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_spec9_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:05:19,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:05:19,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:05:19,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:05:19,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:05:19,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:05:19,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:05:20,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:05:20,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:05:20,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:05:20,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:05:20,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:05:20,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:05:20,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:05:20,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:05:20,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:05:20,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:05:20,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:05:20,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:05:20,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:05:20,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:05:20,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:05:20,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:05:20,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:05:20,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:05:20,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:05:20,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:05:20,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:05:20,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:05:20,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:05:20,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:05:20,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:05:20,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:05:20,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:05:20,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:05:20,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:05:20,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:05:20,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:05:20,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:05:20,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:05:20,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:05:20,037 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 23:05:20,052 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:05:20,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:05:20,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:05:20,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:05:20,054 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:05:20,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:05:20,055 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:05:20,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:05:20,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:05:20,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:05:20,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:05:20,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:05:20,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:05:20,056 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:05:20,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:05:20,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:05:20,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:05:20,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:05:20,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:05:20,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:05:20,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:05:20,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:20,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:05:20,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:05:20,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:05:20,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:05:20,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:05:20,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:05:20,059 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 23:05:20,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:05:20,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:05:20,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:05:20,361 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:05:20,361 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:05:20,362 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-13 23:05:20,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a40938e/3c796c2853e2452099acefe13e1e49d5/FLAG382293de8 [2019-10-13 23:05:21,048 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:05:21,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-13 23:05:21,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a40938e/3c796c2853e2452099acefe13e1e49d5/FLAG382293de8 [2019-10-13 23:05:21,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a40938e/3c796c2853e2452099acefe13e1e49d5 [2019-10-13 23:05:21,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:05:21,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:05:21,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:21,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:05:21,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:05:21,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:21" (1/1) ... [2019-10-13 23:05:21,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437675f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:21, skipping insertion in model container [2019-10-13 23:05:21,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:21" (1/1) ... [2019-10-13 23:05:21,269 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:05:21,342 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:05:22,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:22,116 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:05:22,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:22,352 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:05:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22 WrapperNode [2019-10-13 23:05:22,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:22,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:05:22,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:05:22,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:05:22,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (1/1) ... [2019-10-13 23:05:22,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:05:22,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:05:22,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:05:22,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:05:22,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (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 23:05:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:05:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:05:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:05:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:05:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:05:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:05:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:05:22,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:05:22,652 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:05:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:05:22,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:05:22,654 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:05:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:05:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:05:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:05:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:05:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:05:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:05:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:05:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:05:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:05:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:05:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:05:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:05:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:05:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:05:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 23:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:05:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:05:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:05:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:05:22,665 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:05:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:05:22,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:05:22,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-13 23:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-13 23:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-13 23:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-13 23:05:22,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:05:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:05:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:05:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:05:22,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:05:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:05:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:05:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:05:22,671 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:05:22,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:05:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:05:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:05:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:05:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:05:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:05:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:05:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:05:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:05:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:05:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:05:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:05:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:05:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:05:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:05:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:05:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:05:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:05:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:05:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:05:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:05:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:05:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:05:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:05:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:05:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:05:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:05:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:05:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:05:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 23:05:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-13 23:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:05:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:05:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:05:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:05:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:05:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-13 23:05:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:05:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:05:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:05:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:05:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:05:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:05:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:05:22,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:05:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:05:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:05:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:05:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:05:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:05:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:05:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:05:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:05:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:05:28,009 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:05:28,010 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:05:28,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:28 BoogieIcfgContainer [2019-10-13 23:05:28,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:05:28,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:05:28,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:05:28,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:05:28,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:05:21" (1/3) ... [2019-10-13 23:05:28,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d04045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:28, skipping insertion in model container [2019-10-13 23:05:28,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:22" (2/3) ... [2019-10-13 23:05:28,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d04045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:28, skipping insertion in model container [2019-10-13 23:05:28,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:28" (3/3) ... [2019-10-13 23:05:28,022 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2019-10-13 23:05:28,033 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:05:28,043 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:05:28,056 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:05:28,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:05:28,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:05:28,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:05:28,091 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:05:28,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:05:28,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:05:28,091 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:05:28,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:05:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states. [2019-10-13 23:05:28,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 23:05:28,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:28,161 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:28,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:28,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1257646830, now seen corresponding path program 1 times [2019-10-13 23:05:28,181 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:28,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43062825] [2019-10-13 23:05:28,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:28,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:28,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:05:28,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43062825] [2019-10-13 23:05:28,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:28,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:05:28,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921436220] [2019-10-13 23:05:28,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:05:28,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:28,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:05:28,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:05:28,929 INFO L87 Difference]: Start difference. First operand 528 states. Second operand 8 states. [2019-10-13 23:05:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:29,182 INFO L93 Difference]: Finished difference Result 808 states and 1249 transitions. [2019-10-13 23:05:29,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:05:29,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-13 23:05:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:29,218 INFO L225 Difference]: With dead ends: 808 [2019-10-13 23:05:29,219 INFO L226 Difference]: Without dead ends: 436 [2019-10-13 23:05:29,231 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:05:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-13 23:05:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 401. [2019-10-13 23:05:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:05:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 599 transitions. [2019-10-13 23:05:29,361 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 599 transitions. Word has length 92 [2019-10-13 23:05:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:29,362 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 599 transitions. [2019-10-13 23:05:29,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:05:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 599 transitions. [2019-10-13 23:05:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 23:05:29,371 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:29,372 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:29,372 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:29,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:29,373 INFO L82 PathProgramCache]: Analyzing trace with hash -201394643, now seen corresponding path program 1 times [2019-10-13 23:05:29,373 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:29,373 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859668279] [2019-10-13 23:05:29,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:29,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:29,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:05:29,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859668279] [2019-10-13 23:05:29,678 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:29,678 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:29,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610311438] [2019-10-13 23:05:29,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:29,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:29,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:29,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:29,689 INFO L87 Difference]: Start difference. First operand 401 states and 599 transitions. Second operand 7 states. [2019-10-13 23:05:33,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:33,233 INFO L93 Difference]: Finished difference Result 1234 states and 1906 transitions. [2019-10-13 23:05:33,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 23:05:33,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-13 23:05:33,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:33,241 INFO L225 Difference]: With dead ends: 1234 [2019-10-13 23:05:33,241 INFO L226 Difference]: Without dead ends: 875 [2019-10-13 23:05:33,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-13 23:05:33,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2019-10-13 23:05:33,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 848. [2019-10-13 23:05:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2019-10-13 23:05:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1313 transitions. [2019-10-13 23:05:33,326 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1313 transitions. Word has length 97 [2019-10-13 23:05:33,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:33,326 INFO L462 AbstractCegarLoop]: Abstraction has 848 states and 1313 transitions. [2019-10-13 23:05:33,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1313 transitions. [2019-10-13 23:05:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-13 23:05:33,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:33,332 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:33,333 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash -944067870, now seen corresponding path program 1 times [2019-10-13 23:05:33,334 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:33,334 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017677026] [2019-10-13 23:05:33,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:33,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:33,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:05:33,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017677026] [2019-10-13 23:05:33,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:33,523 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:05:33,523 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615146804] [2019-10-13 23:05:33,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:05:33,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:33,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:05:33,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:05:33,525 INFO L87 Difference]: Start difference. First operand 848 states and 1313 transitions. Second operand 5 states. [2019-10-13 23:05:33,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:33,600 INFO L93 Difference]: Finished difference Result 1344 states and 2094 transitions. [2019-10-13 23:05:33,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:05:33,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-13 23:05:33,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:33,609 INFO L225 Difference]: With dead ends: 1344 [2019-10-13 23:05:33,609 INFO L226 Difference]: Without dead ends: 870 [2019-10-13 23:05:33,611 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:05:33,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-13 23:05:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 860. [2019-10-13 23:05:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2019-10-13 23:05:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1328 transitions. [2019-10-13 23:05:33,670 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1328 transitions. Word has length 101 [2019-10-13 23:05:33,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:33,670 INFO L462 AbstractCegarLoop]: Abstraction has 860 states and 1328 transitions. [2019-10-13 23:05:33,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:05:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1328 transitions. [2019-10-13 23:05:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-13 23:05:33,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:33,674 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:33,674 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:33,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:33,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1733405498, now seen corresponding path program 1 times [2019-10-13 23:05:33,675 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:33,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343401194] [2019-10-13 23:05:33,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:33,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:33,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:05:33,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343401194] [2019-10-13 23:05:33,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:33,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:05:33,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265082335] [2019-10-13 23:05:33,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:05:33,908 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:33,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:05:33,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:05:33,909 INFO L87 Difference]: Start difference. First operand 860 states and 1328 transitions. Second operand 8 states. [2019-10-13 23:05:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:37,239 INFO L93 Difference]: Finished difference Result 1825 states and 2823 transitions. [2019-10-13 23:05:37,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:05:37,239 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-13 23:05:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:37,252 INFO L225 Difference]: With dead ends: 1825 [2019-10-13 23:05:37,252 INFO L226 Difference]: Without dead ends: 1243 [2019-10-13 23:05:37,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:05:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2019-10-13 23:05:37,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1193. [2019-10-13 23:05:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-13 23:05:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1800 transitions. [2019-10-13 23:05:37,378 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1800 transitions. Word has length 105 [2019-10-13 23:05:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:37,382 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1800 transitions. [2019-10-13 23:05:37,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:05:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1800 transitions. [2019-10-13 23:05:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 23:05:37,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:37,388 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:05:37,388 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:37,389 INFO L82 PathProgramCache]: Analyzing trace with hash 993846073, now seen corresponding path program 1 times [2019-10-13 23:05:37,389 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:37,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468008245] [2019-10-13 23:05:37,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:37,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:37,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:05:37,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468008245] [2019-10-13 23:05:37,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:37,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:37,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333766386] [2019-10-13 23:05:37,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:37,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:37,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:37,652 INFO L87 Difference]: Start difference. First operand 1193 states and 1800 transitions. Second operand 7 states. [2019-10-13 23:05:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:37,933 INFO L93 Difference]: Finished difference Result 2252 states and 3483 transitions. [2019-10-13 23:05:37,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:05:37,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-13 23:05:37,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:37,954 INFO L225 Difference]: With dead ends: 2252 [2019-10-13 23:05:37,954 INFO L226 Difference]: Without dead ends: 1193 [2019-10-13 23:05:37,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:05:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2019-10-13 23:05:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2019-10-13 23:05:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-13 23:05:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-10-13 23:05:38,072 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 108 [2019-10-13 23:05:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:38,073 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-10-13 23:05:38,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-10-13 23:05:38,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-13 23:05:38,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:38,082 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:05:38,083 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1760314651, now seen corresponding path program 1 times [2019-10-13 23:05:38,084 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:38,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609261584] [2019-10-13 23:05:38,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:38,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:38,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:38,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609261584] [2019-10-13 23:05:38,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:38,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:38,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43571840] [2019-10-13 23:05:38,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:38,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:38,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:38,369 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 7 states. [2019-10-13 23:05:41,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:41,755 INFO L93 Difference]: Finished difference Result 2121 states and 3153 transitions. [2019-10-13 23:05:41,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:05:41,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-13 23:05:41,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:41,764 INFO L225 Difference]: With dead ends: 2121 [2019-10-13 23:05:41,765 INFO L226 Difference]: Without dead ends: 1263 [2019-10-13 23:05:41,769 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 [2019-10-13 23:05:41,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2019-10-13 23:05:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1220. [2019-10-13 23:05:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1220 states. [2019-10-13 23:05:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1802 transitions. [2019-10-13 23:05:41,840 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1802 transitions. Word has length 110 [2019-10-13 23:05:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:41,841 INFO L462 AbstractCegarLoop]: Abstraction has 1220 states and 1802 transitions. [2019-10-13 23:05:41,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1802 transitions. [2019-10-13 23:05:41,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:05:41,844 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:41,844 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:05:41,844 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:41,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:41,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1070473477, now seen corresponding path program 1 times [2019-10-13 23:05:41,845 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:41,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076877256] [2019-10-13 23:05:41,845 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:41,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:41,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 23:05:42,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076877256] [2019-10-13 23:05:42,027 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:42,027 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:05:42,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800753348] [2019-10-13 23:05:42,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:05:42,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:42,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:05:42,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:42,029 INFO L87 Difference]: Start difference. First operand 1220 states and 1802 transitions. Second operand 3 states. [2019-10-13 23:05:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:42,164 INFO L93 Difference]: Finished difference Result 3533 states and 5300 transitions. [2019-10-13 23:05:42,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:05:42,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-10-13 23:05:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:42,183 INFO L225 Difference]: With dead ends: 3533 [2019-10-13 23:05:42,183 INFO L226 Difference]: Without dead ends: 2355 [2019-10-13 23:05:42,191 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2019-10-13 23:05:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2308. [2019-10-13 23:05:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-10-13 23:05:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3455 transitions. [2019-10-13 23:05:42,317 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3455 transitions. Word has length 114 [2019-10-13 23:05:42,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:42,319 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 3455 transitions. [2019-10-13 23:05:42,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:05:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3455 transitions. [2019-10-13 23:05:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-13 23:05:42,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:42,323 INFO L380 BasicCegarLoop]: trace histogram [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 23:05:42,323 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:42,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:42,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1269557317, now seen corresponding path program 1 times [2019-10-13 23:05:42,324 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:42,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6978874] [2019-10-13 23:05:42,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:05:42,489 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6978874] [2019-10-13 23:05:42,489 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:42,490 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:05:42,490 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689045993] [2019-10-13 23:05:42,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:05:42,491 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:42,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:05:42,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:42,491 INFO L87 Difference]: Start difference. First operand 2308 states and 3455 transitions. Second operand 3 states. [2019-10-13 23:05:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:42,700 INFO L93 Difference]: Finished difference Result 6798 states and 10328 transitions. [2019-10-13 23:05:42,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:05:42,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-13 23:05:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:42,735 INFO L225 Difference]: With dead ends: 6798 [2019-10-13 23:05:42,735 INFO L226 Difference]: Without dead ends: 4533 [2019-10-13 23:05:42,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2019-10-13 23:05:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4485. [2019-10-13 23:05:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4485 states. [2019-10-13 23:05:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6800 transitions. [2019-10-13 23:05:43,001 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6800 transitions. Word has length 118 [2019-10-13 23:05:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:43,002 INFO L462 AbstractCegarLoop]: Abstraction has 4485 states and 6800 transitions. [2019-10-13 23:05:43,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:05:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6800 transitions. [2019-10-13 23:05:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 23:05:43,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:43,006 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:43,007 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:43,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:43,007 INFO L82 PathProgramCache]: Analyzing trace with hash 700308795, now seen corresponding path program 1 times [2019-10-13 23:05:43,008 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:43,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612810390] [2019-10-13 23:05:43,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:43,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:43,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:05:43,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612810390] [2019-10-13 23:05:43,213 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:43,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:05:43,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506777011] [2019-10-13 23:05:43,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:05:43,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:43,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:05:43,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:43,215 INFO L87 Difference]: Start difference. First operand 4485 states and 6800 transitions. Second operand 3 states. [2019-10-13 23:05:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:43,714 INFO L93 Difference]: Finished difference Result 13329 states and 20584 transitions. [2019-10-13 23:05:43,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:05:43,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-13 23:05:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:43,798 INFO L225 Difference]: With dead ends: 13329 [2019-10-13 23:05:43,799 INFO L226 Difference]: Without dead ends: 8889 [2019-10-13 23:05:43,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8889 states. [2019-10-13 23:05:44,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8889 to 8840. [2019-10-13 23:05:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8840 states. [2019-10-13 23:05:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 13624 transitions. [2019-10-13 23:05:44,369 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 13624 transitions. Word has length 119 [2019-10-13 23:05:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:44,370 INFO L462 AbstractCegarLoop]: Abstraction has 8840 states and 13624 transitions. [2019-10-13 23:05:44,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:05:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 13624 transitions. [2019-10-13 23:05:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-13 23:05:44,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:44,373 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:44,374 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:44,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:44,374 INFO L82 PathProgramCache]: Analyzing trace with hash -914100677, now seen corresponding path program 1 times [2019-10-13 23:05:44,374 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:44,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207966684] [2019-10-13 23:05:44,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:44,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:44,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 23:05:44,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207966684] [2019-10-13 23:05:44,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:44,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:05:44,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345011384] [2019-10-13 23:05:44,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:05:44,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:44,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:05:44,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:44,529 INFO L87 Difference]: Start difference. First operand 8840 states and 13624 transitions. Second operand 3 states. [2019-10-13 23:05:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:45,397 INFO L93 Difference]: Finished difference Result 26392 states and 41789 transitions. [2019-10-13 23:05:45,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:05:45,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-13 23:05:45,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:45,555 INFO L225 Difference]: With dead ends: 26392 [2019-10-13 23:05:45,556 INFO L226 Difference]: Without dead ends: 17601 [2019-10-13 23:05:45,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17601 states. [2019-10-13 23:05:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17601 to 17551. [2019-10-13 23:05:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17551 states. [2019-10-13 23:05:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17551 states to 17551 states and 27748 transitions. [2019-10-13 23:05:47,682 INFO L78 Accepts]: Start accepts. Automaton has 17551 states and 27748 transitions. Word has length 117 [2019-10-13 23:05:47,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:47,683 INFO L462 AbstractCegarLoop]: Abstraction has 17551 states and 27748 transitions. [2019-10-13 23:05:47,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:05:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 17551 states and 27748 transitions. [2019-10-13 23:05:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-13 23:05:47,687 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:47,687 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:05:47,687 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:47,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:47,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1726395529, now seen corresponding path program 1 times [2019-10-13 23:05:47,688 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:47,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151023552] [2019-10-13 23:05:47,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:47,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:47,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 23:05:47,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151023552] [2019-10-13 23:05:47,847 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:47,847 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:05:47,847 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454525411] [2019-10-13 23:05:47,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:05:47,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:47,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:05:47,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:47,849 INFO L87 Difference]: Start difference. First operand 17551 states and 27748 transitions. Second operand 3 states. [2019-10-13 23:05:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:48,379 INFO L93 Difference]: Finished difference Result 18691 states and 29719 transitions. [2019-10-13 23:05:48,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:05:48,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-13 23:05:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:48,510 INFO L225 Difference]: With dead ends: 18691 [2019-10-13 23:05:48,510 INFO L226 Difference]: Without dead ends: 18678 [2019-10-13 23:05:48,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:05:48,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18678 states. [2019-10-13 23:05:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18678 to 18633. [2019-10-13 23:05:49,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18633 states. [2019-10-13 23:05:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 29632 transitions. [2019-10-13 23:05:49,646 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 29632 transitions. Word has length 118 [2019-10-13 23:05:49,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:49,647 INFO L462 AbstractCegarLoop]: Abstraction has 18633 states and 29632 transitions. [2019-10-13 23:05:49,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:05:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 29632 transitions. [2019-10-13 23:05:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 23:05:49,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:49,655 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:49,655 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:49,656 INFO L82 PathProgramCache]: Analyzing trace with hash -906046504, now seen corresponding path program 1 times [2019-10-13 23:05:49,656 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:49,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227414411] [2019-10-13 23:05:49,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:49,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:49,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:05:49,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227414411] [2019-10-13 23:05:49,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77060000] [2019-10-13 23:05:49,838 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 23:05:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:50,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:05:50,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:05:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 23:05:50,561 INFO L321 TraceCheckSpWp]: Computing backward predicates...