java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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_label27_true-unreach-call.c


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This is Ultimate 0.1.23-df4b876
[2018-11-06 20:33:21,452 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-11-06 20:33:21,454 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-06 20:33:21,467 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-06 20:33:21,467 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-06 20:33:21,468 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2018-11-06 20:33:21,477 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-06 20:33:21,478 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-06 20:33:21,480 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-06 20:33:21,481 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-06 20:33:21,483 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-06 20:33:21,484 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
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[2018-11-06 20:33:21,490 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-06 20:33:21,496 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2018-11-06 20:33:21,501 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-06 20:33:21,502 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-06 20:33:21,505 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2018-11-06 20:33:21,511 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
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[2018-11-06 20:33:21,514 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2018-11-06 20:33:21,542 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-11-06 20:33:21,543 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-06 20:33:21,543 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-11-06 20:33:21,547 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-11-06 20:33:21,547 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-11-06 20:33:21,548 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-11-06 20:33:21,548 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-11-06 20:33:21,548 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-06 20:33:21,548 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-11-06 20:33:21,548 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-11-06 20:33:21,549 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-11-06 20:33:21,550 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-11-06 20:33:21,550 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-11-06 20:33:21,550 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-11-06 20:33:21,550 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-11-06 20:33:21,550 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-06 20:33:21,552 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-11-06 20:33:21,552 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-11-06 20:33:21,552 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-11-06 20:33:21,552 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-11-06 20:33:21,552 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-06 20:33:21,553 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-11-06 20:33:21,553 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-11-06 20:33:21,553 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-11-06 20:33:21,553 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-11-06 20:33:21,554 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-11-06 20:33:21,554 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-11-06 20:33:21,554 INFO  L133        SettingsManager]:  * To the following directory=dump/
[2018-11-06 20:33:21,604 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-06 20:33:21,617 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-06 20:33:21,621 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-06 20:33:21,622 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-11-06 20:33:21,623 INFO  L276        PluginConnector]: CDTParser initialized
[2018-11-06 20:33:21,624 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label27_true-unreach-call.c
[2018-11-06 20:33:21,678 INFO  L218              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab451ccdb/67efc9084f9f4987b6ddeb972986c70f/FLAG3e17a60eb
[2018-11-06 20:33:23,819 INFO  L298              CDTParser]: Found 1 translation units.
[2018-11-06 20:33:23,820 INFO  L158              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label27_true-unreach-call.c
[2018-11-06 20:33:24,057 INFO  L346              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab451ccdb/67efc9084f9f4987b6ddeb972986c70f/FLAG3e17a60eb
[2018-11-06 20:33:24,071 INFO  L354              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab451ccdb/67efc9084f9f4987b6ddeb972986c70f
[2018-11-06 20:33:24,080 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-06 20:33:24,082 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-11-06 20:33:24,083 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-06 20:33:24,083 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-06 20:33:24,087 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-06 20:33:24,088 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:24" (1/1) ...
[2018-11-06 20:33:24,091 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ec1c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:24, skipping insertion in model container
[2018-11-06 20:33:24,091 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:24" (1/1) ...
[2018-11-06 20:33:24,102 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-11-06 20:33:25,225 INFO  L174         MainTranslator]: Built tables and reachable declarations
[2018-11-06 20:33:36,416 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-11-06 20:33:36,421 INFO  L189         MainTranslator]: Completed pre-run
[2018-11-06 20:33:42,998 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-11-06 20:33:44,064 INFO  L193         MainTranslator]: Completed translation
[2018-11-06 20:33:44,064 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44 WrapperNode
[2018-11-06 20:33:44,064 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-06 20:33:44,066 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-11-06 20:33:44,066 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-11-06 20:33:44,066 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-11-06 20:33:44,075 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:47,637 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:49,291 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-11-06 20:33:49,292 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-11-06 20:33:49,292 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-11-06 20:33:49,292 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-11-06 20:33:49,306 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:49,307 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:49,706 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:49,707 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:50,882 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:51,177 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:51,622 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (1/1) ...
[2018-11-06 20:33:52,187 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-11-06 20:33:52,188 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-11-06 20:33:52,189 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-11-06 20:33:52,189 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-11-06 20:33:52,197 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (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
[2018-11-06 20:33:52,277 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2018-11-06 20:33:52,277 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-11-06 20:33:52,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-11-06 20:34:46,615 INFO  L276             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-11-06 20:34:46,616 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:46 BoogieIcfgContainer
[2018-11-06 20:34:46,616 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-11-06 20:34:46,618 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-11-06 20:34:46,618 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-11-06 20:34:46,621 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-11-06 20:34:46,622 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:33:24" (1/3) ...
[2018-11-06 20:34:46,623 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be02aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:46, skipping insertion in model container
[2018-11-06 20:34:46,623 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:44" (2/3) ...
[2018-11-06 20:34:46,623 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21be02aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:46, skipping insertion in model container
[2018-11-06 20:34:46,624 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:46" (3/3) ...
[2018-11-06 20:34:46,626 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label27_true-unreach-call.c
[2018-11-06 20:34:46,636 INFO  L136   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-11-06 20:34:46,648 INFO  L148   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-11-06 20:34:46,662 INFO  L257      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2018-11-06 20:34:46,740 INFO  L135   ementStrategyFactory]: Using default assertion order modulation
[2018-11-06 20:34:46,741 INFO  L382      AbstractCegarLoop]: Interprodecural is true
[2018-11-06 20:34:46,741 INFO  L383      AbstractCegarLoop]: Hoare is true
[2018-11-06 20:34:46,741 INFO  L384      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-11-06 20:34:46,741 INFO  L385      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-11-06 20:34:46,741 INFO  L386      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-11-06 20:34:46,742 INFO  L387      AbstractCegarLoop]: Difference is false
[2018-11-06 20:34:46,742 INFO  L388      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-11-06 20:34:46,742 INFO  L393      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-11-06 20:34:46,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 10258 states.
[2018-11-06 20:34:47,770 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10117
[2018-11-06 20:34:47,770 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-06 20:34:47,778 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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[2018-11-06 20:34:47,782 INFO  L423      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-06 20:34:47,790 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-06 20:34:47,797 INFO  L82        PathProgramCache]: Analyzing trace with hash 1975003154, now seen corresponding path program 1 times
[2018-11-06 20:34:47,799 INFO  L225   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-06 20:34:47,799 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-06 20:34:47,853 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-06 20:34:47,853 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-06 20:34:47,854 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-06 20:34:49,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-06 20:36:07,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-06 20:36:07,150 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-06 20:36:07,151 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-11-06 20:36:07,172 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-11-06 20:36:07,188 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-11-06 20:36:07,188 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-06 20:36:07,191 INFO  L87              Difference]: Start difference. First operand 10258 states. Second operand 3 states.
[2018-11-06 20:37:07,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-06 20:37:07,039 INFO  L93              Difference]: Finished difference Result 30708 states and 61137 transitions.
[2018-11-06 20:37:07,039 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-11-06 20:37:07,041 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10116
[2018-11-06 20:37:07,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-06 20:37:07,223 INFO  L225             Difference]: With dead ends: 30708
[2018-11-06 20:37:07,224 INFO  L226             Difference]: Without dead ends: 20446
[2018-11-06 20:37:07,253 INFO  L604         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
[2018-11-06 20:37:07,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20446 states.
[2018-11-06 20:37:07,891 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20446 to 20446.
[2018-11-06 20:37:07,893 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20446 states.
[2018-11-06 20:37:07,974 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20446 states to 20446 states and 35956 transitions.
[2018-11-06 20:37:07,976 INFO  L78                 Accepts]: Start accepts. Automaton has 20446 states and 35956 transitions. Word has length 10116
[2018-11-06 20:37:07,999 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-06 20:37:08,000 INFO  L480      AbstractCegarLoop]: Abstraction has 20446 states and 35956 transitions.
[2018-11-06 20:37:08,000 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-11-06 20:37:08,000 INFO  L276                IsEmpty]: Start isEmpty. Operand 20446 states and 35956 transitions.
[2018-11-06 20:37:09,334 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10124
[2018-11-06 20:37:09,334 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-06 20:37:09,341 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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[2018-11-06 20:37:09,342 INFO  L423      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-06 20:37:09,343 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-06 20:37:09,347 INFO  L82        PathProgramCache]: Analyzing trace with hash 1325004117, now seen corresponding path program 1 times
[2018-11-06 20:37:09,348 INFO  L225   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-06 20:37:09,348 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-06 20:37:09,351 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-06 20:37:09,352 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-06 20:37:09,352 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-06 20:37:10,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
Received shutdown request...
Cannot interrupt operation gracefully because timeout expired. Forcing shutdown