java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label11.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 15:37:32,285 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:37:32,287 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:37:32,298 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:37:32,299 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:37:32,300 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:37:32,301 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 15:37:32,303 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 15:37:32,304 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 15:37:32,305 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:37:32,306 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 15:37:32,307 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 15:37:32,308 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:37:32,309 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:37:32,310 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:37:32,311 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:37:32,311 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:37:32,312 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:37:32,314 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:37:32,316 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:37:32,317 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:37:32,318 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:37:32,320 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:37:32,320 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:37:32,322 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:37:32,323 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:37:32,323 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:37:32,324 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:37:32,324 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:37:32,325 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:37:32,325 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 15:37:32,327 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:37:32,328 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:37:32,329 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:37:32,329 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:37:32,330 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 15:37:32,330 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 15:37:32,330 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 15:37:32,331 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 15:37:32,331 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:37:32,332 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 15:37:32,352 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:37:32,353 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:37:32,355 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:37:32,357 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:37:32,357 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:37:32,357 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:37:32,358 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:37:32,358 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:37:32,358 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:37:32,358 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:37:32,358 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:37:32,359 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:37:32,360 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:37:32,360 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:37:32,361 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:37:32,361 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:37:32,362 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:37:32,362 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:37:32,362 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:37:32,362 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:37:32,363 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:37:32,363 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:37:32,363 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:37:32,364 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:37:32,394 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:37:32,407 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:37:32,410 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:37:32,412 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:37:32,412 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:37:32,413 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label11.c
[2019-09-07 15:37:32,474 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b124131f8/270d959be7654f08ab7afc14642b5e56/FLAG9d52f4360
[2019-09-07 15:37:34,726 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:37:34,727 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label11.c
[2019-09-07 15:37:34,919 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b124131f8/270d959be7654f08ab7afc14642b5e56/FLAG9d52f4360
[2019-09-07 15:37:35,317 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b124131f8/270d959be7654f08ab7afc14642b5e56
[2019-09-07 15:37:35,327 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:37:35,328 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:37:35,329 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:37:35,330 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:37:35,333 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:37:35,334 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:37:35" (1/1) ...
[2019-09-07 15:37:35,337 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a93c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:35, skipping insertion in model container
[2019-09-07 15:37:35,338 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:37:35" (1/1) ...
[2019-09-07 15:37:35,346 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:37:36,367 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:37:48,005 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:37:48,011 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:37:58,103 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:37:59,327 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:37:59,327 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59 WrapperNode
[2019-09-07 15:37:59,327 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:37:59,328 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:37:59,328 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:37:59,328 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:37:59,339 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:37:59,339 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:37:59,762 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:37:59,763 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:38:00,983 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:38:01,228 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:38:01,571 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
[2019-09-07 15:38:05,771 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:38:05,772 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:38:05,772 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:38:05,772 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:38:05,773 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:38:05,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:38:05,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:38:05,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:38:05,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:38:05,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:38:05,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:38:05,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:38:05,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:38:05,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:38:05,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:38:05,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:38:05,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:38:05,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:38:05,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:38:05,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:38:05,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:38:05,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:38:05,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:38:05,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:38:05,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:38:05,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:38:05,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:38:05,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:38:05,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:38:05,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:38:05,850 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:38:05,851 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:38:05,852 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:38:05,853 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:38:05,854 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:38:05,855 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:38:05,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:38:05,857 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:38:05,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:38:05,858 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:38:05,858 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:38:05,858 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:38:05,858 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:38:53,138 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:38:53,139 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:38:53,146 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:38:53 BoogieIcfgContainer
[2019-09-07 15:38:53,146 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:38:53,147 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:38:53,147 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:38:53,151 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:38:53,151 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:37:35" (1/3) ...
[2019-09-07 15:38:53,152 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286068d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:38:53, skipping insertion in model container
[2019-09-07 15:38:53,152 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:37:59" (2/3) ...
[2019-09-07 15:38:53,153 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286068d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:38:53, skipping insertion in model container
[2019-09-07 15:38:53,153 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:38:53" (3/3) ...
[2019-09-07 15:38:53,155 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label11.c
[2019-09-07 15:38:53,165 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:38:53,178 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:38:53,197 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:38:53,907 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:38:53,908 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:38:53,908 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:38:53,908 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:38:53,909 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:38:53,909 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:38:53,909 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:38:53,910 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:38:53,910 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:38:54,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:38:55,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10197
[2019-09-07 15:38:55,427 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:38:55,435 INFO  L399         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:38:55,439 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:38:55,445 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:38:55,451 INFO  L82        PathProgramCache]: Analyzing trace with hash -1117123462, now seen corresponding path program 1 times
[2019-09-07 15:38:55,453 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:38:55,454 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:38:55,513 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:38:55,514 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:38:55,514 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:38:57,951 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:40:32,427 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:40:32,430 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:40:32,432 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-07 15:40:32,447 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-07 15:40:32,461 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-07 15:40:32,462 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 15:40:32,464 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 4 states.
[2019-09-07 15:42:01,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:42:01,349 INFO  L93              Difference]: Finished difference Result 41642 states and 82628 transitions.
[2019-09-07 15:42:01,354 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-07 15:42:01,356 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10196
[2019-09-07 15:42:01,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:42:01,569 INFO  L225             Difference]: With dead ends: 41642
[2019-09-07 15:42:01,569 INFO  L226             Difference]: Without dead ends: 31130
[2019-09-07 15:42:01,611 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 15:42:01,677 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31130 states.
[2019-09-07 15:42:02,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756.
[2019-09-07 15:42:02,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:42:02,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 38416 transitions.
[2019-09-07 15:42:02,316 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 38416 transitions. Word has length 10196
[2019-09-07 15:42:02,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:42:02,336 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 38416 transitions.
[2019-09-07 15:42:02,336 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-07 15:42:02,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 38416 transitions.
[2019-09-07 15:42:03,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10205
[2019-09-07 15:42:03,065 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:42:03,070 INFO  L399         BasicCegarLoop]: trace histogram [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, 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[2019-09-07 15:42:03,071 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:42:03,071 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:42:03,076 INFO  L82        PathProgramCache]: Analyzing trace with hash 373099822, now seen corresponding path program 1 times
[2019-09-07 15:42:03,076 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:42:03,076 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:42:03,079 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:42:03,079 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:42:03,079 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:42:04,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:43:33,542 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:43:33,543 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:43:33,544 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:43:33,559 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:43:33,560 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:43:33,560 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:43:33,560 INFO  L87              Difference]: Start difference. First operand 20756 states and 38416 transitions. Second operand 3 states.
[2019-09-07 15:44:31,440 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:44:31,443 INFO  L93              Difference]: Finished difference Result 62254 states and 115787 transitions.
[2019-09-07 15:44:31,446 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:44:31,447 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10204
[2019-09-07 15:44:31,465 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:44:31,597 INFO  L225             Difference]: With dead ends: 62254
[2019-09-07 15:44:31,597 INFO  L226             Difference]: Without dead ends: 41504
[2019-09-07 15:44:31,637 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:44:31,690 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41504 states.
[2019-09-07 15:44:32,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 41504.
[2019-09-07 15:44:32,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41504 states.
[2019-09-07 15:44:32,444 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41504 states to 41504 states and 67994 transitions.
[2019-09-07 15:44:32,446 INFO  L78                 Accepts]: Start accepts. Automaton has 41504 states and 67994 transitions. Word has length 10204
[2019-09-07 15:44:32,455 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:44:32,455 INFO  L475      AbstractCegarLoop]: Abstraction has 41504 states and 67994 transitions.
[2019-09-07 15:44:32,455 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:44:32,456 INFO  L276                IsEmpty]: Start isEmpty. Operand 41504 states and 67994 transitions.
[2019-09-07 15:44:33,565 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10206
[2019-09-07 15:44:33,566 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:44:33,574 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:44:33,575 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:44:33,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:44:33,580 INFO  L82        PathProgramCache]: Analyzing trace with hash 852184416, now seen corresponding path program 1 times
[2019-09-07 15:44:33,580 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:44:33,580 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:44:33,583 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:44:33,583 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:44:33,585 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:44:34,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:45:10,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:45:10,229 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:45:10,230 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 15:45:10,235 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 15:45:10,236 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 15:45:10,236 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 15:45:10,236 INFO  L87              Difference]: Start difference. First operand 41504 states and 67994 transitions. Second operand 5 states.
[2019-09-07 15:46:27,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:46:27,126 INFO  L93              Difference]: Finished difference Result 126694 states and 210051 transitions.
[2019-09-07 15:46:27,127 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:46:27,127 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10205
[2019-09-07 15:46:27,127 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:46:27,404 INFO  L225             Difference]: With dead ends: 126694
[2019-09-07 15:46:27,405 INFO  L226             Difference]: Without dead ends: 85196
[2019-09-07 15:46:27,517 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 15:46:27,608 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85196 states.
[2019-09-07 15:46:29,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85196 to 85180.
[2019-09-07 15:46:29,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 85180 states.
[2019-09-07 15:46:29,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85180 states to 85180 states and 128631 transitions.
[2019-09-07 15:46:29,414 INFO  L78                 Accepts]: Start accepts. Automaton has 85180 states and 128631 transitions. Word has length 10205
[2019-09-07 15:46:29,416 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:46:29,416 INFO  L475      AbstractCegarLoop]: Abstraction has 85180 states and 128631 transitions.
[2019-09-07 15:46:29,416 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 15:46:29,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 85180 states and 128631 transitions.
[2019-09-07 15:46:30,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10207
[2019-09-07 15:46:30,182 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:46:30,188 INFO  L399         BasicCegarLoop]: trace histogram [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, 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[2019-09-07 15:46:30,188 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:46:30,188 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:46:30,191 INFO  L82        PathProgramCache]: Analyzing trace with hash 1336048618, now seen corresponding path program 1 times
[2019-09-07 15:46:30,192 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:46:30,192 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:46:30,194 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:46:30,194 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:46:30,194 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:46:30,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:47:18,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:47:18,085 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:47:18,087 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 15:47:18,094 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 15:47:18,095 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 15:47:18,095 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 15:47:18,095 INFO  L87              Difference]: Start difference. First operand 85180 states and 128631 transitions. Second operand 5 states.
[2019-09-07 15:48:27,153 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:48:27,154 INFO  L93              Difference]: Finished difference Result 192181 states and 290848 transitions.
[2019-09-07 15:48:27,154 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:48:27,154 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10206
[2019-09-07 15:48:27,155 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:48:27,436 INFO  L225             Difference]: With dead ends: 192181
[2019-09-07 15:48:27,437 INFO  L226             Difference]: Without dead ends: 107007
[2019-09-07 15:48:27,545 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 15:48:27,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 107007 states.
[2019-09-07 15:48:28,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 107007 to 106991.
[2019-09-07 15:48:28,974 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 106991 states.
[2019-09-07 15:48:29,147 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106991 states to 106991 states and 158135 transitions.
[2019-09-07 15:48:29,148 INFO  L78                 Accepts]: Start accepts. Automaton has 106991 states and 158135 transitions. Word has length 10206
[2019-09-07 15:48:29,149 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:48:29,149 INFO  L475      AbstractCegarLoop]: Abstraction has 106991 states and 158135 transitions.
[2019-09-07 15:48:29,149 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 15:48:29,149 INFO  L276                IsEmpty]: Start isEmpty. Operand 106991 states and 158135 transitions.
[2019-09-07 15:48:33,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10209
[2019-09-07 15:48:33,725 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:48:33,736 INFO  L399         BasicCegarLoop]: trace histogram [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, 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[2019-09-07 15:48:33,736 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:48:33,737 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:48:33,741 INFO  L82        PathProgramCache]: Analyzing trace with hash -1396618586, now seen corresponding path program 1 times
[2019-09-07 15:48:33,741 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:48:33,741 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:48:33,743 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:48:33,743 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:48:33,743 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:48:34,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:49:07,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:49:07,824 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:49:07,825 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:49:07,832 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:49:07,832 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:49:07,832 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:49:07,833 INFO  L87              Difference]: Start difference. First operand 106991 states and 158135 transitions. Second operand 6 states.