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_spec3_product32.cil.c


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


This is Ultimate 0.1.24-13a467a-m
[2019-10-15 03:09:47,174 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-15 03:09:47,177 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-15 03:09:47,196 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-15 03:09:47,197 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-15 03:09:47,199 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-15 03:09:47,201 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-15 03:09:47,211 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-15 03:09:47,213 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-15 03:09:47,214 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-15 03:09:47,216 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-15 03:09:47,218 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-15 03:09:47,218 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-15 03:09:47,219 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-15 03:09:47,221 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-15 03:09:47,223 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-15 03:09:47,224 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-15 03:09:47,225 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-15 03:09:47,230 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-15 03:09:47,234 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-15 03:09:47,238 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-15 03:09:47,241 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-15 03:09:47,244 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-15 03:09:47,245 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-15 03:09:47,249 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-15 03:09:47,250 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-15 03:09:47,250 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-15 03:09:47,252 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-15 03:09:47,253 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-15 03:09:47,255 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-15 03:09:47,255 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-15 03:09:47,257 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-15 03:09:47,258 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-15 03:09:47,258 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-15 03:09:47,262 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-15 03:09:47,262 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-15 03:09:47,263 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-15 03:09:47,263 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-15 03:09:47,264 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-15 03:09:47,264 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-15 03:09:47,266 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-15 03:09:47,267 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 03:09:47,287 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-15 03:09:47,288 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-15 03:09:47,290 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-15 03:09:47,290 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-15 03:09:47,290 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-15 03:09:47,291 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-15 03:09:47,291 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-15 03:09:47,291 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-15 03:09:47,291 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-15 03:09:47,291 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-15 03:09:47,292 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-15 03:09:47,293 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-15 03:09:47,293 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-15 03:09:47,293 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-15 03:09:47,294 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-15 03:09:47,294 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-15 03:09:47,294 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-15 03:09:47,294 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-15 03:09:47,294 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-15 03:09:47,295 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-15 03:09:47,295 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-15 03:09:47,295 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-15 03:09:47,295 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-15 03:09:47,295 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-15 03:09:47,296 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-15 03:09:47,296 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-15 03:09:47,296 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-15 03:09:47,296 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-15 03:09:47,296 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 03:09:47,624 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-15 03:09:47,637 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-15 03:09:47,641 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-15 03:09:47,643 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-15 03:09:47,643 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-15 03:09:47,644 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c
[2019-10-15 03:09:47,713 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f60a1d9ef/9243bda3470546ccb20f4196ec3fabe2/FLAGe218bb9e5
[2019-10-15 03:09:48,492 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-15 03:09:48,494 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c
[2019-10-15 03:09:48,517 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f60a1d9ef/9243bda3470546ccb20f4196ec3fabe2/FLAGe218bb9e5
[2019-10-15 03:09:48,643 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f60a1d9ef/9243bda3470546ccb20f4196ec3fabe2
[2019-10-15 03:09:48,662 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-15 03:09:48,665 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-15 03:09:48,667 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-15 03:09:48,667 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-15 03:09:48,672 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-15 03:09:48,673 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:48" (1/1) ...
[2019-10-15 03:09:48,678 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de7e4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:48, skipping insertion in model container
[2019-10-15 03:09:48,678 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:48" (1/1) ...
[2019-10-15 03:09:48,688 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-15 03:09:48,803 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-15 03:09:50,120 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-15 03:09:50,161 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-15 03:09:50,362 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-15 03:09:50,464 INFO  L192         MainTranslator]: Completed translation
[2019-10-15 03:09:50,465 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50 WrapperNode
[2019-10-15 03:09:50,465 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-15 03:09:50,466 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-15 03:09:50,467 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-15 03:09:50,467 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-15 03:09:50,488 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,489 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,529 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,529 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,637 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,684 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,706 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (1/1) ...
[2019-10-15 03:09:50,721 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-15 03:09:50,721 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-15 03:09:50,722 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-15 03:09:50,722 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-15 03:09:50,726 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (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 03:09:50,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-15 03:09:50,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-15 03:09:50,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2019-10-15 03:09:50,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec1
[2019-10-15 03:09:50,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec14
[2019-10-15 03:09:50,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2019-10-15 03:09:50,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2019-10-15 03:09:50,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2019-10-15 03:09:50,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2019-10-15 03:09:50,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2019-10-15 03:09:50,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2019-10-15 03:09:50,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2019-10-15 03:09:50,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2019-10-15 03:09:50,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2019-10-15 03:09:50,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2019-10-15 03:09:50,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2019-10-15 03:09:50,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2019-10-15 03:09:50,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2
[2019-10-15 03:09:50,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWeight
[2019-10-15 03:09:50,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure getOrigin
[2019-10-15 03:09:50,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure getDestination
[2019-10-15 03:09:50,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure initFloors
[2019-10-15 03:09:50,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure isFloorCalling
[2019-10-15 03:09:50,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetCallOnFloor
[2019-10-15 03:09:50,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure callOnFloor
[2019-10-15 03:09:50,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPersonOnFloor
[2019-10-15 03:09:50,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure initPersonOnFloor
[2019-10-15 03:09:50,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure removePersonFromFloor
[2019-10-15 03:09:50,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure isTopFloor
[2019-10-15 03:09:50,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2019-10-15 03:09:50,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07
[2019-10-15 03:09:50,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure bobCall
[2019-10-15 03:09:50,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure aliceCall
[2019-10-15 03:09:50,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure angelinaCall
[2019-10-15 03:09:50,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckCall
[2019-10-15 03:09:50,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure monicaCall
[2019-10-15 03:09:50,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure bigMacCall
[2019-10-15 03:09:50,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure threeTS
[2019-10-15 03:09:50,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2019-10-15 03:09:50,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions
[2019-10-15 03:09:50,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest_Simple
[2019-10-15 03:09:50,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification1
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification3
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-15 03:09:50,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure initTopDown
[2019-10-15 03:09:50,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure initBottomUp
[2019-10-15 03:09:50,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked
[2019-10-15 03:09:50,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base
[2019-10-15 03:09:50,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator
[2019-10-15 03:09:50,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetFloorButton
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentFloorID
[2019-10-15 03:09:50,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure areDoorsOpen
[2019-10-15 03:09:50,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed
[2019-10-15 03:09:50,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentHeading
[2019-10-15 03:09:50,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEmpty
[2019-10-15 03:09:50,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure anyStopRequested
[2019-10-15 03:09:50,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure isIdle
[2019-10-15 03:09:50,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty
[2019-10-15 03:09:50,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure continueInDirection
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull
[2019-10-15 03:09:50,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor
[2019-10-15 03:09:50,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure getReverseHeading
[2019-10-15 03:09:50,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor
[2019-10-15 03:09:50,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor
[2019-10-15 03:09:50,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2019-10-15 03:09:50,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor
[2019-10-15 03:09:50,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState
[2019-10-15 03:09:50,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection
[2019-10-15 03:09:50,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling
[2019-10-15 03:09:50,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloor
[2019-10-15 03:09:50,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-15 03:09:50,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-15 03:09:50,841 INFO  L130     BoogieDeclarations]: Found specification of procedure getOrigin
[2019-10-15 03:09:50,841 INFO  L130     BoogieDeclarations]: Found specification of procedure initPersonOnFloor
[2019-10-15 03:09:50,842 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2019-10-15 03:09:50,842 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked
[2019-10-15 03:09:50,843 INFO  L130     BoogieDeclarations]: Found specification of procedure printState
[2019-10-15 03:09:50,843 INFO  L130     BoogieDeclarations]: Found specification of procedure initTopDown
[2019-10-15 03:09:50,843 INFO  L130     BoogieDeclarations]: Found specification of procedure initBottomUp
[2019-10-15 03:09:50,843 INFO  L130     BoogieDeclarations]: Found specification of procedure spec1
[2019-10-15 03:09:50,843 INFO  L130     BoogieDeclarations]: Found specification of procedure spec14
[2019-10-15 03:09:50,844 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2019-10-15 03:09:50,844 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2019-10-15 03:09:50,844 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2019-10-15 03:09:50,844 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2019-10-15 03:09:50,844 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-15 03:09:50,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-10-15 03:09:50,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentFloorID
[2019-10-15 03:09:50,847 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentHeading
[2019-10-15 03:09:50,848 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2019-10-15 03:09:50,848 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2
[2019-10-15 03:09:50,848 INFO  L130     BoogieDeclarations]: Found specification of procedure getWeight
[2019-10-15 03:09:50,849 INFO  L130     BoogieDeclarations]: Found specification of procedure getDestination
[2019-10-15 03:09:50,849 INFO  L130     BoogieDeclarations]: Found specification of procedure isFloorCalling
[2019-10-15 03:09:50,849 INFO  L130     BoogieDeclarations]: Found specification of procedure resetCallOnFloor
[2019-10-15 03:09:50,850 INFO  L130     BoogieDeclarations]: Found specification of procedure callOnFloor
[2019-10-15 03:09:50,851 INFO  L130     BoogieDeclarations]: Found specification of procedure isPersonOnFloor
[2019-10-15 03:09:50,851 INFO  L130     BoogieDeclarations]: Found specification of procedure removePersonFromFloor
[2019-10-15 03:09:50,851 INFO  L130     BoogieDeclarations]: Found specification of procedure isTopFloor
[2019-10-15 03:09:50,851 INFO  L130     BoogieDeclarations]: Found specification of procedure initFloors
[2019-10-15 03:09:50,851 INFO  L130     BoogieDeclarations]: Found specification of procedure bobCall
[2019-10-15 03:09:50,852 INFO  L130     BoogieDeclarations]: Found specification of procedure threeTS
[2019-10-15 03:09:50,852 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2019-10-15 03:09:50,852 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2019-10-15 03:09:50,853 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-10-15 03:09:50,853 INFO  L130     BoogieDeclarations]: Found specification of procedure get_nondetMinMax07
[2019-10-15 03:09:50,857 INFO  L130     BoogieDeclarations]: Found specification of procedure aliceCall
[2019-10-15 03:09:50,857 INFO  L130     BoogieDeclarations]: Found specification of procedure angelinaCall
[2019-10-15 03:09:50,857 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckCall
[2019-10-15 03:09:50,857 INFO  L130     BoogieDeclarations]: Found specification of procedure monicaCall
[2019-10-15 03:09:50,857 INFO  L130     BoogieDeclarations]: Found specification of procedure bigMacCall
[2019-10-15 03:09:50,858 INFO  L130     BoogieDeclarations]: Found specification of procedure isIdle
[2019-10-15 03:09:50,858 INFO  L130     BoogieDeclarations]: Found specification of procedure randomSequenceOfActions
[2019-10-15 03:09:50,859 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest_Simple
[2019-10-15 03:09:50,859 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification1
[2019-10-15 03:09:50,859 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2019-10-15 03:09:50,866 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification3
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure isEmpty
[2019-10-15 03:09:50,867 INFO  L130     BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure areDoorsOpen
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloor
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator
[2019-10-15 03:09:50,868 INFO  L130     BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton
[2019-10-15 03:09:50,869 INFO  L130     BoogieDeclarations]: Found specification of procedure resetFloorButton
[2019-10-15 03:09:50,869 INFO  L130     BoogieDeclarations]: Found specification of procedure anyStopRequested
[2019-10-15 03:09:50,869 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty
[2019-10-15 03:09:50,869 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull
[2019-10-15 03:09:50,870 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection
[2019-10-15 03:09:50,870 INFO  L130     BoogieDeclarations]: Found specification of procedure continueInDirection
[2019-10-15 03:09:50,870 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty
[2019-10-15 03:09:50,870 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull
[2019-10-15 03:09:50,870 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure getReverseHeading
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure processWaitingOnFloor
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-15 03:09:50,871 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-15 03:09:50,872 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-15 03:09:57,306 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-15 03:09:57,306 INFO  L284             CfgBuilder]: Removed 10 assume(true) statements.
[2019-10-15 03:09:57,308 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:57 BoogieIcfgContainer
[2019-10-15 03:09:57,308 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-15 03:09:57,309 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-15 03:09:57,309 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-15 03:09:57,312 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-15 03:09:57,312 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:09:48" (1/3) ...
[2019-10-15 03:09:57,313 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bd9b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:57, skipping insertion in model container
[2019-10-15 03:09:57,313 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:50" (2/3) ...
[2019-10-15 03:09:57,314 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bd9b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:57, skipping insertion in model container
[2019-10-15 03:09:57,314 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:57" (3/3) ...
[2019-10-15 03:09:57,316 INFO  L109   eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c
[2019-10-15 03:09:57,327 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-15 03:09:57,338 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-15 03:09:57,351 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-15 03:09:57,384 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-15 03:09:57,384 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-15 03:09:57,384 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-15 03:09:57,385 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-15 03:09:57,385 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-15 03:09:57,385 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-15 03:09:57,385 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-15 03:09:57,385 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-15 03:09:57,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 642 states.
[2019-10-15 03:09:57,434 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-15 03:09:57,434 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:09:57,436 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]
[2019-10-15 03:09:57,438 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:09:57,444 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:09:57,445 INFO  L82        PathProgramCache]: Analyzing trace with hash -1816173478, now seen corresponding path program 1 times
[2019-10-15 03:09:57,455 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:09:57,455 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112775121]
[2019-10-15 03:09:57,455 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:09:57,456 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:09:57,456 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:09:57,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:09:58,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-15 03:09:58,433 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112775121]
[2019-10-15 03:09:58,434 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804747027]
[2019-10-15 03:09:58,434 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:09:59,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:09:59,198 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 2 conjunts are in the unsatisfiable core
[2019-10-15 03:09:59,213 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-15 03:09:59,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-15 03:09:59,285 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-15 03:09:59,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-15 03:09:59,469 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-15 03:09:59,469 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 13
[2019-10-15 03:09:59,469 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021311537]
[2019-10-15 03:09:59,476 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-15 03:09:59,476 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:09:59,491 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-15 03:09:59,492 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2019-10-15 03:09:59,494 INFO  L87              Difference]: Start difference. First operand 642 states. Second operand 4 states.
[2019-10-15 03:10:01,750 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:10:01,751 INFO  L93              Difference]: Finished difference Result 1860 states and 2815 transitions.
[2019-10-15 03:10:01,751 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-15 03:10:01,753 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 81
[2019-10-15 03:10:01,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:10:01,809 INFO  L225             Difference]: With dead ends: 1860
[2019-10-15 03:10:01,810 INFO  L226             Difference]: Without dead ends: 1346
[2019-10-15 03:10:01,837 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2019-10-15 03:10:01,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1346 states.
[2019-10-15 03:10:02,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1305.
[2019-10-15 03:10:02,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1305 states.
[2019-10-15 03:10:02,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1949 transitions.
[2019-10-15 03:10:02,139 INFO  L78                 Accepts]: Start accepts. Automaton has 1305 states and 1949 transitions. Word has length 81
[2019-10-15 03:10:02,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:10:02,141 INFO  L462      AbstractCegarLoop]: Abstraction has 1305 states and 1949 transitions.
[2019-10-15 03:10:02,141 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-15 03:10:02,141 INFO  L276                IsEmpty]: Start isEmpty. Operand 1305 states and 1949 transitions.
[2019-10-15 03:10:02,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-15 03:10:02,146 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:10:02,147 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]
[2019-10-15 03:10:02,378 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:10:02,378 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:10:02,379 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:10:02,379 INFO  L82        PathProgramCache]: Analyzing trace with hash 52336622, now seen corresponding path program 1 times
[2019-10-15 03:10:02,380 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:10:02,381 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778213687]
[2019-10-15 03:10:02,381 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:02,381 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:02,382 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:10:02,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:02,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-15 03:10:02,969 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778213687]
[2019-10-15 03:10:02,969 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:10:02,969 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2019-10-15 03:10:02,969 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398660238]
[2019-10-15 03:10:02,970 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-15 03:10:02,970 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:10:02,971 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-15 03:10:02,971 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2019-10-15 03:10:02,971 INFO  L87              Difference]: Start difference. First operand 1305 states and 1949 transitions. Second operand 10 states.
[2019-10-15 03:10:04,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:10:04,720 INFO  L93              Difference]: Finished difference Result 2584 states and 3891 transitions.
[2019-10-15 03:10:04,720 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2019-10-15 03:10:04,721 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 81
[2019-10-15 03:10:04,721 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:10:04,744 INFO  L225             Difference]: With dead ends: 2584
[2019-10-15 03:10:04,744 INFO  L226             Difference]: Without dead ends: 2581
[2019-10-15 03:10:04,747 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2019-10-15 03:10:04,751 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2581 states.
[2019-10-15 03:10:04,896 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2540.
[2019-10-15 03:10:04,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2540 states.
[2019-10-15 03:10:04,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3839 transitions.
[2019-10-15 03:10:04,919 INFO  L78                 Accepts]: Start accepts. Automaton has 2540 states and 3839 transitions. Word has length 81
[2019-10-15 03:10:04,920 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:10:04,920 INFO  L462      AbstractCegarLoop]: Abstraction has 2540 states and 3839 transitions.
[2019-10-15 03:10:04,920 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2019-10-15 03:10:04,921 INFO  L276                IsEmpty]: Start isEmpty. Operand 2540 states and 3839 transitions.
[2019-10-15 03:10:04,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-15 03:10:04,924 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:10:04,924 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]
[2019-10-15 03:10:04,925 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:10:04,925 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:10:04,925 INFO  L82        PathProgramCache]: Analyzing trace with hash 592414164, now seen corresponding path program 1 times
[2019-10-15 03:10:04,925 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:10:04,926 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943028386]
[2019-10-15 03:10:04,926 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:04,926 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:04,926 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:10:05,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:05,238 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-15 03:10:05,238 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943028386]
[2019-10-15 03:10:05,239 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620948397]
[2019-10-15 03:10:05,239 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:10:05,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:05,833 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core
[2019-10-15 03:10:05,846 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-15 03:10:05,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-15 03:10:05,875 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-15 03:10:06,103 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-15 03:10:06,104 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-15 03:10:06,104 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12
[2019-10-15 03:10:06,104 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837009308]
[2019-10-15 03:10:06,106 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-15 03:10:06,106 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:10:06,107 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-15 03:10:06,107 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2019-10-15 03:10:06,107 INFO  L87              Difference]: Start difference. First operand 2540 states and 3839 transitions. Second operand 3 states.
[2019-10-15 03:10:06,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:10:06,348 INFO  L93              Difference]: Finished difference Result 5884 states and 8964 transitions.
[2019-10-15 03:10:06,348 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-15 03:10:06,348 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 81
[2019-10-15 03:10:06,349 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:10:06,380 INFO  L225             Difference]: With dead ends: 5884
[2019-10-15 03:10:06,380 INFO  L226             Difference]: Without dead ends: 3375
[2019-10-15 03:10:06,394 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2019-10-15 03:10:06,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3375 states.
[2019-10-15 03:10:06,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 2528.
[2019-10-15 03:10:06,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2528 states.
[2019-10-15 03:10:06,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3813 transitions.
[2019-10-15 03:10:06,582 INFO  L78                 Accepts]: Start accepts. Automaton has 2528 states and 3813 transitions. Word has length 81
[2019-10-15 03:10:06,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:10:06,582 INFO  L462      AbstractCegarLoop]: Abstraction has 2528 states and 3813 transitions.
[2019-10-15 03:10:06,583 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-15 03:10:06,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 2528 states and 3813 transitions.
[2019-10-15 03:10:06,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2019-10-15 03:10:06,586 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:10:06,586 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]
[2019-10-15 03:10:06,805 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:10:06,805 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:10:06,806 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:10:06,806 INFO  L82        PathProgramCache]: Analyzing trace with hash 829375675, now seen corresponding path program 1 times
[2019-10-15 03:10:06,806 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:10:06,807 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317778717]
[2019-10-15 03:10:06,808 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:06,808 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:06,808 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:10:06,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:07,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-15 03:10:07,240 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317778717]
[2019-10-15 03:10:07,241 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569287175]
[2019-10-15 03:10:07,241 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:10:08,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:08,062 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core
[2019-10-15 03:10:08,070 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-15 03:10:08,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-15 03:10:08,287 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-15 03:10:08,434 INFO  L319       QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-15 03:10:08,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-15 03:10:08,573 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-15 03:10:08,573 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [11] total 20
[2019-10-15 03:10:08,574 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740946007]
[2019-10-15 03:10:08,575 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 11 states
[2019-10-15 03:10:08,575 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:10:08,575 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2019-10-15 03:10:08,576 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2019-10-15 03:10:08,576 INFO  L87              Difference]: Start difference. First operand 2528 states and 3813 transitions. Second operand 11 states.
[2019-10-15 03:10:16,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:10:16,832 INFO  L93              Difference]: Finished difference Result 7075 states and 10829 transitions.
[2019-10-15 03:10:16,833 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2019-10-15 03:10:16,833 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 82
[2019-10-15 03:10:16,834 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:10:16,880 INFO  L225             Difference]: With dead ends: 7075
[2019-10-15 03:10:16,881 INFO  L226             Difference]: Without dead ends: 4578
[2019-10-15 03:10:16,898 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506
[2019-10-15 03:10:16,904 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4578 states.
[2019-10-15 03:10:17,114 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4558.
[2019-10-15 03:10:17,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4558 states.
[2019-10-15 03:10:17,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 6708 transitions.
[2019-10-15 03:10:17,140 INFO  L78                 Accepts]: Start accepts. Automaton has 4558 states and 6708 transitions. Word has length 82
[2019-10-15 03:10:17,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:10:17,142 INFO  L462      AbstractCegarLoop]: Abstraction has 4558 states and 6708 transitions.
[2019-10-15 03:10:17,143 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2019-10-15 03:10:17,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 4558 states and 6708 transitions.
[2019-10-15 03:10:17,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2019-10-15 03:10:17,149 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:10:17,150 INFO  L380         BasicCegarLoop]: trace histogram [3, 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]
[2019-10-15 03:10:17,357 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-15 03:10:17,358 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:10:17,358 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:10:17,359 INFO  L82        PathProgramCache]: Analyzing trace with hash -2036417947, now seen corresponding path program 1 times
[2019-10-15 03:10:17,359 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:10:17,359 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748675822]
[2019-10-15 03:10:17,360 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:17,360 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:17,360 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:10:17,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:17,637 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 03:10:17,637 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748675822]
[2019-10-15 03:10:17,638 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:10:17,638 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2019-10-15 03:10:17,638 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418370375]
[2019-10-15 03:10:17,639 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-10-15 03:10:17,639 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:10:17,639 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-10-15 03:10:17,639 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2019-10-15 03:10:17,640 INFO  L87              Difference]: Start difference. First operand 4558 states and 6708 transitions. Second operand 7 states.
[2019-10-15 03:10:23,321 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-15 03:10:23,322 INFO  L93              Difference]: Finished difference Result 17513 states and 26878 transitions.
[2019-10-15 03:10:23,322 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2019-10-15 03:10:23,322 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 129
[2019-10-15 03:10:23,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-15 03:10:23,434 INFO  L225             Difference]: With dead ends: 17513
[2019-10-15 03:10:23,434 INFO  L226             Difference]: Without dead ends: 12986
[2019-10-15 03:10:23,475 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2019-10-15 03:10:23,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12986 states.
[2019-10-15 03:10:25,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12986 to 12725.
[2019-10-15 03:10:25,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 12725 states.
[2019-10-15 03:10:25,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19272 transitions.
[2019-10-15 03:10:25,208 INFO  L78                 Accepts]: Start accepts. Automaton has 12725 states and 19272 transitions. Word has length 129
[2019-10-15 03:10:25,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-15 03:10:25,209 INFO  L462      AbstractCegarLoop]: Abstraction has 12725 states and 19272 transitions.
[2019-10-15 03:10:25,209 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-10-15 03:10:25,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 12725 states and 19272 transitions.
[2019-10-15 03:10:25,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2019-10-15 03:10:25,217 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-15 03:10:25,217 INFO  L380         BasicCegarLoop]: trace histogram [3, 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 03:10:25,217 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-15 03:10:25,218 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-15 03:10:25,218 INFO  L82        PathProgramCache]: Analyzing trace with hash 226793804, now seen corresponding path program 1 times
[2019-10-15 03:10:25,218 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-15 03:10:25,218 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914709340]
[2019-10-15 03:10:25,219 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:25,219 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-15 03:10:25,219 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-15 03:10:25,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-15 03:10:25,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-15 03:10:25,521 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914709340]
[2019-10-15 03:10:25,521 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-15 03:10:25,521 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2019-10-15 03:10:25,521 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260669160]
[2019-10-15 03:10:25,522 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-15 03:10:25,522 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-15 03:10:25,522 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-15 03:10:25,523 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2019-10-15 03:10:25,523 INFO  L87              Difference]: Start difference. First operand 12725 states and 19272 transitions. Second operand 10 states.