java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label40_false-unreach-call.c


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This is Ultimate 0.1.23-d380424
[2018-10-24 13:42:36,716 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-10-24 13:42:36,719 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-10-24 13:42:36,735 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-10-24 13:42:36,735 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-10-24 13:42:36,736 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-10-24 13:42:36,738 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-10-24 13:42:36,739 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-10-24 13:42:36,741 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2018-10-24 13:42:36,743 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-10-24 13:42:36,743 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-10-24 13:42:36,744 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-10-24 13:42:36,745 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-10-24 13:42:36,747 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-10-24 13:42:36,747 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-10-24 13:42:36,748 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-10-24 13:42:36,750 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-10-24 13:42:36,752 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-10-24 13:42:36,754 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-10-24 13:42:36,755 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-10-24 13:42:36,757 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-10-24 13:42:36,759 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-10-24 13:42:36,760 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-10-24 13:42:36,760 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-10-24 13:42:36,761 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-10-24 13:42:36,762 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-10-24 13:42:36,765 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-10-24 13:42:36,767 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-10-24 13:42:36,768 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-10-24 13:42:36,768 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-10-24 13:42:36,770 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2018-10-24 13:42:36,770 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
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[2018-10-24 13:42:36,772 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-10-24 13:42:36,772 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2018-10-24 13:42:36,802 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-10-24 13:42:36,802 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-10-24 13:42:36,803 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-10-24 13:42:36,803 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-10-24 13:42:36,804 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-10-24 13:42:36,805 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-10-24 13:42:36,805 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-10-24 13:42:36,805 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-10-24 13:42:36,805 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-10-24 13:42:36,806 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-10-24 13:42:36,806 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-10-24 13:42:36,806 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-10-24 13:42:36,806 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-10-24 13:42:36,807 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-10-24 13:42:36,807 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-10-24 13:42:36,807 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-10-24 13:42:36,807 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-10-24 13:42:36,808 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-10-24 13:42:36,809 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-10-24 13:42:36,809 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-10-24 13:42:36,809 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-10-24 13:42:36,810 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-10-24 13:42:36,810 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-10-24 13:42:36,810 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-10-24 13:42:36,810 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-10-24 13:42:36,810 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-10-24 13:42:36,811 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-10-24 13:42:36,811 INFO  L133        SettingsManager]:  * To the following directory=dump/
[2018-10-24 13:42:36,869 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-10-24 13:42:36,886 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-10-24 13:42:36,891 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-10-24 13:42:36,893 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-10-24 13:42:36,893 INFO  L276        PluginConnector]: CDTParser initialized
[2018-10-24 13:42:36,894 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label40_false-unreach-call.c
[2018-10-24 13:42:36,956 INFO  L218              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8/FLAGa5b6a6e35
[2018-10-24 13:42:38,993 INFO  L298              CDTParser]: Found 1 translation units.
[2018-10-24 13:42:38,994 INFO  L158              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label40_false-unreach-call.c
[2018-10-24 13:42:39,160 INFO  L346              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8/FLAGa5b6a6e35
[2018-10-24 13:42:39,178 INFO  L354              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d61ce6bbf/80c85b4f687f4c61aa7835665b15def8
[2018-10-24 13:42:39,188 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-10-24 13:42:39,190 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-10-24 13:42:39,191 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-10-24 13:42:39,191 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-10-24 13:42:39,195 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-10-24 13:42:39,196 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:42:39" (1/1) ...
[2018-10-24 13:42:39,199 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:39, skipping insertion in model container
[2018-10-24 13:42:39,200 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:42:39" (1/1) ...
[2018-10-24 13:42:39,209 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-10-24 13:42:40,767 INFO  L174         MainTranslator]: Built tables and reachable declarations
[2018-10-24 13:42:51,312 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-10-24 13:42:51,316 INFO  L189         MainTranslator]: Completed pre-run
[2018-10-24 13:42:58,457 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-10-24 13:42:59,410 INFO  L193         MainTranslator]: Completed translation
[2018-10-24 13:42:59,411 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59 WrapperNode
[2018-10-24 13:42:59,411 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-10-24 13:42:59,412 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-10-24 13:42:59,412 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-10-24 13:42:59,412 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-10-24 13:42:59,421 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:42:59,832 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:04,582 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-10-24 13:43:04,582 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-10-24 13:43:04,583 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-10-24 13:43:04,584 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-10-24 13:43:04,595 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:04,595 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:04,900 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:04,900 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:05,884 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:06,070 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:06,400 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
[2018-10-24 13:43:06,841 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-10-24 13:43:06,842 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-10-24 13:43:06,842 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-10-24 13:43:06,842 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-10-24 13:43:06,843 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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
[2018-10-24 13:43:06,916 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2018-10-24 13:43:06,916 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-10-24 13:43:06,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-10-24 13:44:00,127 INFO  L341             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-10-24 13:44:00,129 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:00 BoogieIcfgContainer
[2018-10-24 13:44:00,129 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-10-24 13:44:00,130 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-10-24 13:44:00,130 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-10-24 13:44:00,133 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-10-24 13:44:00,134 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:42:39" (1/3) ...
[2018-10-24 13:44:00,135 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e997624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:00, skipping insertion in model container
[2018-10-24 13:44:00,135 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:42:59" (2/3) ...
[2018-10-24 13:44:00,135 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e997624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:00, skipping insertion in model container
[2018-10-24 13:44:00,135 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:00" (3/3) ...
[2018-10-24 13:44:00,137 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label40_false-unreach-call.c
[2018-10-24 13:44:00,147 INFO  L136   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-10-24 13:44:00,165 INFO  L148   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-10-24 13:44:00,182 INFO  L257      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2018-10-24 13:44:00,258 INFO  L135   ementStrategyFactory]: Using default assertion order modulation
[2018-10-24 13:44:00,259 INFO  L382      AbstractCegarLoop]: Interprodecural is true
[2018-10-24 13:44:00,259 INFO  L383      AbstractCegarLoop]: Hoare is true
[2018-10-24 13:44:00,259 INFO  L384      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-10-24 13:44:00,259 INFO  L385      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-10-24 13:44:00,259 INFO  L386      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-10-24 13:44:00,259 INFO  L387      AbstractCegarLoop]: Difference is false
[2018-10-24 13:44:00,259 INFO  L388      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-10-24 13:44:00,260 INFO  L393      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-10-24 13:44:00,405 INFO  L276                IsEmpty]: Start isEmpty. Operand 10258 states.
[2018-10-24 13:44:01,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10095
[2018-10-24 13:44:01,068 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-24 13:44:01,075 INFO  L375         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2018-10-24 13:44:01,079 INFO  L424      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-10-24 13:44:01,087 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-10-24 13:44:01,093 INFO  L82        PathProgramCache]: Analyzing trace with hash 450478010, now seen corresponding path program 1 times
[2018-10-24 13:44:01,096 INFO  L225   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-24 13:44:01,096 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-24 13:44:01,150 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-24 13:44:01,150 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-24 13:44:01,150 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-24 13:44:03,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-24 13:45:27,075 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-24 13:45:27,078 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-10-24 13:45:27,080 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-10-24 13:45:27,099 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-10-24 13:45:27,115 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-10-24 13:45:27,116 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-10-24 13:45:27,118 INFO  L87              Difference]: Start difference. First operand 10258 states. Second operand 3 states.
[2018-10-24 13:46:27,737 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-24 13:46:27,738 INFO  L93              Difference]: Finished difference Result 30708 states and 61137 transitions.
[2018-10-24 13:46:27,738 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-10-24 13:46:27,740 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10094
[2018-10-24 13:46:27,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-24 13:46:27,902 INFO  L225             Difference]: With dead ends: 30708
[2018-10-24 13:46:27,902 INFO  L226             Difference]: Without dead ends: 20446
[2018-10-24 13:46:27,926 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-10-24 13:46:27,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20446 states.
[2018-10-24 13:46:28,490 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20446 to 20446.
[2018-10-24 13:46:28,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20446 states.
[2018-10-24 13:46:28,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20446 states to 20446 states and 35956 transitions.
[2018-10-24 13:46:28,566 INFO  L78                 Accepts]: Start accepts. Automaton has 20446 states and 35956 transitions. Word has length 10094
[2018-10-24 13:46:28,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-24 13:46:28,585 INFO  L481      AbstractCegarLoop]: Abstraction has 20446 states and 35956 transitions.
[2018-10-24 13:46:28,585 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-10-24 13:46:28,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 20446 states and 35956 transitions.
[2018-10-24 13:46:29,428 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10102
[2018-10-24 13:46:29,428 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-24 13:46:29,436 INFO  L375         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2018-10-24 13:46:29,437 INFO  L424      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-10-24 13:46:29,438 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-10-24 13:46:29,442 INFO  L82        PathProgramCache]: Analyzing trace with hash 960028989, now seen corresponding path program 1 times
[2018-10-24 13:46:29,442 INFO  L225   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-24 13:46:29,442 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-24 13:46:29,447 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-24 13:46:29,447 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-24 13:46:29,447 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-24 13:46:30,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
Received shutdown request...
Cannot interrupt operation gracefully because timeout expired. Forcing shutdown