java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product22.cil.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.24-13a467a-m
[2019-10-15 03:07:08,420 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-15 03:07:08,423 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-15 03:07:08,437 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-15 03:07:08,437 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-15 03:07:08,439 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-15 03:07:08,440 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-15 03:07:08,442 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-15 03:07:08,444 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-15 03:07:08,445 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-15 03:07:08,446 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-15 03:07:08,447 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-15 03:07:08,448 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-15 03:07:08,449 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-15 03:07:08,450 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-15 03:07:08,451 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-15 03:07:08,452 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-15 03:07:08,456 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-15 03:07:08,457 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-15 03:07:08,459 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-15 03:07:08,461 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-15 03:07:08,462 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-15 03:07:08,463 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-15 03:07:08,464 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-15 03:07:08,466 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-15 03:07:08,466 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-15 03:07:08,467 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-15 03:07:08,468 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-15 03:07:08,468 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-15 03:07:08,469 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-15 03:07:08,470 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-15 03:07:08,471 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-15 03:07:08,471 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-15 03:07:08,472 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-15 03:07:08,473 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-15 03:07:08,473 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-15 03:07:08,474 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-15 03:07:08,475 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-15 03:07:08,475 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-15 03:07:08,476 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-15 03:07:08,477 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-15 03:07:08,479 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-15 03:07:08,500 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-15 03:07:08,500 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-15 03:07:08,503 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-15 03:07:08,503 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-15 03:07:08,503 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-15 03:07:08,503 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-15 03:07:08,504 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-15 03:07:08,504 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-15 03:07:08,504 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-15 03:07:08,504 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-15 03:07:08,506 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-15 03:07:08,506 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-15 03:07:08,506 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-15 03:07:08,507 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-15 03:07:08,507 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-15 03:07:08,507 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-15 03:07:08,507 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-15 03:07:08,507 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-15 03:07:08,508 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-15 03:07:08,508 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-15 03:07:08,508 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-15 03:07:08,508 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-15 03:07:08,509 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-15 03:07:08,509 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-15 03:07:08,509 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-15 03:07:08,509 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-15 03:07:08,509 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-15 03:07:08,510 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-15 03:07:08,510 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-15 03:07:08,833 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-15 03:07:08,848 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-15 03:07:08,854 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-15 03:07:08,856 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-15 03:07:08,857 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-15 03:07:08,857 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product22.cil.c
[2019-10-15 03:07:08,947 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd052355b/6eb03ae2998b45ac87b47d85db3f2d4b/FLAG3603d3e3b
[2019-10-15 03:07:09,620 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-15 03:07:09,621 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product22.cil.c
[2019-10-15 03:07:09,665 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd052355b/6eb03ae2998b45ac87b47d85db3f2d4b/FLAG3603d3e3b
[2019-10-15 03:07:09,821 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd052355b/6eb03ae2998b45ac87b47d85db3f2d4b
[2019-10-15 03:07:09,833 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-15 03:07:09,834 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-15 03:07:09,839 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-15 03:07:09,839 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-15 03:07:09,843 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-15 03:07:09,844 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:09" (1/1) ...
[2019-10-15 03:07:09,848 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e3fb9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:09, skipping insertion in model container
[2019-10-15 03:07:09,848 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:09" (1/1) ...
[2019-10-15 03:07:09,858 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-15 03:07:09,951 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-15 03:07:10,708 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-15 03:07:10,730 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-15 03:07:10,871 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-15 03:07:10,940 INFO  L192         MainTranslator]: Completed translation
[2019-10-15 03:07:10,941 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10 WrapperNode
[2019-10-15 03:07:10,941 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-15 03:07:10,942 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-15 03:07:10,942 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-15 03:07:10,943 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-15 03:07:10,956 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:10,957 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,001 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,011 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,095 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,154 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,185 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
[2019-10-15 03:07:11,226 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-15 03:07:11,227 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-15 03:07:11,227 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-15 03:07:11,229 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-15 03:07:11,231 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-15 03:07:11,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-15 03:07:11,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-15 03:07:11,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2019-10-15 03:07:11,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2019-10-15 03:07:11,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2019-10-15 03:07:11,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2019-10-15 03:07:11,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2019-10-15 03:07:11,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2019-10-15 03:07:11,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2019-10-15 03:07:11,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure initFloors
[2019-10-15 03:07:11,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure isFloorCalling
[2019-10-15 03:07:11,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetCallOnFloor
[2019-10-15 03:07:11,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure callOnFloor
[2019-10-15 03:07:11,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPersonOnFloor
[2019-10-15 03:07:11,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure initPersonOnFloor
[2019-10-15 03:07:11,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure removePersonFromFloor
[2019-10-15 03:07:11,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure isTopFloor
[2019-10-15 03:07:11,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2019-10-15 03:07:11,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec1
[2019-10-15 03:07:11,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec14
[2019-10-15 03:07:11,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07
[2019-10-15 03:07:11,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure bobCall
[2019-10-15 03:07:11,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure aliceCall
[2019-10-15 03:07:11,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure angelinaCall
[2019-10-15 03:07:11,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckCall
[2019-10-15 03:07:11,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure monicaCall
[2019-10-15 03:07:11,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure bigMacCall
[2019-10-15 03:07:11,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure threeTS
[2019-10-15 03:07:11,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2019-10-15 03:07:11,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions
[2019-10-15 03:07:11,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest_Simple
[2019-10-15 03:07:11,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification1
[2019-10-15 03:07:11,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2019-10-15 03:07:11,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification3
[2019-10-15 03:07:11,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2019-10-15 03:07:11,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2019-10-15 03:07:11,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-15 03:07:11,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2019-10-15 03:07:11,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWeight
[2019-10-15 03:07:11,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure getOrigin
[2019-10-15 03:07:11,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure getDestination
[2019-10-15 03:07:11,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2019-10-15 03:07:11,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2019-10-15 03:07:11,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2019-10-15 03:07:11,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure initTopDown
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure initBottomUp
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator
[2019-10-15 03:07:11,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base
[2019-10-15 03:07:11,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator
[2019-10-15 03:07:11,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton
[2019-10-15 03:07:11,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetFloorButton
[2019-10-15 03:07:11,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentFloorID
[2019-10-15 03:07:11,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure areDoorsOpen
[2019-10-15 03:07:11,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed
[2019-10-15 03:07:11,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentHeading
[2019-10-15 03:07:11,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEmpty
[2019-10-15 03:07:11,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure anyStopRequested
[2019-10-15 03:07:11,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure isIdle
[2019-10-15 03:07:11,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight
[2019-10-15 03:07:11,348 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure continueInDirection
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure getReverseHeading
[2019-10-15 03:07:11,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor
[2019-10-15 03:07:11,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull
[2019-10-15 03:07:11,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2019-10-15 03:07:11,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull
[2019-10-15 03:07:11,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState
[2019-10-15 03:07:11,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection
[2019-10-15 03:07:11,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2019-10-15 03:07:11,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2
[2019-10-15 03:07:11,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3
[2019-10-15 03:07:11,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4
[2019-10-15 03:07:11,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-15 03:07:11,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-15 03:07:11,352 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2019-10-15 03:07:11,352 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-10-15 03:07:11,352 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-10-15 03:07:11,353 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2019-10-15 03:07:11,353 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-15 03:07:11,353 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-15 03:07:11,353 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2019-10-15 03:07:11,355 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure isFloorCalling
[2019-10-15 03:07:11,356 INFO  L130     BoogieDeclarations]: Found specification of procedure resetCallOnFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure callOnFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure isPersonOnFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure initPersonOnFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure removePersonFromFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure isTopFloor
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure initFloors
[2019-10-15 03:07:11,357 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure getOrigin
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure printState
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure initTopDown
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure initBottomUp
[2019-10-15 03:07:11,358 INFO  L130     BoogieDeclarations]: Found specification of procedure spec1
[2019-10-15 03:07:11,359 INFO  L130     BoogieDeclarations]: Found specification of procedure spec14
[2019-10-15 03:07:11,359 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-10-15 03:07:11,359 INFO  L130     BoogieDeclarations]: Found specification of procedure get_nondetMinMax07
[2019-10-15 03:07:11,360 INFO  L130     BoogieDeclarations]: Found specification of procedure bobCall
[2019-10-15 03:07:11,360 INFO  L130     BoogieDeclarations]: Found specification of procedure aliceCall
[2019-10-15 03:07:11,360 INFO  L130     BoogieDeclarations]: Found specification of procedure angelinaCall
[2019-10-15 03:07:11,361 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckCall
[2019-10-15 03:07:11,361 INFO  L130     BoogieDeclarations]: Found specification of procedure monicaCall
[2019-10-15 03:07:11,361 INFO  L130     BoogieDeclarations]: Found specification of procedure bigMacCall
[2019-10-15 03:07:11,361 INFO  L130     BoogieDeclarations]: Found specification of procedure threeTS
[2019-10-15 03:07:11,362 INFO  L130     BoogieDeclarations]: Found specification of procedure isIdle
[2019-10-15 03:07:11,363 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2019-10-15 03:07:11,363 INFO  L130     BoogieDeclarations]: Found specification of procedure randomSequenceOfActions
[2019-10-15 03:07:11,363 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest_Simple
[2019-10-15 03:07:11,363 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification1
[2019-10-15 03:07:11,363 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2019-10-15 03:07:11,364 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification3
[2019-10-15 03:07:11,365 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2019-10-15 03:07:11,365 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2019-10-15 03:07:11,366 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4
[2019-10-15 03:07:11,370 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2019-10-15 03:07:11,370 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2019-10-15 03:07:11,371 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2019-10-15 03:07:11,371 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2019-10-15 03:07:11,371 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2019-10-15 03:07:11,371 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-15 03:07:11,371 INFO  L130     BoogieDeclarations]: Found specification of procedure getWeight
[2019-10-15 03:07:11,372 INFO  L130     BoogieDeclarations]: Found specification of procedure getDestination
[2019-10-15 03:07:11,372 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2019-10-15 03:07:11,372 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2019-10-15 03:07:11,380 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator
[2019-10-15 03:07:11,380 INFO  L130     BoogieDeclarations]: Found specification of procedure isEmpty
[2019-10-15 03:07:11,380 INFO  L130     BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed
[2019-10-15 03:07:11,380 INFO  L130     BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed
[2019-10-15 03:07:11,380 INFO  L130     BoogieDeclarations]: Found specification of procedure areDoorsOpen
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentFloorID
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure resetFloorButton
[2019-10-15 03:07:11,381 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentHeading
[2019-10-15 03:07:11,382 INFO  L130     BoogieDeclarations]: Found specification of procedure anyStopRequested
[2019-10-15 03:07:11,382 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight
[2019-10-15 03:07:11,382 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection
[2019-10-15 03:07:11,382 INFO  L130     BoogieDeclarations]: Found specification of procedure continueInDirection
[2019-10-15 03:07:11,383 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight
[2019-10-15 03:07:11,383 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor
[2019-10-15 03:07:11,383 INFO  L130     BoogieDeclarations]: Found specification of procedure getReverseHeading
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure processWaitingOnFloor
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-15 03:07:11,384 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-15 03:07:16,886 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-15 03:07:16,886 INFO  L284             CfgBuilder]: Removed 10 assume(true) statements.
[2019-10-15 03:07:16,888 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:16 BoogieIcfgContainer
[2019-10-15 03:07:16,888 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-15 03:07:16,890 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-15 03:07:16,890 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-15 03:07:16,893 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-15 03:07:16,893 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:09" (1/3) ...
[2019-10-15 03:07:16,894 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544d002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:16, skipping insertion in model container
[2019-10-15 03:07:16,894 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10" (2/3) ...
[2019-10-15 03:07:16,895 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544d002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:16, skipping insertion in model container
[2019-10-15 03:07:16,895 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:16" (3/3) ...
[2019-10-15 03:07:16,896 INFO  L109   eAbstractionObserver]: Analyzing ICFG elevator_spec1_product22.cil.c
[2019-10-15 03:07:16,961 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-15 03:07:16,970 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-15 03:07:16,982 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-15 03:07:17,014 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-15 03:07:17,014 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-15 03:07:17,014 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-15 03:07:17,014 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-15 03:07:17,015 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-15 03:07:17,015 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-15 03:07:17,015 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-15 03:07:17,015 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-15 03:07:17,048 INFO  L276                IsEmpty]: Start isEmpty. Operand 583 states.
[2019-10-15 03:07:17,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2019-10-15 03:07:17,063 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:17,065 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:17,067 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:17,073 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:17,073 INFO  L82        PathProgramCache]: Analyzing trace with hash 1500827247, now seen corresponding path program 1 times
[2019-10-15 03:07:17,083 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:17,084 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101538357]
[2019-10-15 03:07:17,084 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:17,084 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:17,084 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:17,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:17,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2019-10-15 03:07:17,820 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101538357]
[2019-10-15 03:07:17,821 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:17,822 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-15 03:07:17,823 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176762799]
[2019-10-15 03:07:17,835 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-15 03:07:17,836 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:17,852 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-15 03:07:17,853 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-15 03:07:17,855 INFO  L87              Difference]: Start difference. First operand 583 states. Second operand 2 states.
[2019-10-15 03:07:17,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:07:17,932 INFO  L93              Difference]: Finished difference Result 486 states and 722 transitions.
[2019-10-15 03:07:17,933 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2019-10-15 03:07:17,934 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 97
[2019-10-15 03:07:17,936 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:07:17,963 INFO  L225             Difference]: With dead ends: 486
[2019-10-15 03:07:17,963 INFO  L226             Difference]: Without dead ends: 452
[2019-10-15 03:07:17,970 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-15 03:07:17,991 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 452 states.
[2019-10-15 03:07:18,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452.
[2019-10-15 03:07:18,079 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 452 states.
[2019-10-15 03:07:18,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 671 transitions.
[2019-10-15 03:07:18,102 INFO  L78                 Accepts]: Start accepts. Automaton has 452 states and 671 transitions. Word has length 97
[2019-10-15 03:07:18,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:07:18,104 INFO  L462      AbstractCegarLoop]: Abstraction has 452 states and 671 transitions.
[2019-10-15 03:07:18,104 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-15 03:07:18,104 INFO  L276                IsEmpty]: Start isEmpty. Operand 452 states and 671 transitions.
[2019-10-15 03:07:18,110 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2019-10-15 03:07:18,110 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:18,111 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:18,111 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:18,112 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:18,112 INFO  L82        PathProgramCache]: Analyzing trace with hash -1281384838, now seen corresponding path program 1 times
[2019-10-15 03:07:18,112 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:18,112 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395968484]
[2019-10-15 03:07:18,113 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:18,113 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:18,113 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:18,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:18,590 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2019-10-15 03:07:18,590 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395968484]
[2019-10-15 03:07:18,590 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:18,591 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2019-10-15 03:07:18,591 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714765967]
[2019-10-15 03:07:18,593 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-10-15 03:07:18,593 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:18,593 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-10-15 03:07:18,594 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2019-10-15 03:07:18,594 INFO  L87              Difference]: Start difference. First operand 452 states and 671 transitions. Second operand 9 states.
[2019-10-15 03:07:27,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:07:27,089 INFO  L93              Difference]: Finished difference Result 1217 states and 1853 transitions.
[2019-10-15 03:07:27,090 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2019-10-15 03:07:27,090 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 98
[2019-10-15 03:07:27,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:07:27,119 INFO  L225             Difference]: With dead ends: 1217
[2019-10-15 03:07:27,119 INFO  L226             Difference]: Without dead ends: 818
[2019-10-15 03:07:27,140 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2019-10-15 03:07:27,142 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 818 states.
[2019-10-15 03:07:27,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 787.
[2019-10-15 03:07:27,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 787 states.
[2019-10-15 03:07:27,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1158 transitions.
[2019-10-15 03:07:27,257 INFO  L78                 Accepts]: Start accepts. Automaton has 787 states and 1158 transitions. Word has length 98
[2019-10-15 03:07:27,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:07:27,258 INFO  L462      AbstractCegarLoop]: Abstraction has 787 states and 1158 transitions.
[2019-10-15 03:07:27,258 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-10-15 03:07:27,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 787 states and 1158 transitions.
[2019-10-15 03:07:27,263 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2019-10-15 03:07:27,263 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:27,263 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:27,264 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:27,264 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:27,264 INFO  L82        PathProgramCache]: Analyzing trace with hash 837344238, now seen corresponding path program 1 times
[2019-10-15 03:07:27,265 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:27,265 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678338486]
[2019-10-15 03:07:27,266 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:27,266 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:27,266 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:27,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:27,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2019-10-15 03:07:27,535 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678338486]
[2019-10-15 03:07:27,536 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:27,536 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-15 03:07:27,536 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6486546]
[2019-10-15 03:07:27,539 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-15 03:07:27,540 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:27,540 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-15 03:07:27,541 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-15 03:07:27,541 INFO  L87              Difference]: Start difference. First operand 787 states and 1158 transitions. Second operand 3 states.
[2019-10-15 03:07:27,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:07:27,743 INFO  L93              Difference]: Finished difference Result 2247 states and 3357 transitions.
[2019-10-15 03:07:27,743 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-15 03:07:27,744 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 99
[2019-10-15 03:07:27,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:07:27,771 INFO  L225             Difference]: With dead ends: 2247
[2019-10-15 03:07:27,771 INFO  L226             Difference]: Without dead ends: 1515
[2019-10-15 03:07:27,779 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
[2019-10-15 03:07:27,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1515 states.
[2019-10-15 03:07:27,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1508.
[2019-10-15 03:07:27,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1508 states.
[2019-10-15 03:07:27,951 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2244 transitions.
[2019-10-15 03:07:27,954 INFO  L78                 Accepts]: Start accepts. Automaton has 1508 states and 2244 transitions. Word has length 99
[2019-10-15 03:07:27,955 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:07:27,955 INFO  L462      AbstractCegarLoop]: Abstraction has 1508 states and 2244 transitions.
[2019-10-15 03:07:27,955 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-15 03:07:27,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 1508 states and 2244 transitions.
[2019-10-15 03:07:27,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2019-10-15 03:07:27,970 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:27,971 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:27,971 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:27,971 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:27,972 INFO  L82        PathProgramCache]: Analyzing trace with hash 187569329, now seen corresponding path program 1 times
[2019-10-15 03:07:27,972 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:27,973 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081248643]
[2019-10-15 03:07:27,973 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:27,973 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:27,974 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:28,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:28,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2019-10-15 03:07:28,464 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081248643]
[2019-10-15 03:07:28,465 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:28,465 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-15 03:07:28,465 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556563015]
[2019-10-15 03:07:28,466 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-15 03:07:28,466 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:28,466 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-15 03:07:28,466 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-15 03:07:28,466 INFO  L87              Difference]: Start difference. First operand 1508 states and 2244 transitions. Second operand 6 states.
[2019-10-15 03:07:32,399 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:07:32,399 INFO  L93              Difference]: Finished difference Result 4805 states and 7297 transitions.
[2019-10-15 03:07:32,400 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-15 03:07:32,400 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 100
[2019-10-15 03:07:32,401 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:07:32,438 INFO  L225             Difference]: With dead ends: 4805
[2019-10-15 03:07:32,438 INFO  L226             Difference]: Without dead ends: 3353
[2019-10-15 03:07:32,452 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2019-10-15 03:07:32,466 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3353 states.
[2019-10-15 03:07:32,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3042.
[2019-10-15 03:07:32,675 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3042 states.
[2019-10-15 03:07:32,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4615 transitions.
[2019-10-15 03:07:32,699 INFO  L78                 Accepts]: Start accepts. Automaton has 3042 states and 4615 transitions. Word has length 100
[2019-10-15 03:07:32,701 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:07:32,701 INFO  L462      AbstractCegarLoop]: Abstraction has 3042 states and 4615 transitions.
[2019-10-15 03:07:32,701 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-15 03:07:32,701 INFO  L276                IsEmpty]: Start isEmpty. Operand 3042 states and 4615 transitions.
[2019-10-15 03:07:32,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-10-15 03:07:32,706 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:32,707 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:32,707 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:32,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:32,708 INFO  L82        PathProgramCache]: Analyzing trace with hash 1550250293, now seen corresponding path program 1 times
[2019-10-15 03:07:32,708 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:32,708 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637755685]
[2019-10-15 03:07:32,709 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:32,709 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:32,709 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:32,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:33,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2019-10-15 03:07:33,023 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637755685]
[2019-10-15 03:07:33,023 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:33,024 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2019-10-15 03:07:33,024 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975194198]
[2019-10-15 03:07:33,025 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 12 states
[2019-10-15 03:07:33,026 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:33,026 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2019-10-15 03:07:33,027 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2019-10-15 03:07:33,027 INFO  L87              Difference]: Start difference. First operand 3042 states and 4615 transitions. Second operand 12 states.
[2019-10-15 03:07:42,084 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:07:42,085 INFO  L93              Difference]: Finished difference Result 9144 states and 13864 transitions.
[2019-10-15 03:07:42,085 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2019-10-15 03:07:42,086 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 139
[2019-10-15 03:07:42,086 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:07:42,129 INFO  L225             Difference]: With dead ends: 9144
[2019-10-15 03:07:42,129 INFO  L226             Difference]: Without dead ends: 6157
[2019-10-15 03:07:42,152 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992
[2019-10-15 03:07:42,160 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6157 states.
[2019-10-15 03:07:42,501 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6157 to 6055.
[2019-10-15 03:07:42,502 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6055 states.
[2019-10-15 03:07:42,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 9082 transitions.
[2019-10-15 03:07:42,533 INFO  L78                 Accepts]: Start accepts. Automaton has 6055 states and 9082 transitions. Word has length 139
[2019-10-15 03:07:42,536 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:07:42,536 INFO  L462      AbstractCegarLoop]: Abstraction has 6055 states and 9082 transitions.
[2019-10-15 03:07:42,537 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2019-10-15 03:07:42,538 INFO  L276                IsEmpty]: Start isEmpty. Operand 6055 states and 9082 transitions.
[2019-10-15 03:07:42,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2019-10-15 03:07:42,544 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:07:42,545 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-15 03:07:42,545 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:07:42,545 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:07:42,545 INFO  L82        PathProgramCache]: Analyzing trace with hash 475221456, now seen corresponding path program 1 times
[2019-10-15 03:07:42,546 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:07:42,546 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74966745]
[2019-10-15 03:07:42,546 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:42,547 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:07:42,548 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:07:42,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:07:42,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2019-10-15 03:07:42,863 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74966745]
[2019-10-15 03:07:42,863 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:07:42,863 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2019-10-15 03:07:42,863 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701495147]
[2019-10-15 03:07:42,864 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-10-15 03:07:42,864 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:07:42,865 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-10-15 03:07:42,865 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2019-10-15 03:07:42,865 INFO  L87              Difference]: Start difference. First operand 6055 states and 9082 transitions. Second operand 9 states.