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_spec2_productSimulator.cil.c


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


This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 23:04:17,841 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 23:04:17,844 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 23:04:17,863 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 23:04:17,864 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 23:04:17,866 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 23:04:17,868 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 23:04:17,877 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 23:04:17,882 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 23:04:17,886 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 23:04:17,887 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 23:04:17,889 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 23:04:17,889 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 23:04:17,891 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 23:04:17,894 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 23:04:17,895 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 23:04:17,897 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 23:04:17,898 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 23:04:17,899 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 23:04:17,904 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 23:04:17,908 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 23:04:17,911 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 23:04:17,914 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 23:04:17,915 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 23:04:17,917 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 23:04:17,918 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 23:04:17,918 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 23:04:17,920 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 23:04:17,921 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 23:04:17,923 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 23:04:17,923 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 23:04:17,925 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 23:04:17,926 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 23:04:17,926 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 23:04:17,928 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 23:04:17,928 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 23:04:17,929 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 23:04:17,929 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 23:04:17,929 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 23:04:17,930 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 23:04:17,931 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 23:04:17,932 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 23:04:17,967 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 23:04:17,970 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 23:04:17,972 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 23:04:17,972 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 23:04:17,972 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 23:04:17,973 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 23:04:17,973 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 23:04:17,973 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 23:04:17,976 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 23:04:17,976 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 23:04:17,977 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 23:04:17,977 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 23:04:17,977 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 23:04:17,977 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 23:04:17,977 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 23:04:17,978 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 23:04:17,978 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 23:04:17,980 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 23:04:17,980 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 23:04:17,981 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 23:04:17,981 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 23:04:17,981 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 23:04:17,981 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 23:04:17,982 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 23:04:17,982 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 23:04:17,982 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 23:04:17,982 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 23:04:17,982 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 23:04:17,983 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-13 23:04:18,317 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 23:04:18,338 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 23:04:18,343 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 23:04:18,345 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 23:04:18,345 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 23:04:18,346 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c
[2019-10-13 23:04:18,423 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c117fda5/e18ec97475a446968091fb2c68b758e5/FLAG29bc0f59b
[2019-10-13 23:04:19,100 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 23:04:19,101 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c
[2019-10-13 23:04:19,129 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c117fda5/e18ec97475a446968091fb2c68b758e5/FLAG29bc0f59b
[2019-10-13 23:04:19,224 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c117fda5/e18ec97475a446968091fb2c68b758e5
[2019-10-13 23:04:19,236 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 23:04:19,237 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 23:04:19,238 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 23:04:19,239 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 23:04:19,244 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 23:04:19,245 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:04:19" (1/1) ...
[2019-10-13 23:04:19,247 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39284e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:19, skipping insertion in model container
[2019-10-13 23:04:19,248 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:04:19" (1/1) ...
[2019-10-13 23:04:19,256 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 23:04:19,342 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 23:04:20,167 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:04:20,195 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 23:04:20,373 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:04:20,481 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 23:04:20,481 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20 WrapperNode
[2019-10-13 23:04:20,481 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 23:04:20,482 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 23:04:20,482 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 23:04:20,482 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 23:04:20,493 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,494 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,535 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,536 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,619 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,644 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,656 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
[2019-10-13 23:04:20,676 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 23:04:20,677 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 23:04:20,677 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 23:04:20,677 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 23:04:20,682 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 23:04:20,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 23:04:20,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 23:04:20,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2019-10-13 23:04:20,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWeight
[2019-10-13 23:04:20,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure getOrigin
[2019-10-13 23:04:20,771 INFO  L138     BoogieDeclarations]: Found implementation of procedure getDestination
[2019-10-13 23:04:20,772 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2019-10-13 23:04:20,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure initFloors
[2019-10-13 23:04:20,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure isFloorCalling
[2019-10-13 23:04:20,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetCallOnFloor
[2019-10-13 23:04:20,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure callOnFloor
[2019-10-13 23:04:20,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPersonOnFloor
[2019-10-13 23:04:20,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure initPersonOnFloor
[2019-10-13 23:04:20,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure removePersonFromFloor
[2019-10-13 23:04:20,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure isTopFloor
[2019-10-13 23:04:20,776 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec1
[2019-10-13 23:04:20,778 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec14
[2019-10-13 23:04:20,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2019-10-13 23:04:20,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2019-10-13 23:04:20,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3
[2019-10-13 23:04:20,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4
[2019-10-13 23:04:20,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2019-10-13 23:04:20,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07
[2019-10-13 23:04:20,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure bobCall
[2019-10-13 23:04:20,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure aliceCall
[2019-10-13 23:04:20,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure angelinaCall
[2019-10-13 23:04:20,781 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckCall
[2019-10-13 23:04:20,781 INFO  L138     BoogieDeclarations]: Found implementation of procedure monicaCall
[2019-10-13 23:04:20,781 INFO  L138     BoogieDeclarations]: Found implementation of procedure bigMacCall
[2019-10-13 23:04:20,781 INFO  L138     BoogieDeclarations]: Found implementation of procedure threeTS
[2019-10-13 23:04:20,781 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest_Simple
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification1
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification3
[2019-10-13 23:04:20,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2019-10-13 23:04:20,783 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2019-10-13 23:04:20,784 INFO  L138     BoogieDeclarations]: Found implementation of procedure initTopDown
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure initBottomUp
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked__before__overloaded
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked__role__overloaded
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight
[2019-10-13 23:04:20,785 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator__role__weight
[2019-10-13 23:04:20,786 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator
[2019-10-13 23:04:20,786 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight
[2019-10-13 23:04:20,786 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__role__weight
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__role__empty
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetFloorButton
[2019-10-13 23:04:20,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentFloorID
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure areDoorsOpen
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentHeading
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEmpty
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure anyStopRequested
[2019-10-13 23:04:20,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure isIdle
[2019-10-13 23:04:20,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull
[2019-10-13 23:04:20,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__twothirdsfull
[2019-10-13 23:04:20,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor
[2019-10-13 23:04:20,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__executivefloor
[2019-10-13 23:04:20,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection
[2019-10-13 23:04:20,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed
[2019-10-13 23:04:20,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure continueInDirection
[2019-10-13 23:04:20,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull
[2019-10-13 23:04:20,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__twothirdsfull
[2019-10-13 23:04:20,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor
[2019-10-13 23:04:20,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__executivefloor
[2019-10-13 23:04:20,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor
[2019-10-13 23:04:20,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure getReverseHeading
[2019-10-13 23:04:20,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor
[2019-10-13 23:04:20,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded
[2019-10-13 23:04:20,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift__role__overloaded
[2019-10-13 23:04:20,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2019-10-13 23:04:20,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState__before__overloaded
[2019-10-13 23:04:20,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState__role__overloaded
[2019-10-13 23:04:20,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState
[2019-10-13 23:04:20,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection
[2019-10-13 23:04:20,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling
[2019-10-13 23:04:20,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloor
[2019-10-13 23:04:20,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 23:04:20,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 23:04:20,795 INFO  L130     BoogieDeclarations]: Found specification of procedure getWeight
[2019-10-13 23:04:20,795 INFO  L130     BoogieDeclarations]: Found specification of procedure getOrigin
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure getDestination
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isFloorCalling
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure resetCallOnFloor
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure callOnFloor
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isPersonOnFloor
[2019-10-13 23:04:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure initPersonOnFloor
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure removePersonFromFloor
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure isTopFloor
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure initFloors
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure printState
[2019-10-13 23:04:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure initTopDown
[2019-10-13 23:04:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure initBottomUp
[2019-10-13 23:04:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure spec1
[2019-10-13 23:04:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure spec14
[2019-10-13 23:04:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure areDoorsOpen
[2019-10-13 23:04:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentFloorID
[2019-10-13 23:04:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2019-10-13 23:04:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2019-10-13 23:04:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3
[2019-10-13 23:04:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4
[2019-10-13 23:04:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure bigMacCall
[2019-10-13 23:04:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2019-10-13 23:04:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure get_nondetMinMax07
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure bobCall
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure aliceCall
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure angelinaCall
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckCall
[2019-10-13 23:04:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure monicaCall
[2019-10-13 23:04:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure threeTS
[2019-10-13 23:04:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure isIdle
[2019-10-13 23:04:20,803 INFO  L130     BoogieDeclarations]: Found specification of procedure randomSequenceOfActions
[2019-10-13 23:04:20,806 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest_Simple
[2019-10-13 23:04:20,806 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification1
[2019-10-13 23:04:20,807 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2019-10-13 23:04:20,807 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification3
[2019-10-13 23:04:20,808 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2019-10-13 23:04:20,808 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2019-10-13 23:04:20,808 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2019-10-13 23:04:20,808 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2019-10-13 23:04:20,808 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2019-10-13 23:04:20,809 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 23:04:20,815 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-13 23:04:20,816 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2019-10-13 23:04:20,817 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 23:04:20,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2019-10-13 23:04:20,817 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2019-10-13 23:04:20,817 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 23:04:20,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2019-10-13 23:04:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isEmpty
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloor
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked__before__overloaded
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked__role__overloaded
[2019-10-13 23:04:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator__before__weight
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator__role__weight
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__role__weight
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__role__empty
[2019-10-13 23:04:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure resetFloorButton
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentHeading
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure anyStopRequested
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__twothirdsfull
[2019-10-13 23:04:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__executivefloor
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure continueInDirection
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__twothirdsfull
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor
[2019-10-13 23:04:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__executivefloor
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure getReverseHeading
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure processWaitingOnFloor
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift__role__overloaded
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure printState__before__overloaded
[2019-10-13 23:04:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure printState__role__overloaded
[2019-10-13 23:04:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection
[2019-10-13 23:04:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 23:04:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-13 23:04:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 23:04:26,118 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 23:04:26,119 INFO  L284             CfgBuilder]: Removed 10 assume(true) statements.
[2019-10-13 23:04:26,121 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:04:26 BoogieIcfgContainer
[2019-10-13 23:04:26,121 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 23:04:26,122 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 23:04:26,123 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 23:04:26,127 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 23:04:26,128 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:04:19" (1/3) ...
[2019-10-13 23:04:26,129 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699f9249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:04:26, skipping insertion in model container
[2019-10-13 23:04:26,129 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:04:20" (2/3) ...
[2019-10-13 23:04:26,129 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699f9249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:04:26, skipping insertion in model container
[2019-10-13 23:04:26,129 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:04:26" (3/3) ...
[2019-10-13 23:04:26,131 INFO  L109   eAbstractionObserver]: Analyzing ICFG elevator_spec2_productSimulator.cil.c
[2019-10-13 23:04:26,141 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 23:04:26,151 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 23:04:26,164 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 23:04:26,216 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 23:04:26,217 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 23:04:26,217 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 23:04:26,217 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 23:04:26,217 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 23:04:26,217 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 23:04:26,217 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 23:04:26,217 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 23:04:26,263 INFO  L276                IsEmpty]: Start isEmpty. Operand 705 states.
[2019-10-13 23:04:26,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2019-10-13 23:04:26,290 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:26,291 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:26,293 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:26,300 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:26,300 INFO  L82        PathProgramCache]: Analyzing trace with hash -1787488430, now seen corresponding path program 1 times
[2019-10-13 23:04:26,310 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:26,310 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831939305]
[2019-10-13 23:04:26,310 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:26,311 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:26,311 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:26,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:26,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:26,961 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831939305]
[2019-10-13 23:04:26,962 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:26,963 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-13 23:04:26,963 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320051012]
[2019-10-13 23:04:26,972 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-13 23:04:26,972 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:26,990 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-13 23:04:26,991 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2019-10-13 23:04:26,993 INFO  L87              Difference]: Start difference. First operand 705 states. Second operand 6 states.
[2019-10-13 23:04:27,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:27,237 INFO  L93              Difference]: Finished difference Result 1115 states and 1628 transitions.
[2019-10-13 23:04:27,238 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-13 23:04:27,240 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 101
[2019-10-13 23:04:27,241 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:27,280 INFO  L225             Difference]: With dead ends: 1115
[2019-10-13 23:04:27,281 INFO  L226             Difference]: Without dead ends: 563
[2019-10-13 23:04:27,290 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-10-13 23:04:27,311 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 563 states.
[2019-10-13 23:04:27,414 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563.
[2019-10-13 23:04:27,415 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 563 states.
[2019-10-13 23:04:27,427 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 812 transitions.
[2019-10-13 23:04:27,430 INFO  L78                 Accepts]: Start accepts. Automaton has 563 states and 812 transitions. Word has length 101
[2019-10-13 23:04:27,431 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:27,432 INFO  L462      AbstractCegarLoop]: Abstraction has 563 states and 812 transitions.
[2019-10-13 23:04:27,432 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-13 23:04:27,432 INFO  L276                IsEmpty]: Start isEmpty. Operand 563 states and 812 transitions.
[2019-10-13 23:04:27,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2019-10-13 23:04:27,442 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:27,442 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:27,443 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:27,444 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:27,445 INFO  L82        PathProgramCache]: Analyzing trace with hash 72093283, now seen corresponding path program 1 times
[2019-10-13 23:04:27,446 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:27,446 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000513830]
[2019-10-13 23:04:27,446 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:27,446 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:27,446 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:27,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:27,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:27,861 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000513830]
[2019-10-13 23:04:27,861 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:27,861 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 23:04:27,862 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601614445]
[2019-10-13 23:04:27,863 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 23:04:27,864 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:27,864 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 23:04:27,864 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 23:04:27,865 INFO  L87              Difference]: Start difference. First operand 563 states and 812 transitions. Second operand 4 states.
[2019-10-13 23:04:29,147 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:29,147 INFO  L93              Difference]: Finished difference Result 1581 states and 2316 transitions.
[2019-10-13 23:04:29,148 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 23:04:29,148 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 103
[2019-10-13 23:04:29,149 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:29,163 INFO  L225             Difference]: With dead ends: 1581
[2019-10-13 23:04:29,164 INFO  L226             Difference]: Without dead ends: 1078
[2019-10-13 23:04:29,174 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 23:04:29,183 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1078 states.
[2019-10-13 23:04:29,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1065.
[2019-10-13 23:04:29,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1065 states.
[2019-10-13 23:04:29,286 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1543 transitions.
[2019-10-13 23:04:29,289 INFO  L78                 Accepts]: Start accepts. Automaton has 1065 states and 1543 transitions. Word has length 103
[2019-10-13 23:04:29,292 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:29,292 INFO  L462      AbstractCegarLoop]: Abstraction has 1065 states and 1543 transitions.
[2019-10-13 23:04:29,293 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 23:04:29,293 INFO  L276                IsEmpty]: Start isEmpty. Operand 1065 states and 1543 transitions.
[2019-10-13 23:04:29,300 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2019-10-13 23:04:29,301 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:29,301 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:29,302 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:29,302 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:29,302 INFO  L82        PathProgramCache]: Analyzing trace with hash -1256887126, now seen corresponding path program 1 times
[2019-10-13 23:04:29,302 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:29,303 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769010131]
[2019-10-13 23:04:29,303 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:29,303 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:29,303 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:29,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:29,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:29,726 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769010131]
[2019-10-13 23:04:29,726 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:29,726 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2019-10-13 23:04:29,726 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778747109]
[2019-10-13 23:04:29,728 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-10-13 23:04:29,729 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:29,729 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-10-13 23:04:29,729 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2019-10-13 23:04:29,729 INFO  L87              Difference]: Start difference. First operand 1065 states and 1543 transitions. Second operand 9 states.
[2019-10-13 23:04:36,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:36,526 INFO  L93              Difference]: Finished difference Result 2947 states and 4351 transitions.
[2019-10-13 23:04:36,527 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2019-10-13 23:04:36,527 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 104
[2019-10-13 23:04:36,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:36,549 INFO  L225             Difference]: With dead ends: 2947
[2019-10-13 23:04:36,550 INFO  L226             Difference]: Without dead ends: 1975
[2019-10-13 23:04:36,558 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2019-10-13 23:04:36,562 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1975 states.
[2019-10-13 23:04:36,660 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1926.
[2019-10-13 23:04:36,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1926 states.
[2019-10-13 23:04:36,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2746 transitions.
[2019-10-13 23:04:36,675 INFO  L78                 Accepts]: Start accepts. Automaton has 1926 states and 2746 transitions. Word has length 104
[2019-10-13 23:04:36,676 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:36,676 INFO  L462      AbstractCegarLoop]: Abstraction has 1926 states and 2746 transitions.
[2019-10-13 23:04:36,676 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-10-13 23:04:36,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 1926 states and 2746 transitions.
[2019-10-13 23:04:36,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2019-10-13 23:04:36,685 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:36,685 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:36,686 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:36,686 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:36,686 INFO  L82        PathProgramCache]: Analyzing trace with hash -263383926, now seen corresponding path program 1 times
[2019-10-13 23:04:36,687 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:36,687 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895892448]
[2019-10-13 23:04:36,687 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:36,687 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:36,687 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:36,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:36,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:36,901 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895892448]
[2019-10-13 23:04:36,901 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:36,901 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 23:04:36,901 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870142939]
[2019-10-13 23:04:36,902 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 23:04:36,902 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:36,902 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 23:04:36,903 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 23:04:36,903 INFO  L87              Difference]: Start difference. First operand 1926 states and 2746 transitions. Second operand 5 states.
[2019-10-13 23:04:39,451 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:39,452 INFO  L93              Difference]: Finished difference Result 5719 states and 8325 transitions.
[2019-10-13 23:04:39,452 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 23:04:39,452 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 105
[2019-10-13 23:04:39,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:39,483 INFO  L225             Difference]: With dead ends: 5719
[2019-10-13 23:04:39,484 INFO  L226             Difference]: Without dead ends: 3888
[2019-10-13 23:04:39,493 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2019-10-13 23:04:39,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3888 states.
[2019-10-13 23:04:39,690 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3698.
[2019-10-13 23:04:39,690 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3698 states.
[2019-10-13 23:04:39,714 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5353 transitions.
[2019-10-13 23:04:39,716 INFO  L78                 Accepts]: Start accepts. Automaton has 3698 states and 5353 transitions. Word has length 105
[2019-10-13 23:04:39,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:39,716 INFO  L462      AbstractCegarLoop]: Abstraction has 3698 states and 5353 transitions.
[2019-10-13 23:04:39,716 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 23:04:39,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 3698 states and 5353 transitions.
[2019-10-13 23:04:39,719 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2019-10-13 23:04:39,720 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:39,720 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:39,720 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:39,720 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:39,721 INFO  L82        PathProgramCache]: Analyzing trace with hash 423304977, now seen corresponding path program 1 times
[2019-10-13 23:04:39,721 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:39,721 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837603763]
[2019-10-13 23:04:39,721 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:39,722 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:39,722 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:39,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:39,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:39,888 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837603763]
[2019-10-13 23:04:39,888 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:39,888 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 23:04:39,889 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658874687]
[2019-10-13 23:04:39,889 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 23:04:39,890 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:39,890 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 23:04:39,890 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 23:04:39,890 INFO  L87              Difference]: Start difference. First operand 3698 states and 5353 transitions. Second operand 4 states.
[2019-10-13 23:04:42,393 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:42,393 INFO  L93              Difference]: Finished difference Result 10893 states and 15970 transitions.
[2019-10-13 23:04:42,394 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 23:04:42,394 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 106
[2019-10-13 23:04:42,395 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:42,460 INFO  L225             Difference]: With dead ends: 10893
[2019-10-13 23:04:42,460 INFO  L226             Difference]: Without dead ends: 7292
[2019-10-13 23:04:42,483 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 23:04:42,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7292 states.
[2019-10-13 23:04:42,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7292 to 7061.
[2019-10-13 23:04:42,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7061 states.
[2019-10-13 23:04:42,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 10296 transitions.
[2019-10-13 23:04:42,970 INFO  L78                 Accepts]: Start accepts. Automaton has 7061 states and 10296 transitions. Word has length 106
[2019-10-13 23:04:42,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:42,970 INFO  L462      AbstractCegarLoop]: Abstraction has 7061 states and 10296 transitions.
[2019-10-13 23:04:42,970 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 23:04:42,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 7061 states and 10296 transitions.
[2019-10-13 23:04:42,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2019-10-13 23:04:42,974 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:42,975 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:42,975 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:42,975 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:42,975 INFO  L82        PathProgramCache]: Analyzing trace with hash 235828396, now seen corresponding path program 1 times
[2019-10-13 23:04:42,976 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:42,976 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583288797]
[2019-10-13 23:04:42,976 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:42,976 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:42,976 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:43,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:43,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:43,144 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583288797]
[2019-10-13 23:04:43,145 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:43,145 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 23:04:43,145 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127708865]
[2019-10-13 23:04:43,146 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 23:04:43,146 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:43,146 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 23:04:43,147 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 23:04:43,147 INFO  L87              Difference]: Start difference. First operand 7061 states and 10296 transitions. Second operand 4 states.
[2019-10-13 23:04:45,925 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:04:45,926 INFO  L93              Difference]: Finished difference Result 21070 states and 31128 transitions.
[2019-10-13 23:04:45,926 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 23:04:45,926 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 107
[2019-10-13 23:04:45,927 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:04:46,062 INFO  L225             Difference]: With dead ends: 21070
[2019-10-13 23:04:46,062 INFO  L226             Difference]: Without dead ends: 14108
[2019-10-13 23:04:46,105 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 23:04:46,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14108 states.
[2019-10-13 23:04:47,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14108 to 13788.
[2019-10-13 23:04:47,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 13788 states.
[2019-10-13 23:04:47,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13788 states to 13788 states and 20256 transitions.
[2019-10-13 23:04:47,776 INFO  L78                 Accepts]: Start accepts. Automaton has 13788 states and 20256 transitions. Word has length 107
[2019-10-13 23:04:47,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:04:47,778 INFO  L462      AbstractCegarLoop]: Abstraction has 13788 states and 20256 transitions.
[2019-10-13 23:04:47,778 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 23:04:47,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 13788 states and 20256 transitions.
[2019-10-13 23:04:47,781 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2019-10-13 23:04:47,782 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:04:47,782 INFO  L380         BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:04:47,782 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:04:47,782 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:04:47,783 INFO  L82        PathProgramCache]: Analyzing trace with hash -1280974413, now seen corresponding path program 1 times
[2019-10-13 23:04:47,783 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:04:47,783 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470107260]
[2019-10-13 23:04:47,783 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:47,783 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:04:47,784 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:04:47,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:04:47,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2019-10-13 23:04:47,953 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470107260]
[2019-10-13 23:04:47,953 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:04:47,953 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 23:04:47,953 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297991797]
[2019-10-13 23:04:47,954 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 23:04:47,954 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:04:47,954 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 23:04:47,954 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 23:04:47,955 INFO  L87              Difference]: Start difference. First operand 13788 states and 20256 transitions. Second operand 4 states.