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_label24.c


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This is Ultimate 0.1.24-112bae1
[2019-09-07 15:50:14,234 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:50:14,236 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:50:14,248 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:50:14,248 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:50:14,250 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:50:14,251 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 15:50:14,253 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 15:50:14,255 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 15:50:14,256 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:50:14,257 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 15:50:14,258 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 15:50:14,258 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:50:14,259 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:50:14,260 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:50:14,262 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:50:14,262 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:50:14,263 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:50:14,265 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:50:14,267 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:50:14,269 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:50:14,270 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:50:14,272 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:50:14,273 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:50:14,275 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:50:14,276 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:50:14,276 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:50:14,277 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:50:14,278 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:50:14,279 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:50:14,279 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-09-07 15:50:14,280 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-09-07 15:50:14,281 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:50:14,282 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:50:14,283 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:50:14,283 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:50:14,284 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 15:50:14,284 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 15:50:14,285 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 15:50:14,286 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 15:50:14,286 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:50:14,287 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 15:50:14,314 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:50:14,315 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:50:14,316 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:50:14,316 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:50:14,316 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:50:14,317 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:50:14,317 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:50:14,317 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:50:14,318 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:50:14,318 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:50:14,319 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:50:14,319 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:50:14,319 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:50:14,319 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:50:14,319 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:50:14,320 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:50:14,320 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:50:14,321 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:50:14,322 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:50:14,322 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:50:14,322 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:50:14,322 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:50:14,323 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:50:14,323 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:50:14,323 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:50:14,323 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:50:14,324 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:50:14,324 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:50:14,324 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:50:14,375 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:50:14,397 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:50:14,401 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:50:14,403 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:50:14,403 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:50:14,404 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label24.c
[2019-09-07 15:50:14,481 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6321171d2/f6155bbd4eda430a811fd20a2c4ad603/FLAG6258724d0
[2019-09-07 15:50:16,662 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:50:16,663 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label24.c
[2019-09-07 15:50:16,839 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6321171d2/f6155bbd4eda430a811fd20a2c4ad603/FLAG6258724d0
[2019-09-07 15:50:17,256 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6321171d2/f6155bbd4eda430a811fd20a2c4ad603
[2019-09-07 15:50:17,268 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:50:17,269 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:50:17,270 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:50:17,271 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:50:17,274 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:50:17,275 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:50:17" (1/1) ...
[2019-09-07 15:50:17,277 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21513468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:17, skipping insertion in model container
[2019-09-07 15:50:17,278 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:50:17" (1/1) ...
[2019-09-07 15:50:17,285 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:50:18,330 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:50:29,904 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:50:29,909 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:50:40,299 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:50:41,545 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:50:41,545 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41 WrapperNode
[2019-09-07 15:50:41,545 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:50:41,546 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:50:41,546 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:50:41,546 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:50:41,556 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:41,557 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:41,955 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:41,956 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:42,922 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:43,100 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:43,481 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (1/1) ...
[2019-09-07 15:50:43,936 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:50:43,937 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:50:43,937 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:50:43,937 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:50:43,938 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (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 15:50:44,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:50:44,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:50:44,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:50:44,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:50:44,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:50:44,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:50:44,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:50:44,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:50:44,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:50:44,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:50:44,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:50:44,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:50:44,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:50:44,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:50:44,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:50:44,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:50:44,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:50:44,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:50:44,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:50:44,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:50:44,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:50:44,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:50:44,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:50:44,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:50:44,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:50:44,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:50:44,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:50:44,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:50:44,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:50:44,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:50:44,023 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:50:44,023 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:50:44,024 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:50:44,025 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:50:44,026 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:50:44,026 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:50:44,026 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:50:44,026 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:50:44,027 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:50:44,028 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:50:44,028 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:50:44,028 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:50:44,028 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:50:44,028 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:50:44,029 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:50:44,029 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:50:44,029 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:50:44,030 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:50:44,031 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:50:44,031 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:50:44,031 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:50:44,032 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:50:44,032 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:50:44,032 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:50:44,033 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:50:44,033 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:50:44,034 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:50:44,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:50:44,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:51:31,400 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:51:31,400 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:51:31,407 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:51:31 BoogieIcfgContainer
[2019-09-07 15:51:31,407 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:51:31,408 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:51:31,408 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:51:31,414 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:51:31,415 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:50:17" (1/3) ...
[2019-09-07 15:51:31,415 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b6f932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:51:31, skipping insertion in model container
[2019-09-07 15:51:31,416 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:41" (2/3) ...
[2019-09-07 15:51:31,416 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b6f932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:51:31, skipping insertion in model container
[2019-09-07 15:51:31,416 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:51:31" (3/3) ...
[2019-09-07 15:51:31,421 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label24.c
[2019-09-07 15:51:31,431 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:51:31,445 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:51:31,464 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:51:31,550 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:51:31,550 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:51:31,550 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:51:31,551 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:51:31,551 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:51:31,551 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:51:31,551 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:51:31,551 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:51:31,551 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:51:31,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:51:32,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10241
[2019-09-07 15:51:32,811 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:51:32,819 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 15:51:32,822 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:51:32,836 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:51:32,844 INFO  L82        PathProgramCache]: Analyzing trace with hash 1092378474, now seen corresponding path program 1 times
[2019-09-07 15:51:32,846 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:51:32,846 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:51:33,260 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:33,261 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:51:33,262 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:35,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:53:15,780 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 15:53:15,783 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:53:15,785 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-07 15:53:15,808 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-07 15:53:15,822 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-07 15:53:15,824 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 15:53:15,827 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 4 states.
[2019-09-07 15:54:39,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:54:39,014 INFO  L93              Difference]: Finished difference Result 41642 states and 82628 transitions.
[2019-09-07 15:54:39,019 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-07 15:54:39,021 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10240
[2019-09-07 15:54:39,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:54:39,238 INFO  L225             Difference]: With dead ends: 41642
[2019-09-07 15:54:39,238 INFO  L226             Difference]: Without dead ends: 31130
[2019-09-07 15:54:39,275 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 48 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 15:54:39,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31130 states.
[2019-09-07 15:54:39,905 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756.
[2019-09-07 15:54:39,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:54:39,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40168 transitions.
[2019-09-07 15:54:39,969 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40168 transitions. Word has length 10240
[2019-09-07 15:54:39,989 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:54:39,990 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40168 transitions.
[2019-09-07 15:54:39,990 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-07 15:54:39,990 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40168 transitions.
[2019-09-07 15:54:40,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10250
[2019-09-07 15:54:40,896 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:54:40,902 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 15:54:40,903 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:54:40,904 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:54:40,909 INFO  L82        PathProgramCache]: Analyzing trace with hash 101474128, now seen corresponding path program 1 times
[2019-09-07 15:54:40,909 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:54:40,909 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:54:40,912 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:54:40,912 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:54:40,913 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:54:41,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:55:13,413 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 15:55:13,413 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:55:13,414 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 15:55:13,437 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 15:55:13,437 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 15:55:13,438 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 15:55:13,440 INFO  L87              Difference]: Start difference. First operand 20756 states and 40168 transitions. Second operand 5 states.
[2019-09-07 15:56:24,749 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:56:24,750 INFO  L93              Difference]: Finished difference Result 63358 states and 122623 transitions.
[2019-09-07 15:56:24,750 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:56:24,750 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10249
[2019-09-07 15:56:24,751 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:56:24,898 INFO  L225             Difference]: With dead ends: 63358
[2019-09-07 15:56:24,898 INFO  L226             Difference]: Without dead ends: 42608
[2019-09-07 15:56:24,945 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 15:56:24,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42608 states.
[2019-09-07 15:56:25,932 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326.
[2019-09-07 15:56:25,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 15:56:26,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72445 transitions.
[2019-09-07 15:56:26,005 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72445 transitions. Word has length 10249
[2019-09-07 15:56:26,007 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:56:26,007 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72445 transitions.
[2019-09-07 15:56:26,007 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 15:56:26,007 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72445 transitions.
[2019-09-07 15:56:29,741 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10253
[2019-09-07 15:56:29,741 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:56:29,747 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 15:56:29,748 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:56:29,749 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:56:29,753 INFO  L82        PathProgramCache]: Analyzing trace with hash 1286605718, now seen corresponding path program 1 times
[2019-09-07 15:56:29,753 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:56:29,753 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:56:29,755 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:56:29,755 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:56:29,756 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:56:30,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:57:00,494 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 15:57:00,495 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:57:00,496 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:57:00,502 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:57:00,502 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:57:00,502 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:57:00,502 INFO  L87              Difference]: Start difference. First operand 42326 states and 72445 transitions. Second operand 6 states.
[2019-09-07 15:58:21,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:58:21,999 INFO  L93              Difference]: Finished difference Result 108659 states and 186856 transitions.
[2019-09-07 15:58:21,999 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:58:22,000 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10252
[2019-09-07 15:58:22,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:58:22,194 INFO  L225             Difference]: With dead ends: 108659
[2019-09-07 15:58:22,194 INFO  L226             Difference]: Without dead ends: 66339
[2019-09-07 15:58:22,293 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 15:58:22,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66339 states.
[2019-09-07 15:58:23,824 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66339 to 65101.
[2019-09-07 15:58:23,824 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 65101 states.
[2019-09-07 15:58:23,963 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65101 states to 65101 states and 105902 transitions.
[2019-09-07 15:58:23,965 INFO  L78                 Accepts]: Start accepts. Automaton has 65101 states and 105902 transitions. Word has length 10252
[2019-09-07 15:58:23,968 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:58:23,969 INFO  L475      AbstractCegarLoop]: Abstraction has 65101 states and 105902 transitions.
[2019-09-07 15:58:23,969 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:58:23,969 INFO  L276                IsEmpty]: Start isEmpty. Operand 65101 states and 105902 transitions.
[2019-09-07 15:58:25,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10258
[2019-09-07 15:58:25,024 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:58:25,031 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 15:58:25,031 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:58:25,031 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:58:25,036 INFO  L82        PathProgramCache]: Analyzing trace with hash 1718511388, now seen corresponding path program 1 times
[2019-09-07 15:58:25,036 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:58:25,036 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:58:25,043 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:25,043 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:58:25,043 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:25,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:58:59,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:58:59,631 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 15:58:59,631 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 15:58:59,674 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:59:02,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:02,838 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12355 conjuncts, 11 conjunts are in the unsatisfiable core
[2019-09-07 15:59:03,102 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 15:59:39,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2019-09-07 15:59:39,361 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 15:59:39,363 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9
[2019-09-07 15:59:39,397 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-07 15:59:39,397 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-07 15:59:39,398 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2019-09-07 15:59:39,398 INFO  L87              Difference]: Start difference. First operand 65101 states and 105902 transitions. Second operand 9 states.
[2019-09-07 16:02:25,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:02:25,981 INFO  L93              Difference]: Finished difference Result 360217 states and 661135 transitions.
[2019-09-07 16:02:25,981 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2019-09-07 16:02:25,981 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 10257
[2019-09-07 16:02:25,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:02:27,357 INFO  L225             Difference]: With dead ends: 360217
[2019-09-07 16:02:27,358 INFO  L226             Difference]: Without dead ends: 295122
[2019-09-07 16:02:27,608 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10296 GetRequests, 10264 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122
[2019-09-07 16:02:27,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 295122 states.
[2019-09-07 16:02:39,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 295122 to 292432.
[2019-09-07 16:02:39,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 292432 states.