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/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label00_true-unreach-call.c


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This is Ultimate 0.1.23-63daa26
[2018-11-12 17:28:41,168 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-11-12 17:28:41,171 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-12 17:28:41,187 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-12 17:28:41,187 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-12 17:28:41,188 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-11-12 17:28:41,191 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-11-12 17:28:41,194 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-11-12 17:28:41,196 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2018-11-12 17:28:41,199 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-11-12 17:28:41,199 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-11-12 17:28:41,201 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-11-12 17:28:41,202 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-12 17:28:41,205 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-12 17:28:41,212 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-12 17:28:41,213 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-12 17:28:41,217 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-12 17:28:41,221 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-11-12 17:28:41,223 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-11-12 17:28:41,225 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-12 17:28:41,226 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-11-12 17:28:41,229 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-11-12 17:28:41,229 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-11-12 17:28:41,229 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-12 17:28:41,232 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-12 17:28:41,233 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-11-12 17:28:41,234 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-11-12 17:28:41,235 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-11-12 17:28:41,237 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-11-12 17:28:41,237 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-11-12 17:28:41,238 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-11-12 17:28:41,238 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-11-12 17:28:41,238 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
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[2018-11-12 17:28:41,241 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-11-12 17:28:41,242 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf
[2018-11-12 17:28:41,264 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-11-12 17:28:41,264 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-12 17:28:41,265 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-11-12 17:28:41,265 INFO  L133        SettingsManager]:  * User list type=DISABLED
[2018-11-12 17:28:41,265 INFO  L133        SettingsManager]:  * calls to implemented procedures=false
[2018-11-12 17:28:41,266 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-11-12 17:28:41,266 INFO  L133        SettingsManager]:  * Maximum recursion depth of evaluation operations=6
[2018-11-12 17:28:41,267 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2018-11-12 17:28:41,267 INFO  L133        SettingsManager]:  * Octagon Domain=false
[2018-11-12 17:28:41,267 INFO  L133        SettingsManager]:  * Abstract domain=CompoundDomain
[2018-11-12 17:28:41,267 INFO  L133        SettingsManager]:  * Log string format=TERM
[2018-11-12 17:28:41,268 INFO  L133        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2018-11-12 17:28:41,268 INFO  L133        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2018-11-12 17:28:41,269 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-12 17:28:41,269 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-11-12 17:28:41,269 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-11-12 17:28:41,270 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-11-12 17:28:41,270 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-11-12 17:28:41,270 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-11-12 17:28:41,270 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-11-12 17:28:41,270 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-11-12 17:28:41,272 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-12 17:28:41,272 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-11-12 17:28:41,273 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-11-12 17:28:41,273 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-11-12 17:28:41,273 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-11-12 17:28:41,273 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-12 17:28:41,273 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-11-12 17:28:41,274 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-11-12 17:28:41,274 INFO  L133        SettingsManager]:  * Trace refinement strategy=TAIPAN
[2018-11-12 17:28:41,274 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-11-12 17:28:41,274 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-11-12 17:28:41,274 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-11-12 17:28:41,275 INFO  L133        SettingsManager]:  * To the following directory=dump/
[2018-11-12 17:28:41,275 INFO  L133        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2018-11-12 17:28:41,338 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-12 17:28:41,359 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-12 17:28:41,363 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-12 17:28:41,365 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-11-12 17:28:41,366 INFO  L276        PluginConnector]: CDTParser initialized
[2018-11-12 17:28:41,366 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label00_true-unreach-call.c
[2018-11-12 17:28:41,434 INFO  L218              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d07c6120/ab8d3dbd62664e0ca7c800421c7987d3/FLAGde6079bed
[2018-11-12 17:28:42,256 INFO  L298              CDTParser]: Found 1 translation units.
[2018-11-12 17:28:42,258 INFO  L158              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label00_true-unreach-call.c
[2018-11-12 17:28:42,295 INFO  L346              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d07c6120/ab8d3dbd62664e0ca7c800421c7987d3/FLAGde6079bed
[2018-11-12 17:28:42,313 INFO  L354              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d07c6120/ab8d3dbd62664e0ca7c800421c7987d3
[2018-11-12 17:28:42,327 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-12 17:28:42,329 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-11-12 17:28:42,330 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-12 17:28:42,331 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-12 17:28:42,335 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-12 17:28:42,336 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:42" (1/1) ...
[2018-11-12 17:28:42,339 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5101c3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:42, skipping insertion in model container
[2018-11-12 17:28:42,340 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:42" (1/1) ...
[2018-11-12 17:28:42,352 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-11-12 17:28:42,514 INFO  L174         MainTranslator]: Built tables and reachable declarations
[2018-11-12 17:28:43,914 INFO  L201          PostProcessor]: Analyzing one entry point: main
[2018-11-12 17:28:43,920 INFO  L189         MainTranslator]: Completed pre-run
[2018-11-12 17:28:44,731 INFO  L201          PostProcessor]: Analyzing one entry point: main
[2018-11-12 17:28:44,773 INFO  L193         MainTranslator]: Completed translation
[2018-11-12 17:28:44,773 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44 WrapperNode
[2018-11-12 17:28:44,774 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-12 17:28:44,774 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-11-12 17:28:44,775 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-11-12 17:28:44,775 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-11-12 17:28:45,079 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,149 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,162 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-11-12 17:28:45,163 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-11-12 17:28:45,163 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-11-12 17:28:45,163 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-11-12 17:28:45,174 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,174 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,195 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,196 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,295 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,343 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,371 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (1/1) ...
[2018-11-12 17:28:45,397 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-11-12 17:28:45,398 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-11-12 17:28:45,398 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-11-12 17:28:45,398 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-11-12 17:28:45,399 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (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
[2018-11-12 17:28:45,472 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2018-11-12 17:28:45,472 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-11-12 17:28:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-11-12 17:28:45,473 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2018-11-12 17:28:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2018-11-12 17:28:45,473 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2018-11-12 17:28:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2018-11-12 17:28:45,473 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2018-11-12 17:28:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2018-11-12 17:28:45,474 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2018-11-12 17:28:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2018-11-12 17:28:45,474 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-11-12 17:28:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-11-12 17:28:45,475 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2018-11-12 17:28:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2018-11-12 17:28:55,647 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-11-12 17:28:55,648 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:55 BoogieIcfgContainer
[2018-11-12 17:28:55,648 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-11-12 17:28:55,649 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-11-12 17:28:55,650 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-11-12 17:28:55,654 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-11-12 17:28:55,654 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:28:42" (1/3) ...
[2018-11-12 17:28:55,657 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d265be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:55, skipping insertion in model container
[2018-11-12 17:28:55,657 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:44" (2/3) ...
[2018-11-12 17:28:55,658 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d265be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:55, skipping insertion in model container
[2018-11-12 17:28:55,658 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:55" (3/3) ...
[2018-11-12 17:28:55,661 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem04_label00_true-unreach-call.c
[2018-11-12 17:28:55,670 INFO  L136   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-11-12 17:28:55,679 INFO  L148   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-11-12 17:28:55,697 INFO  L257      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2018-11-12 17:28:55,745 INFO  L382      AbstractCegarLoop]: Interprodecural is true
[2018-11-12 17:28:55,745 INFO  L383      AbstractCegarLoop]: Hoare is true
[2018-11-12 17:28:55,745 INFO  L384      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-11-12 17:28:55,745 INFO  L385      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-11-12 17:28:55,745 INFO  L386      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-11-12 17:28:55,746 INFO  L387      AbstractCegarLoop]: Difference is false
[2018-11-12 17:28:55,746 INFO  L388      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-11-12 17:28:55,746 INFO  L393      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-11-12 17:28:55,784 INFO  L276                IsEmpty]: Start isEmpty. Operand 907 states.
[2018-11-12 17:28:55,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 815
[2018-11-12 17:28:55,838 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:28:55,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:28:55,843 INFO  L423      AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:28:55,849 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:28:55,850 INFO  L82        PathProgramCache]: Analyzing trace with hash 1084653638, now seen corresponding path program 1 times
[2018-11-12 17:28:55,853 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:28:55,910 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:28:55,910 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:28:55,910 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:28:55,911 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:28:56,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:28:58,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-12 17:28:58,161 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-12 17:28:58,162 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-11-12 17:28:58,162 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:28:58,169 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-11-12 17:28:58,180 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-11-12 17:28:58,181 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-12 17:28:58,183 INFO  L87              Difference]: Start difference. First operand 907 states. Second operand 3 states.
[2018-11-12 17:29:04,734 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-12 17:29:04,734 INFO  L93              Difference]: Finished difference Result 2647 states and 5102 transitions.
[2018-11-12 17:29:04,735 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-11-12 17:29:04,737 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 814
[2018-11-12 17:29:04,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-12 17:29:04,795 INFO  L225             Difference]: With dead ends: 2647
[2018-11-12 17:29:04,795 INFO  L226             Difference]: Without dead ends: 1738
[2018-11-12 17:29:04,812 INFO  L604         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-12 17:29:04,839 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1738 states.
[2018-11-12 17:29:04,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738.
[2018-11-12 17:29:04,999 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1738 states.
[2018-11-12 17:29:05,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3151 transitions.
[2018-11-12 17:29:05,016 INFO  L78                 Accepts]: Start accepts. Automaton has 1738 states and 3151 transitions. Word has length 814
[2018-11-12 17:29:05,020 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-12 17:29:05,021 INFO  L480      AbstractCegarLoop]: Abstraction has 1738 states and 3151 transitions.
[2018-11-12 17:29:05,021 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-11-12 17:29:05,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 1738 states and 3151 transitions.
[2018-11-12 17:29:05,051 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 824
[2018-11-12 17:29:05,051 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:29:05,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:29:05,052 INFO  L423      AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:29:05,052 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:29:05,055 INFO  L82        PathProgramCache]: Analyzing trace with hash 1697261669, now seen corresponding path program 1 times
[2018-11-12 17:29:05,055 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:29:05,056 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:05,056 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:29:05,057 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:05,057 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:29:05,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:29:06,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-12 17:29:06,561 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-12 17:29:06,562 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2018-11-12 17:29:06,562 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:29:06,564 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-11-12 17:29:06,565 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-11-12 17:29:06,565 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-11-12 17:29:06,565 INFO  L87              Difference]: Start difference. First operand 1738 states and 3151 transitions. Second operand 4 states.
[2018-11-12 17:29:16,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-12 17:29:16,241 INFO  L93              Difference]: Finished difference Result 6810 states and 12604 transitions.
[2018-11-12 17:29:16,243 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2018-11-12 17:29:16,243 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 823
[2018-11-12 17:29:16,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-12 17:29:16,355 INFO  L225             Difference]: With dead ends: 6810
[2018-11-12 17:29:16,355 INFO  L226             Difference]: Without dead ends: 5078
[2018-11-12 17:29:16,362 INFO  L604         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-11-12 17:29:16,366 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5078 states.
[2018-11-12 17:29:16,475 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078.
[2018-11-12 17:29:16,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5078 states.
[2018-11-12 17:29:16,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8725 transitions.
[2018-11-12 17:29:16,494 INFO  L78                 Accepts]: Start accepts. Automaton has 5078 states and 8725 transitions. Word has length 823
[2018-11-12 17:29:16,496 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-12 17:29:16,496 INFO  L480      AbstractCegarLoop]: Abstraction has 5078 states and 8725 transitions.
[2018-11-12 17:29:16,496 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-11-12 17:29:16,496 INFO  L276                IsEmpty]: Start isEmpty. Operand 5078 states and 8725 transitions.
[2018-11-12 17:29:16,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 889
[2018-11-12 17:29:16,523 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:29:16,524 INFO  L375         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:29:16,524 INFO  L423      AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:29:16,524 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:29:16,525 INFO  L82        PathProgramCache]: Analyzing trace with hash 1785385469, now seen corresponding path program 1 times
[2018-11-12 17:29:16,525 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:29:16,526 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:16,526 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:29:16,526 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:16,526 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:29:16,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:29:16,978 WARN  L179               SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4
[2018-11-12 17:29:17,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-12 17:29:17,951 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-12 17:29:17,951 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-11-12 17:29:17,951 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:29:17,953 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-11-12 17:29:17,953 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-11-12 17:29:17,954 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2018-11-12 17:29:17,954 INFO  L87              Difference]: Start difference. First operand 5078 states and 8725 transitions. Second operand 6 states.
[2018-11-12 17:29:25,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-12 17:29:25,160 INFO  L93              Difference]: Finished difference Result 13041 states and 22564 transitions.
[2018-11-12 17:29:25,163 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2018-11-12 17:29:25,163 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 888
[2018-11-12 17:29:25,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-12 17:29:25,215 INFO  L225             Difference]: With dead ends: 13041
[2018-11-12 17:29:25,216 INFO  L226             Difference]: Without dead ends: 7969
[2018-11-12 17:29:25,233 INFO  L604         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2018-11-12 17:29:25,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7969 states.
[2018-11-12 17:29:25,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7969 to 7917.
[2018-11-12 17:29:25,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7917 states.
[2018-11-12 17:29:25,454 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 12412 transitions.
[2018-11-12 17:29:25,455 INFO  L78                 Accepts]: Start accepts. Automaton has 7917 states and 12412 transitions. Word has length 888
[2018-11-12 17:29:25,459 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-12 17:29:25,459 INFO  L480      AbstractCegarLoop]: Abstraction has 7917 states and 12412 transitions.
[2018-11-12 17:29:25,460 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-11-12 17:29:25,460 INFO  L276                IsEmpty]: Start isEmpty. Operand 7917 states and 12412 transitions.
[2018-11-12 17:29:25,494 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 911
[2018-11-12 17:29:25,495 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:29:25,496 INFO  L375         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:29:25,496 INFO  L423      AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:29:25,496 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:29:25,498 INFO  L82        PathProgramCache]: Analyzing trace with hash -1755484836, now seen corresponding path program 1 times
[2018-11-12 17:29:25,498 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:29:25,499 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:25,499 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:29:25,499 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:29:25,499 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:29:25,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:29:26,104 WARN  L179               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11
[2018-11-12 17:29:26,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2018-11-12 17:29:26,997 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-12 17:29:26,997 INFO  L192   anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION
[2018-11-12 17:29:27,000 INFO  L200      CegarAbsIntRunner]: Running AI on error trace of length 911 with the following transitions: 
[2018-11-12 17:29:27,004 INFO  L202      CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [725], [727], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1926], [1930], [1934], [1938], [1942], [1946], [1950], [1954], [1958], [1962], [1966], [1970], [1974], [1978], [1982], [1986], [1990], [1994], [1998], [2002], [2006], [2010], [2014], [2018], [2022], [2026], [2030], [2034], [2038], [2042], [2046], [2050], [2054], [2058], [2062], [2066], [2070], [2074], [2078], [2082], [2086], [2090], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2166], [2170], [2174], [2178], [2182], [2186], [2190], [2194], [2198], [2202], [2206], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2282], [2286], [2290], [2294], [2298], [2302], [2306], [2310], [2314], [2318], [2322], [2326], [2330], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2366], [2370], [2374], [2378], [2382], [2386], [2390], [2394], [2398], [2402], [2406], [2410], [2414], [2418], [2422], [2426], [2430], [2434], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2478], [2482], [2486], [2490], [2494], [2498], [2502], [2506], [2510], [2514], [2518], [2522], [2526], [2530], [2534], [2538], [2542], [2546], [2550], [2554], [2558], [2562], [2566], [2570], [2574], [2578], [2582], [2586], [2590], [2594], [2598], [2602], [2606], [2610], [2614], [2618], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2677], [2678], [2682], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2885], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3505], [3509], [3513], [3519], [3523], [3525], [3530], [3532], [3534], [3536], [3537], [3538], [3540], [3541]
[2018-11-12 17:29:27,108 INFO  L148    AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain]
[2018-11-12 17:29:27,109 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2)
[2018-11-12 17:29:30,823 INFO  L266    AbstractInterpreter]: Error location(s) were unreachable
[2018-11-12 17:29:30,828 INFO  L272    AbstractInterpreter]: Visited 815 different actions 815 times. Never merged. Never widened. Performed 14539 root evaluator evaluations with a maximum evaluation depth of 6. Performed 14539 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 44 variables.
[2018-11-12 17:29:31,054 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:29:31,055 INFO  L398   sIntCurrentIteration]: Generating AbsInt predicates
[2018-11-12 17:29:33,693 INFO  L227   lantSequenceWeakener]: Weakened 888 states. On average, predicates are now at 78.69% of their original sizes.
[2018-11-12 17:29:33,695 INFO  L413   sIntCurrentIteration]: Unifying AI predicates
[2018-11-12 17:29:34,497 INFO  L415   sIntCurrentIteration]: We unified 909 AI predicates to 909
[2018-11-12 17:29:34,497 INFO  L424   sIntCurrentIteration]: Finished generation of AbsInt predicates
[2018-11-12 17:29:34,498 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-12 17:29:34,499 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24
[2018-11-12 17:29:34,499 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:29:34,500 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 19 states
[2018-11-12 17:29:34,501 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2018-11-12 17:29:34,501 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342
[2018-11-12 17:29:34,501 INFO  L87              Difference]: Start difference. First operand 7917 states and 12412 transitions. Second operand 19 states.
[2018-11-12 17:30:26,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-12 17:30:26,252 INFO  L93              Difference]: Finished difference Result 16668 states and 26131 transitions.
[2018-11-12 17:30:26,252 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2018-11-12 17:30:26,252 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states. Word has length 910
[2018-11-12 17:30:26,252 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-12 17:30:26,292 INFO  L225             Difference]: With dead ends: 16668
[2018-11-12 17:30:26,292 INFO  L226             Difference]: Without dead ends: 8757
[2018-11-12 17:30:26,311 INFO  L604         BasicCegarLoop]: 2 DeclaredPredicates, 922 GetRequests, 876 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992
[2018-11-12 17:30:26,318 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8757 states.
[2018-11-12 17:30:26,467 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 8752.
[2018-11-12 17:30:26,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8752 states.
[2018-11-12 17:30:26,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8752 states to 8752 states and 13262 transitions.
[2018-11-12 17:30:26,485 INFO  L78                 Accepts]: Start accepts. Automaton has 8752 states and 13262 transitions. Word has length 910
[2018-11-12 17:30:26,485 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-12 17:30:26,485 INFO  L480      AbstractCegarLoop]: Abstraction has 8752 states and 13262 transitions.
[2018-11-12 17:30:26,485 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 19 states.
[2018-11-12 17:30:26,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 8752 states and 13262 transitions.
[2018-11-12 17:30:26,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 933
[2018-11-12 17:30:26,517 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:30:26,518 INFO  L375         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:30:26,519 INFO  L423      AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:30:26,519 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:30:26,520 INFO  L82        PathProgramCache]: Analyzing trace with hash 448700347, now seen corresponding path program 1 times
[2018-11-12 17:30:26,520 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:30:26,521 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:30:26,521 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:30:26,521 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:30:26,521 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:30:26,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:30:27,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 173 backedges. 132 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2018-11-12 17:30:27,465 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-12 17:30:27,466 INFO  L192   anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION
[2018-11-12 17:30:27,466 INFO  L200      CegarAbsIntRunner]: Running AI on error trace of length 933 with the following transitions: 
[2018-11-12 17:30:27,467 INFO  L202      CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [725], [727], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1926], [1930], [1934], [1938], [1942], [1946], [1950], [1954], [1958], [1962], [1966], [1970], [1974], [1978], [1982], [1986], [1990], [1994], [1998], [2002], [2006], [2010], [2014], [2018], [2022], [2026], [2030], [2034], [2038], [2042], [2046], [2050], [2054], [2058], [2062], [2066], [2070], [2074], [2078], [2082], [2086], [2090], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2166], [2170], [2174], [2178], [2182], [2186], [2190], [2194], [2198], [2202], [2206], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2282], [2286], [2290], [2294], [2298], [2302], [2306], [2310], [2314], [2318], [2322], [2326], [2330], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2366], [2370], [2374], [2378], [2382], [2386], [2390], [2394], [2398], [2402], [2406], [2410], [2414], [2418], [2422], [2426], [2430], [2434], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2478], [2482], [2486], [2490], [2494], [2498], [2502], [2506], [2510], [2514], [2518], [2522], [2526], [2530], [2534], [2538], [2542], [2546], [2550], [2554], [2558], [2562], [2566], [2570], [2574], [2578], [2582], [2586], [2590], [2594], [2598], [2602], [2606], [2610], [2614], [2618], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2662], [2666], [2669], [2670], [2674], [2678], [2682], [2685], [2686], [2690], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2885], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3505], [3509], [3513], [3519], [3523], [3525], [3530], [3532], [3534], [3536], [3537], [3538], [3540], [3541]
[2018-11-12 17:30:27,486 INFO  L148    AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain]
[2018-11-12 17:30:27,486 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2)
[2018-11-12 17:30:35,371 INFO  L266    AbstractInterpreter]: Error location(s) were unreachable
[2018-11-12 17:30:35,372 INFO  L272    AbstractInterpreter]: Visited 819 different actions 2451 times. Merged at 7 different actions 16 times. Never widened. Performed 42085 root evaluator evaluations with a maximum evaluation depth of 6. Performed 42085 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 44 variables.
[2018-11-12 17:30:35,382 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:30:35,382 INFO  L398   sIntCurrentIteration]: Generating AbsInt predicates
[2018-11-12 17:30:37,648 INFO  L227   lantSequenceWeakener]: Weakened 929 states. On average, predicates are now at 78.65% of their original sizes.
[2018-11-12 17:30:37,648 INFO  L413   sIntCurrentIteration]: Unifying AI predicates
[2018-11-12 17:30:38,085 INFO  L415   sIntCurrentIteration]: We unified 931 AI predicates to 931
[2018-11-12 17:30:38,085 INFO  L424   sIntCurrentIteration]: Finished generation of AbsInt predicates
[2018-11-12 17:30:38,085 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-12 17:30:38,085 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21
[2018-11-12 17:30:38,086 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:30:38,086 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 17 states
[2018-11-12 17:30:38,087 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2018-11-12 17:30:38,087 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272
[2018-11-12 17:30:38,087 INFO  L87              Difference]: Start difference. First operand 8752 states and 13262 transitions. Second operand 17 states.
[2018-11-12 17:31:39,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-12 17:31:39,751 INFO  L93              Difference]: Finished difference Result 21821 states and 34184 transitions.
[2018-11-12 17:31:39,751 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2018-11-12 17:31:39,752 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states. Word has length 932
[2018-11-12 17:31:39,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-12 17:31:39,814 INFO  L225             Difference]: With dead ends: 21821
[2018-11-12 17:31:39,815 INFO  L226             Difference]: Without dead ends: 13910
[2018-11-12 17:31:39,837 INFO  L604         BasicCegarLoop]: 2 DeclaredPredicates, 957 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=239, Invalid=1567, Unknown=0, NotChecked=0, Total=1806
[2018-11-12 17:31:39,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13910 states.
[2018-11-12 17:31:40,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13910 to 13887.
[2018-11-12 17:31:40,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 13887 states.
[2018-11-12 17:31:40,118 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13887 states to 13887 states and 18938 transitions.
[2018-11-12 17:31:40,119 INFO  L78                 Accepts]: Start accepts. Automaton has 13887 states and 18938 transitions. Word has length 932
[2018-11-12 17:31:40,119 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-12 17:31:40,119 INFO  L480      AbstractCegarLoop]: Abstraction has 13887 states and 18938 transitions.
[2018-11-12 17:31:40,119 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 17 states.
[2018-11-12 17:31:40,120 INFO  L276                IsEmpty]: Start isEmpty. Operand 13887 states and 18938 transitions.
[2018-11-12 17:31:40,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 958
[2018-11-12 17:31:40,166 INFO  L367         BasicCegarLoop]: Found error trace
[2018-11-12 17:31:40,167 INFO  L375         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-11-12 17:31:40,167 INFO  L423      AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-12 17:31:40,168 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:31:40,168 INFO  L82        PathProgramCache]: Analyzing trace with hash -1180680291, now seen corresponding path program 1 times
[2018-11-12 17:31:40,168 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-11-12 17:31:40,169 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:31:40,169 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-12 17:31:40,169 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-12 17:31:40,170 INFO  L286   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-11-12 17:31:40,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-12 17:31:40,673 WARN  L179               SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4
[2018-11-12 17:31:41,009 WARN  L179               SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 14
[2018-11-12 17:31:43,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-12 17:31:43,071 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-12 17:31:43,071 INFO  L192   anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION
[2018-11-12 17:31:43,072 INFO  L200      CegarAbsIntRunner]: Running AI on error trace of length 958 with the following transitions: 
[2018-11-12 17:31:43,073 INFO  L202      CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [725], [727], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1926], [1930], [1934], [1938], [1942], [1946], [1950], [1954], [1958], [1962], [1966], [1970], [1974], [1978], [1982], [1986], [1990], [1994], [1998], [2002], [2006], [2010], [2014], [2018], [2022], [2026], [2030], [2034], [2038], [2042], [2046], [2050], [2054], [2058], [2062], [2066], [2070], [2074], [2078], [2082], [2086], [2090], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2166], [2170], [2174], [2178], [2182], [2186], [2190], [2194], [2198], [2202], [2206], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2282], [2286], [2290], [2294], [2298], [2302], [2306], [2310], [2314], [2318], [2322], [2326], [2330], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2366], [2370], [2374], [2378], [2382], [2386], [2390], [2394], [2398], [2402], [2406], [2410], [2414], [2418], [2422], [2426], [2430], [2434], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2478], [2482], [2486], [2490], [2494], [2498], [2502], [2506], [2510], [2514], [2518], [2522], [2526], [2530], [2534], [2538], [2542], [2546], [2550], [2554], [2558], [2562], [2566], [2570], [2574], [2578], [2582], [2586], [2590], [2594], [2598], [2602], [2606], [2610], [2614], [2618], [2622], [2625], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2678], [2682], [2686], [2690], [2694], [2697], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3017], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3505], [3509], [3513], [3519], [3523], [3525], [3530], [3532], [3534], [3536], [3537], [3538], [3540], [3541]
[2018-11-12 17:31:43,089 INFO  L148    AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain]
[2018-11-12 17:31:43,090 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2)
[2018-11-12 17:31:46,702 INFO  L266    AbstractInterpreter]: Error location(s) were unreachable
[2018-11-12 17:31:46,703 INFO  L272    AbstractInterpreter]: Visited 819 different actions 1632 times. Merged at 5 different actions 5 times. Never widened. Performed 24930 root evaluator evaluations with a maximum evaluation depth of 6. Performed 24930 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 44 variables.
[2018-11-12 17:31:46,711 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-12 17:31:46,711 INFO  L398   sIntCurrentIteration]: Generating AbsInt predicates
[2018-11-12 17:31:49,430 INFO  L227   lantSequenceWeakener]: Weakened 155 states. On average, predicates are now at 78.49% of their original sizes.
[2018-11-12 17:31:49,430 INFO  L413   sIntCurrentIteration]: Unifying AI predicates
[2018-11-12 17:31:50,162 INFO  L415   sIntCurrentIteration]: We unified 956 AI predicates to 956
[2018-11-12 17:31:50,162 INFO  L424   sIntCurrentIteration]: Finished generation of AbsInt predicates
[2018-11-12 17:31:50,162 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-12 17:31:50,163 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [11] total 33
[2018-11-12 17:31:50,163 INFO  L256   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-11-12 17:31:50,164 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 24 states
[2018-11-12 17:31:50,164 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2018-11-12 17:31:50,165 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552
[2018-11-12 17:31:50,165 INFO  L87              Difference]: Start difference. First operand 13887 states and 18938 transitions. Second operand 24 states.
Received shutdown request...
[2018-11-12 17:32:21,115 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2018-11-12 17:32:21,115 WARN  L549      AbstractCegarLoop]: Verification canceled
[2018-11-12 17:32:21,120 WARN  L205   ceAbstractionStarter]: Timeout
[2018-11-12 17:32:21,120 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:32:21 BoogieIcfgContainer
[2018-11-12 17:32:21,121 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-11-12 17:32:21,122 INFO  L168              Benchmark]: Toolchain (without parser) took 218793.51 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -880.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,123 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,123 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 2443.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,124 INFO  L168              Benchmark]: Boogie Procedure Inliner took 388.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,125 INFO  L168              Benchmark]: Boogie Preprocessor took 235.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,126 INFO  L168              Benchmark]: RCFGBuilder took 10250.33 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 199.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -173.1 MB). Peak memory consumption was 695.4 MB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,127 INFO  L168              Benchmark]: TraceAbstraction took 205471.58 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 117.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB.
[2018-11-12 17:32:21,135 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 2443.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 388.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 795.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 235.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 10250.33 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 199.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -173.1 MB). Peak memory consumption was 695.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 205471.58 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 117.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - TimeoutResultAtElement [Line: 4760]: Timeout (TraceAbstraction)
    Unable to prove that call of __VERIFIER_error() unreachable (line 4760). Cancelled while BasicCegarLoop was constructing difference of abstraction (13887states) and FLOYD_HOARE automaton (currently 16 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (4320 states constructedinput type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 205.3s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 168.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4052 SDtfs, 15904 SDslu, 1229 SDs, 0 SdLazy, 31255 SolverSat, 5003 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2871 GetRequests, 2736 SyntacticMatches, 22 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13887occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.6s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9993661701593902 AbsIntWeakeningRatio, 0.04935622317596566 AbsIntAvgWeakeningVarsNumRemoved, 33.41416309012875 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 80 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 5324 NumberOfCodeBlocks, 5324 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 5318 ConstructedInterpolants, 0 QuantifiedInterpolants, 9840303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 465/541 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown