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-f4eb214f-m
[2019-10-13 23:05:17,918 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 23:05:17,921 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 23:05:17,942 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 23:05:17,942 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 23:05:17,945 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 23:05:17,947 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 23:05:17,959 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 23:05:17,961 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 23:05:17,963 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 23:05:17,965 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 23:05:17,966 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 23:05:17,967 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 23:05:17,970 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 23:05:17,973 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 23:05:17,975 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 23:05:17,977 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 23:05:17,979 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 23:05:17,981 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 23:05:17,987 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 23:05:17,992 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 23:05:17,995 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 23:05:17,998 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 23:05:17,999 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 23:05:18,002 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 23:05:18,002 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 23:05:18,003 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 23:05:18,005 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 23:05:18,006 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 23:05:18,007 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 23:05:18,007 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 23:05:18,008 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 23:05:18,009 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 23:05:18,010 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 23:05:18,011 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 23:05:18,012 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 23:05:18,012 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 23:05:18,013 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 23:05:18,013 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 23:05:18,014 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 23:05:18,015 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 23:05:18,016 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 23:05:18,036 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 23:05:18,036 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 23:05:18,038 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 23:05:18,038 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 23:05:18,039 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 23:05:18,039 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 23:05:18,039 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 23:05:18,040 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 23:05:18,040 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 23:05:18,040 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 23:05:18,041 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 23:05:18,041 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 23:05:18,042 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 23:05:18,042 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 23:05:18,042 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 23:05:18,042 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 23:05:18,043 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 23:05:18,043 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 23:05:18,043 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 23:05:18,043 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 23:05:18,043 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 23:05:18,044 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 23:05:18,044 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 23:05:18,044 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 23:05:18,044 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 23:05:18,044 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 23:05:18,045 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 23:05:18,045 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 23:05:18,045 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-13 23:05:18,359 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 23:05:18,376 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 23:05:18,380 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 23:05:18,382 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 23:05:18,382 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 23:05:18,383 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c
[2019-10-13 23:05:18,466 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15770fb85/0a11f3a7fc9a4e3983fddf84b78c6554/FLAG21bf80ba9
[2019-10-13 23:05:19,124 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 23:05:19,128 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c
[2019-10-13 23:05:19,153 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15770fb85/0a11f3a7fc9a4e3983fddf84b78c6554/FLAG21bf80ba9
[2019-10-13 23:05:19,317 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15770fb85/0a11f3a7fc9a4e3983fddf84b78c6554
[2019-10-13 23:05:19,331 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 23:05:19,332 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 23:05:19,333 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 23:05:19,333 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 23:05:19,337 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 23:05:19,338 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:19" (1/1) ...
[2019-10-13 23:05:19,341 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e5469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:19, skipping insertion in model container
[2019-10-13 23:05:19,341 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:19" (1/1) ...
[2019-10-13 23:05:19,348 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 23:05:19,434 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 23:05:20,209 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:05:20,237 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 23:05:20,383 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 23:05:20,498 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 23:05:20,499 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20 WrapperNode
[2019-10-13 23:05:20,500 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 23:05:20,501 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 23:05:20,501 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 23:05:20,501 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 23:05:20,516 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,516 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,579 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,579 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,665 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,690 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,700 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (1/1) ...
[2019-10-13 23:05:20,725 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 23:05:20,728 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 23:05:20,728 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 23:05:20,728 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 23:05:20,735 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (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 23:05:20,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 23:05:20,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 23:05:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2019-10-13 23:05:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec1
[2019-10-13 23:05:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure spec14
[2019-10-13 23:05:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2019-10-13 23:05:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2019-10-13 23:05:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2019-10-13 23:05:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2019-10-13 23:05:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2019-10-13 23:05:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2019-10-13 23:05:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2019-10-13 23:05:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2019-10-13 23:05:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2019-10-13 23:05:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2019-10-13 23:05:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2019-10-13 23:05:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2019-10-13 23:05:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2
[2019-10-13 23:05:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWeight
[2019-10-13 23:05:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure getOrigin
[2019-10-13 23:05:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure getDestination
[2019-10-13 23:05:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure initFloors
[2019-10-13 23:05:20,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure isFloorCalling
[2019-10-13 23:05:20,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetCallOnFloor
[2019-10-13 23:05:20,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure callOnFloor
[2019-10-13 23:05:20,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPersonOnFloor
[2019-10-13 23:05:20,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure initPersonOnFloor
[2019-10-13 23:05:20,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure removePersonFromFloor
[2019-10-13 23:05:20,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure isTopFloor
[2019-10-13 23:05:20,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2019-10-13 23:05:20,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07
[2019-10-13 23:05:20,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure bobCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure aliceCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure angelinaCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure monicaCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure bigMacCall
[2019-10-13 23:05:20,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure threeTS
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest_Simple
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification1
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2019-10-13 23:05:20,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification3
[2019-10-13 23:05:20,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2019-10-13 23:05:20,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2019-10-13 23:05:20,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 23:05:20,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure initTopDown
[2019-10-13 23:05:20,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure initBottomUp
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure isBlocked
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure enterElevator
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight
[2019-10-13 23:05:20,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure leaveElevator
[2019-10-13 23:05:20,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton
[2019-10-13 23:05:20,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure resetFloorButton
[2019-10-13 23:05:20,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentFloorID
[2019-10-13 23:05:20,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure areDoorsOpen
[2019-10-13 23:05:20,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed
[2019-10-13 23:05:20,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure getCurrentHeading
[2019-10-13 23:05:20,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEmpty
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure anyStopRequested
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isIdle
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection
[2019-10-13 23:05:20,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed
[2019-10-13 23:05:20,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure continueInDirection
[2019-10-13 23:05:20,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty
[2019-10-13 23:05:20,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull
[2019-10-13 23:05:20,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor
[2019-10-13 23:05:20,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure getReverseHeading
[2019-10-13 23:05:20,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor
[2019-10-13 23:05:20,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor
[2019-10-13 23:05:20,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2019-10-13 23:05:20,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor
[2019-10-13 23:05:20,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure printState
[2019-10-13 23:05:20,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection
[2019-10-13 23:05:20,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling
[2019-10-13 23:05:20,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure isExecutiveFloor
[2019-10-13 23:05:20,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 23:05:20,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 23:05:20,818 INFO  L130     BoogieDeclarations]: Found specification of procedure getOrigin
[2019-10-13 23:05:20,818 INFO  L130     BoogieDeclarations]: Found specification of procedure initPersonOnFloor
[2019-10-13 23:05:20,818 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2019-10-13 23:05:20,819 INFO  L130     BoogieDeclarations]: Found specification of procedure isBlocked
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure printState
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure initTopDown
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure initBottomUp
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure spec1
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure spec14
[2019-10-13 23:05:20,820 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2019-10-13 23:05:20,821 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-10-13 23:05:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-10-13 23:05:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2019-10-13 23:05:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-13 23:05:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-13 23:05:20,822 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2019-10-13 23:05:20,823 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed
[2019-10-13 23:05:20,824 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentFloorID
[2019-10-13 23:05:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure getCurrentHeading
[2019-10-13 23:05:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2019-10-13 23:05:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2
[2019-10-13 23:05:20,825 INFO  L130     BoogieDeclarations]: Found specification of procedure getWeight
[2019-10-13 23:05:20,826 INFO  L130     BoogieDeclarations]: Found specification of procedure getDestination
[2019-10-13 23:05:20,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isFloorCalling
[2019-10-13 23:05:20,826 INFO  L130     BoogieDeclarations]: Found specification of procedure resetCallOnFloor
[2019-10-13 23:05:20,826 INFO  L130     BoogieDeclarations]: Found specification of procedure callOnFloor
[2019-10-13 23:05:20,828 INFO  L130     BoogieDeclarations]: Found specification of procedure isPersonOnFloor
[2019-10-13 23:05:20,828 INFO  L130     BoogieDeclarations]: Found specification of procedure removePersonFromFloor
[2019-10-13 23:05:20,828 INFO  L130     BoogieDeclarations]: Found specification of procedure isTopFloor
[2019-10-13 23:05:20,828 INFO  L130     BoogieDeclarations]: Found specification of procedure initFloors
[2019-10-13 23:05:20,829 INFO  L130     BoogieDeclarations]: Found specification of procedure bobCall
[2019-10-13 23:05:20,829 INFO  L130     BoogieDeclarations]: Found specification of procedure threeTS
[2019-10-13 23:05:20,829 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2019-10-13 23:05:20,829 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2019-10-13 23:05:20,830 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-10-13 23:05:20,830 INFO  L130     BoogieDeclarations]: Found specification of procedure get_nondetMinMax07
[2019-10-13 23:05:20,834 INFO  L130     BoogieDeclarations]: Found specification of procedure aliceCall
[2019-10-13 23:05:20,834 INFO  L130     BoogieDeclarations]: Found specification of procedure angelinaCall
[2019-10-13 23:05:20,834 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckCall
[2019-10-13 23:05:20,834 INFO  L130     BoogieDeclarations]: Found specification of procedure monicaCall
[2019-10-13 23:05:20,834 INFO  L130     BoogieDeclarations]: Found specification of procedure bigMacCall
[2019-10-13 23:05:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure isIdle
[2019-10-13 23:05:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure randomSequenceOfActions
[2019-10-13 23:05:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest_Simple
[2019-10-13 23:05:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification1
[2019-10-13 23:05:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2019-10-13 23:05:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification3
[2019-10-13 23:05:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2019-10-13 23:05:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2019-10-13 23:05:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 23:05:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2019-10-13 23:05:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator
[2019-10-13 23:05:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure isEmpty
[2019-10-13 23:05:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed
[2019-10-13 23:05:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure areDoorsOpen
[2019-10-13 23:05:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling
[2019-10-13 23:05:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure isExecutiveFloor
[2019-10-13 23:05:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base
[2019-10-13 23:05:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure leaveElevator
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure resetFloorButton
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure anyStopRequested
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty
[2019-10-13 23:05:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedInDirection
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure continueInDirection
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure getReverseHeading
[2019-10-13 23:05:20,848 INFO  L130     BoogieDeclarations]: Found specification of procedure processWaitingOnFloor
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-13 23:05:20,849 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 23:05:25,919 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 23:05:25,920 INFO  L284             CfgBuilder]: Removed 10 assume(true) statements.
[2019-10-13 23:05:25,922 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:25 BoogieIcfgContainer
[2019-10-13 23:05:25,923 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 23:05:25,924 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 23:05:25,924 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 23:05:25,928 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 23:05:25,928 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:05:19" (1/3) ...
[2019-10-13 23:05:25,929 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc6264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:25, skipping insertion in model container
[2019-10-13 23:05:25,929 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:20" (2/3) ...
[2019-10-13 23:05:25,930 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc6264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:25, skipping insertion in model container
[2019-10-13 23:05:25,930 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:25" (3/3) ...
[2019-10-13 23:05:25,934 INFO  L109   eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c
[2019-10-13 23:05:25,945 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 23:05:25,958 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 23:05:25,970 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 23:05:26,020 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 23:05:26,020 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 23:05:26,020 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 23:05:26,020 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 23:05:26,020 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 23:05:26,020 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 23:05:26,020 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 23:05:26,020 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 23:05:26,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 642 states.
[2019-10-13 23:05:26,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-13 23:05:26,065 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:26,066 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]
[2019-10-13 23:05:26,069 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:26,075 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:26,075 INFO  L82        PathProgramCache]: Analyzing trace with hash -1816173478, now seen corresponding path program 1 times
[2019-10-13 23:05:26,085 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:26,085 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686947422]
[2019-10-13 23:05:26,086 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:26,086 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:26,086 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:26,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:26,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 23:05:26,752 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686947422]
[2019-10-13 23:05:26,753 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034901231]
[2019-10-13 23:05:26,753 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:27,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:27,431 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 2 conjunts are in the unsatisfiable core
[2019-10-13 23:05:27,461 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 23:05:27,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 23:05:27,534 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 23:05:27,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-13 23:05:27,649 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-13 23:05:27,650 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 13
[2019-10-13 23:05:27,650 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187982545]
[2019-10-13 23:05:27,658 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 23:05:27,659 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:27,673 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 23:05:27,676 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2019-10-13 23:05:27,678 INFO  L87              Difference]: Start difference. First operand 642 states. Second operand 4 states.
[2019-10-13 23:05:29,219 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:29,219 INFO  L93              Difference]: Finished difference Result 1860 states and 2815 transitions.
[2019-10-13 23:05:29,220 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 23:05:29,222 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 81
[2019-10-13 23:05:29,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:29,254 INFO  L225             Difference]: With dead ends: 1860
[2019-10-13 23:05:29,254 INFO  L226             Difference]: Without dead ends: 1346
[2019-10-13 23:05:29,265 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2019-10-13 23:05:29,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1346 states.
[2019-10-13 23:05:29,446 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1305.
[2019-10-13 23:05:29,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1305 states.
[2019-10-13 23:05:29,464 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1949 transitions.
[2019-10-13 23:05:29,467 INFO  L78                 Accepts]: Start accepts. Automaton has 1305 states and 1949 transitions. Word has length 81
[2019-10-13 23:05:29,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:29,468 INFO  L462      AbstractCegarLoop]: Abstraction has 1305 states and 1949 transitions.
[2019-10-13 23:05:29,468 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 23:05:29,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 1305 states and 1949 transitions.
[2019-10-13 23:05:29,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-13 23:05:29,474 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:29,474 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]
[2019-10-13 23:05:29,683 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:29,683 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:29,684 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:29,684 INFO  L82        PathProgramCache]: Analyzing trace with hash 52336622, now seen corresponding path program 1 times
[2019-10-13 23:05:29,685 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:29,685 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427644516]
[2019-10-13 23:05:29,685 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:29,686 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:29,686 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:29,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:30,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 23:05:30,100 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427644516]
[2019-10-13 23:05:30,101 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:05:30,101 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2019-10-13 23:05:30,101 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498622463]
[2019-10-13 23:05:30,103 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-13 23:05:30,103 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:30,103 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-13 23:05:30,104 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2019-10-13 23:05:30,104 INFO  L87              Difference]: Start difference. First operand 1305 states and 1949 transitions. Second operand 10 states.
[2019-10-13 23:05:31,273 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:31,274 INFO  L93              Difference]: Finished difference Result 2584 states and 3891 transitions.
[2019-10-13 23:05:31,275 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2019-10-13 23:05:31,275 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 81
[2019-10-13 23:05:31,276 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:31,305 INFO  L225             Difference]: With dead ends: 2584
[2019-10-13 23:05:31,305 INFO  L226             Difference]: Without dead ends: 2581
[2019-10-13 23:05:31,310 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
[2019-10-13 23:05:31,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2581 states.
[2019-10-13 23:05:31,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2540.
[2019-10-13 23:05:31,449 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2540 states.
[2019-10-13 23:05:31,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3839 transitions.
[2019-10-13 23:05:31,471 INFO  L78                 Accepts]: Start accepts. Automaton has 2540 states and 3839 transitions. Word has length 81
[2019-10-13 23:05:31,472 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:31,472 INFO  L462      AbstractCegarLoop]: Abstraction has 2540 states and 3839 transitions.
[2019-10-13 23:05:31,472 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2019-10-13 23:05:31,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 2540 states and 3839 transitions.
[2019-10-13 23:05:31,476 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2019-10-13 23:05:31,476 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:31,476 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]
[2019-10-13 23:05:31,476 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:31,477 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:31,477 INFO  L82        PathProgramCache]: Analyzing trace with hash -1376353369, now seen corresponding path program 1 times
[2019-10-13 23:05:31,477 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:31,477 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584634928]
[2019-10-13 23:05:31,477 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:31,478 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:31,478 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:31,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:31,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-13 23:05:31,688 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584634928]
[2019-10-13 23:05:31,689 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:05:31,689 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 23:05:31,689 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938441824]
[2019-10-13 23:05:31,691 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 23:05:31,692 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:31,692 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 23:05:31,692 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 23:05:31,692 INFO  L87              Difference]: Start difference. First operand 2540 states and 3839 transitions. Second operand 3 states.
[2019-10-13 23:05:31,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:31,962 INFO  L93              Difference]: Finished difference Result 5865 states and 8977 transitions.
[2019-10-13 23:05:31,962 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-13 23:05:31,963 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 82
[2019-10-13 23:05:31,963 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:31,991 INFO  L225             Difference]: With dead ends: 5865
[2019-10-13 23:05:31,992 INFO  L226             Difference]: Without dead ends: 3356
[2019-10-13 23:05:32,006 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 23:05:32,011 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3356 states.
[2019-10-13 23:05:32,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3298.
[2019-10-13 23:05:32,357 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3298 states.
[2019-10-13 23:05:32,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 4999 transitions.
[2019-10-13 23:05:32,401 INFO  L78                 Accepts]: Start accepts. Automaton has 3298 states and 4999 transitions. Word has length 82
[2019-10-13 23:05:32,402 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:32,402 INFO  L462      AbstractCegarLoop]: Abstraction has 3298 states and 4999 transitions.
[2019-10-13 23:05:32,402 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 23:05:32,403 INFO  L276                IsEmpty]: Start isEmpty. Operand 3298 states and 4999 transitions.
[2019-10-13 23:05:32,407 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2019-10-13 23:05:32,408 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:32,408 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]
[2019-10-13 23:05:32,408 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:32,409 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:32,409 INFO  L82        PathProgramCache]: Analyzing trace with hash 829375675, now seen corresponding path program 1 times
[2019-10-13 23:05:32,409 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:32,409 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205631990]
[2019-10-13 23:05:32,410 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:32,410 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:32,410 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:32,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:32,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 23:05:32,712 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205631990]
[2019-10-13 23:05:32,712 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908162123]
[2019-10-13 23:05:32,713 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:33,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:33,246 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core
[2019-10-13 23:05:33,259 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 23:05:33,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 23:05:33,378 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 23:05:33,505 INFO  L319       QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 23:05:33,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-13 23:05:33,661 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-13 23:05:33,661 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [11] total 20
[2019-10-13 23:05:33,662 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893098982]
[2019-10-13 23:05:33,663 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 11 states
[2019-10-13 23:05:33,663 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:33,663 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2019-10-13 23:05:33,663 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2019-10-13 23:05:33,664 INFO  L87              Difference]: Start difference. First operand 3298 states and 4999 transitions. Second operand 11 states.
[2019-10-13 23:05:38,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:38,638 INFO  L93              Difference]: Finished difference Result 9416 states and 14470 transitions.
[2019-10-13 23:05:38,639 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2019-10-13 23:05:38,639 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 82
[2019-10-13 23:05:38,640 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:38,707 INFO  L225             Difference]: With dead ends: 9416
[2019-10-13 23:05:38,707 INFO  L226             Difference]: Without dead ends: 6149
[2019-10-13 23:05:38,744 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506
[2019-10-13 23:05:38,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6149 states.
[2019-10-13 23:05:39,069 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 6122.
[2019-10-13 23:05:39,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6122 states.
[2019-10-13 23:05:39,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 9045 transitions.
[2019-10-13 23:05:39,101 INFO  L78                 Accepts]: Start accepts. Automaton has 6122 states and 9045 transitions. Word has length 82
[2019-10-13 23:05:39,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:39,102 INFO  L462      AbstractCegarLoop]: Abstraction has 6122 states and 9045 transitions.
[2019-10-13 23:05:39,102 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2019-10-13 23:05:39,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 6122 states and 9045 transitions.
[2019-10-13 23:05:39,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2019-10-13 23:05:39,107 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:39,108 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]
[2019-10-13 23:05:39,315 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:39,315 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:39,316 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:39,316 INFO  L82        PathProgramCache]: Analyzing trace with hash 592414164, now seen corresponding path program 1 times
[2019-10-13 23:05:39,317 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:39,317 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676476646]
[2019-10-13 23:05:39,317 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:39,317 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:39,318 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:39,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:39,628 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 23:05:39,628 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676476646]
[2019-10-13 23:05:39,629 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645820285]
[2019-10-13 23:05:39,629 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
[2019-10-13 23:05:40,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:40,219 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core
[2019-10-13 23:05:40,229 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 23:05:40,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 23:05:40,277 INFO  L321         TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 23:05:40,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-10-13 23:05:40,379 INFO  L223   tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-13 23:05:40,379 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12
[2019-10-13 23:05:40,379 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278383731]
[2019-10-13 23:05:40,381 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 23:05:40,381 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:40,381 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 23:05:40,381 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2019-10-13 23:05:40,382 INFO  L87              Difference]: Start difference. First operand 6122 states and 9045 transitions. Second operand 3 states.
[2019-10-13 23:05:40,657 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:40,658 INFO  L93              Difference]: Finished difference Result 13415 states and 19965 transitions.
[2019-10-13 23:05:40,658 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-13 23:05:40,659 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 81
[2019-10-13 23:05:40,660 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:40,717 INFO  L225             Difference]: With dead ends: 13415
[2019-10-13 23:05:40,717 INFO  L226             Difference]: Without dead ends: 7324
[2019-10-13 23:05:40,755 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2019-10-13 23:05:40,764 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7324 states.
[2019-10-13 23:05:41,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 6076.
[2019-10-13 23:05:41,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6076 states.
[2019-10-13 23:05:41,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 8962 transitions.
[2019-10-13 23:05:41,138 INFO  L78                 Accepts]: Start accepts. Automaton has 6076 states and 8962 transitions. Word has length 81
[2019-10-13 23:05:41,139 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:41,139 INFO  L462      AbstractCegarLoop]: Abstraction has 6076 states and 8962 transitions.
[2019-10-13 23:05:41,139 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 23:05:41,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 6076 states and 8962 transitions.
[2019-10-13 23:05:41,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2019-10-13 23:05:41,144 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:41,144 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]
[2019-10-13 23:05:41,353 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:41,353 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:41,353 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:41,354 INFO  L82        PathProgramCache]: Analyzing trace with hash -2036417947, now seen corresponding path program 1 times
[2019-10-13 23:05:41,354 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:41,354 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206760930]
[2019-10-13 23:05:41,354 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:41,355 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:41,355 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:41,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:41,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2019-10-13 23:05:41,730 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206760930]
[2019-10-13 23:05:41,731 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 23:05:41,731 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2019-10-13 23:05:41,731 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290171353]
[2019-10-13 23:05:41,733 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-10-13 23:05:41,733 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 23:05:41,733 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-10-13 23:05:41,734 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2019-10-13 23:05:41,734 INFO  L87              Difference]: Start difference. First operand 6076 states and 8962 transitions. Second operand 7 states.
[2019-10-13 23:05:46,518 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 23:05:46,518 INFO  L93              Difference]: Finished difference Result 22880 states and 35198 transitions.
[2019-10-13 23:05:46,519 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2019-10-13 23:05:46,519 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 129
[2019-10-13 23:05:46,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 23:05:46,701 INFO  L225             Difference]: With dead ends: 22880
[2019-10-13 23:05:46,701 INFO  L226             Difference]: Without dead ends: 16835
[2019-10-13 23:05:46,760 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2019-10-13 23:05:46,788 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16835 states.
[2019-10-13 23:05:47,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16835 to 16506.
[2019-10-13 23:05:47,618 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 16506 states.
[2019-10-13 23:05:47,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16506 states to 16506 states and 25051 transitions.
[2019-10-13 23:05:47,712 INFO  L78                 Accepts]: Start accepts. Automaton has 16506 states and 25051 transitions. Word has length 129
[2019-10-13 23:05:47,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 23:05:47,713 INFO  L462      AbstractCegarLoop]: Abstraction has 16506 states and 25051 transitions.
[2019-10-13 23:05:47,713 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-10-13 23:05:47,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 16506 states and 25051 transitions.
[2019-10-13 23:05:47,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2019-10-13 23:05:47,720 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 23:05:47,722 INFO  L380         BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 23:05:47,722 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 23:05:47,722 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 23:05:47,722 INFO  L82        PathProgramCache]: Analyzing trace with hash 1439096578, now seen corresponding path program 1 times
[2019-10-13 23:05:47,723 INFO  L157   tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 23:05:47,723 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524483588]
[2019-10-13 23:05:47,723 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:47,723 INFO  L116   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 23:05:47,723 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 23:05:47,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:48,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 216 backedges. 27 proven. 44 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2019-10-13 23:05:48,260 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524483588]
[2019-10-13 23:05:48,260 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376005510]
[2019-10-13 23:05:48,260 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 23:05:49,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 23:05:49,092 INFO  L256         TraceCheckSpWp]: Trace formula consists of 4692 conjuncts, 10 conjunts are in the unsatisfiable core
[2019-10-13 23:05:49,103 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 23:05:49,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 216 backedges. 101 proven. 52 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2019-10-13 23:05:49,311 INFO  L321         TraceCheckSpWp]: Computing backward predicates...