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_label35.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:01:20,877 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:01:20,880 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:01:20,898 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:01:20,898 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:01:20,899 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:01:20,902 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-07 16:01:20,919 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:01:20,920 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:01:20,921 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:01:20,922 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:01:20,923 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:01:20,924 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:01:20,925 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:01:20,927 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:01:20,928 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:01:20,929 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:01:20,930 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:01:20,931 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:01:20,933 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:01:20,933 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:01:20,934 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:01:20,934 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-09-07 16:01:20,936 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:01:20,936 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:01:20,937 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:01:20,938 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:01:20,940 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:01:20,940 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 16:01:20,941 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2019-09-07 16:01:20,941 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 16:01:20,945 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:01:20,946 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 16:01:20,965 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:01:20,965 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:01:20,967 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:01:20,967 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:01:20,967 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:01:20,967 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:01:20,968 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:01:20,968 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:01:20,968 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:01:20,968 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:01:20,969 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:01:20,969 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:01:20,970 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:01:20,970 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:01:20,970 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:01:20,970 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:01:20,970 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:01:20,971 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:01:20,971 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:01:20,971 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:01:20,971 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:01:20,971 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:01:20,972 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:01:20,972 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:01:20,972 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:01:20,972 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:01:20,972 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:01:20,972 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:01:20,973 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:01:21,011 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:01:21,029 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:01:21,035 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:01:21,036 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:01:21,037 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:01:21,037 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label35.c
[2019-09-07 16:01:21,117 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6467b85e9/e0f983ba4800463381e8a32c15adab56/FLAG4403fc163
[2019-09-07 16:01:23,403 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:01:23,404 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label35.c
[2019-09-07 16:01:23,536 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6467b85e9/e0f983ba4800463381e8a32c15adab56/FLAG4403fc163
[2019-09-07 16:01:23,971 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6467b85e9/e0f983ba4800463381e8a32c15adab56
[2019-09-07 16:01:23,982 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:01:23,985 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:01:23,986 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:01:23,986 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:01:23,988 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:01:23,990 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:01:23" (1/1) ...
[2019-09-07 16:01:23,993 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72923802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:23, skipping insertion in model container
[2019-09-07 16:01:23,993 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:01:23" (1/1) ...
[2019-09-07 16:01:24,000 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:01:25,173 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:01:36,064 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:01:36,069 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:01:44,007 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:01:47,185 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:01:47,185 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47 WrapperNode
[2019-09-07 16:01:47,186 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:01:47,186 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:01:47,187 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:01:47,187 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:01:47,197 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:47,198 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:47,558 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:47,559 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:49,269 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:49,427 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:49,787 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (1/1) ...
[2019-09-07 16:01:50,225 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:01:50,225 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:01:50,226 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:01:50,226 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:01:50,227 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (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 16:01:50,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:01:50,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:01:50,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:01:50,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:01:50,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:01:50,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:01:50,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:01:50,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:01:50,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:01:50,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:01:50,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:01:50,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:01:50,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:01:50,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:01:50,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:01:50,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:01:50,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:01:50,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:01:50,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:01:50,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:01:50,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:01:50,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:01:50,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:01:50,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:01:50,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:01:50,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:01:50,289 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:01:50,290 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:01:50,291 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:01:50,291 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:01:50,291 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:01:50,291 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:01:50,291 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:01:50,292 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:01:50,292 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:01:50,292 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:01:50,292 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:01:50,292 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:01:50,293 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:01:50,293 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:01:50,294 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:01:50,295 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:01:50,295 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:01:50,295 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:01:50,295 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:01:50,296 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:01:50,296 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:01:50,296 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:01:50,296 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:01:50,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:01:50,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:01:50,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:01:50,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:01:50,298 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:02:37,926 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:02:37,926 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:02:37,933 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:02:37 BoogieIcfgContainer
[2019-09-07 16:02:37,934 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:02:37,937 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:02:37,937 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:02:37,940 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:02:37,941 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:01:23" (1/3) ...
[2019-09-07 16:02:37,942 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed7578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:02:37, skipping insertion in model container
[2019-09-07 16:02:37,942 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:01:47" (2/3) ...
[2019-09-07 16:02:37,942 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed7578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:02:37, skipping insertion in model container
[2019-09-07 16:02:37,942 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:02:37" (3/3) ...
[2019-09-07 16:02:37,945 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label35.c
[2019-09-07 16:02:37,955 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:02:37,968 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:02:37,986 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:02:38,064 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:02:38,065 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:02:38,065 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:02:38,065 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:02:38,066 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:02:38,066 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:02:38,066 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:02:38,066 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:02:38,066 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:02:38,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:02:39,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10191
[2019-09-07 16:02:39,776 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:02:39,785 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 16:02:39,789 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:02:39,797 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:02:39,802 INFO  L82        PathProgramCache]: Analyzing trace with hash 1887676994, now seen corresponding path program 1 times
[2019-09-07 16:02:39,804 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:02:39,805 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:02:39,847 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:02:39,847 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:02:39,847 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:02:42,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:04:20,116 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 16:04:20,119 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:04:20,121 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-07 16:04:20,141 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-07 16:04:20,155 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-07 16:04:20,157 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 16:04:20,160 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 4 states.
[2019-09-07 16:05:44,693 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:05:44,693 INFO  L93              Difference]: Finished difference Result 41642 states and 82628 transitions.
[2019-09-07 16:05:44,698 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-07 16:05:44,700 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10190
[2019-09-07 16:05:44,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:05:44,929 INFO  L225             Difference]: With dead ends: 41642
[2019-09-07 16:05:44,930 INFO  L226             Difference]: Without dead ends: 31130
[2019-09-07 16:05:44,966 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 16:05:45,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31130 states.
[2019-09-07 16:05:45,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756.
[2019-09-07 16:05:45,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:05:45,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 38374 transitions.
[2019-09-07 16:05:45,806 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 38374 transitions. Word has length 10190
[2019-09-07 16:05:45,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:05:45,826 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 38374 transitions.
[2019-09-07 16:05:45,826 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-07 16:05:45,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 38374 transitions.
[2019-09-07 16:05:46,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10200
[2019-09-07 16:05:46,641 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:05:46,646 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 16:05:46,647 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:05:46,647 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:05:46,652 INFO  L82        PathProgramCache]: Analyzing trace with hash -729215064, now seen corresponding path program 1 times
[2019-09-07 16:05:46,652 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:05:46,653 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:05:46,656 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:05:46,656 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:05:46,656 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:05:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:06:20,729 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 16:06:20,729 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:06:20,731 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 16:06:20,744 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 16:06:20,744 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 16:06:20,745 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 16:06:20,745 INFO  L87              Difference]: Start difference. First operand 20756 states and 38374 transitions. Second operand 5 states.
[2019-09-07 16:07:38,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:07:38,494 INFO  L93              Difference]: Finished difference Result 63358 states and 117241 transitions.
[2019-09-07 16:07:38,496 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:07:38,496 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10199
[2019-09-07 16:07:38,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:07:38,642 INFO  L225             Difference]: With dead ends: 63358
[2019-09-07 16:07:38,642 INFO  L226             Difference]: Without dead ends: 42608
[2019-09-07 16:07:38,686 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 16:07:38,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42608 states.
[2019-09-07 16:07:39,788 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326.
[2019-09-07 16:07:39,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 16:07:39,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 69685 transitions.
[2019-09-07 16:07:39,864 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 69685 transitions. Word has length 10199
[2019-09-07 16:07:39,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:07:39,866 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 69685 transitions.
[2019-09-07 16:07:39,866 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 16:07:39,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 69685 transitions.
[2019-09-07 16:07:41,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10203
[2019-09-07 16:07:41,050 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:07:41,057 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 16:07:41,057 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:07:41,057 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:07:41,061 INFO  L82        PathProgramCache]: Analyzing trace with hash -1996490386, now seen corresponding path program 1 times
[2019-09-07 16:07:41,062 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:07:41,062 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:07:41,064 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:07:41,064 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:07:41,065 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:07:41,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:08:16,201 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 16:08:16,201 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:08:16,202 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:08:16,208 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:08:16,208 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:08:16,208 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:08:16,208 INFO  L87              Difference]: Start difference. First operand 42326 states and 69685 transitions. Second operand 6 states.
[2019-09-07 16:09:38,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:09:38,852 INFO  L93              Difference]: Finished difference Result 130476 states and 219198 transitions.
[2019-09-07 16:09:38,852 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:09:38,852 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10202
[2019-09-07 16:09:38,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:09:39,109 INFO  L225             Difference]: With dead ends: 130476
[2019-09-07 16:09:39,109 INFO  L226             Difference]: Without dead ends: 88156
[2019-09-07 16:09:39,185 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 16:09:39,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88156 states.
[2019-09-07 16:09:41,325 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88156 to 87057.
[2019-09-07 16:09:41,326 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 87057 states.
[2019-09-07 16:09:41,503 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87057 states to 87057 states and 141239 transitions.
[2019-09-07 16:09:41,505 INFO  L78                 Accepts]: Start accepts. Automaton has 87057 states and 141239 transitions. Word has length 10202
[2019-09-07 16:09:41,507 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:09:41,507 INFO  L475      AbstractCegarLoop]: Abstraction has 87057 states and 141239 transitions.
[2019-09-07 16:09:41,507 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:09:41,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 87057 states and 141239 transitions.
[2019-09-07 16:09:42,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10208
[2019-09-07 16:09:42,298 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:09:42,303 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 16:09:42,304 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:09:42,304 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:09:42,306 INFO  L82        PathProgramCache]: Analyzing trace with hash 1730667124, now seen corresponding path program 1 times
[2019-09-07 16:09:42,307 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:09:42,307 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:09:42,309 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:09:42,310 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:09:42,310 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:09:42,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:10:19,624 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 16:10:19,625 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:10:19,625 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 16:10:19,639 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:10:22,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:10:22,608 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12305 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 16:10:22,797 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:11:21,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 16:11:21,431 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:11:21,434 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 16:11:21,469 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 16:11:21,469 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 16:11:21,470 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 16:11:21,470 INFO  L87              Difference]: Start difference. First operand 87057 states and 141239 transitions. Second operand 7 states.