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_label21.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 15:48:32,062 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:48:32,064 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:48:32,077 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:48:32,077 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:48:32,078 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:48:32,079 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-07 15:48:32,084 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:48:32,085 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 15:48:32,086 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 15:48:32,086 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:48:32,087 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:48:32,088 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:48:32,089 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:48:32,090 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:48:32,091 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:48:32,093 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:48:32,095 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:48:32,096 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:48:32,097 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:48:32,099 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:48:32,099 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:48:32,102 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:48:32,102 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:48:32,102 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:48:32,103 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:48:32,103 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:48:32,104 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:48:32,105 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 15:48:32,106 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:48:32,107 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:48:32,108 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:48:32,108 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:48:32,109 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2019-09-07 15:48:32,109 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 15:48:32,111 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:48:32,112 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 15:48:32,126 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:48:32,127 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:48:32,128 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:48:32,128 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:48:32,128 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:48:32,129 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:48:32,129 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:48:32,129 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:48:32,129 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:48:32,129 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:48:32,130 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:48:32,131 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:48:32,131 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:48:32,131 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:48:32,131 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:48:32,131 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:48:32,132 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:48:32,132 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:48:32,132 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:48:32,132 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:48:32,133 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:48:32,133 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:48:32,133 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:48:32,133 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:48:32,161 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:48:32,173 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:48:32,177 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:48:32,178 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:48:32,179 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:48:32,179 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label21.c
[2019-09-07 15:48:32,238 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021240b2/e438c90cf7b14370829e4c91ccc6892d/FLAG344194098
[2019-09-07 15:48:34,456 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:48:34,457 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label21.c
[2019-09-07 15:48:34,619 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021240b2/e438c90cf7b14370829e4c91ccc6892d/FLAG344194098
[2019-09-07 15:48:35,088 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021240b2/e438c90cf7b14370829e4c91ccc6892d
[2019-09-07 15:48:35,100 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:48:35,101 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:48:35,102 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:48:35,102 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:48:35,106 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:48:35,107 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:48:35" (1/1) ...
[2019-09-07 15:48:35,111 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25707088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:35, skipping insertion in model container
[2019-09-07 15:48:35,111 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:48:35" (1/1) ...
[2019-09-07 15:48:35,119 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:48:36,130 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:48:46,913 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:48:46,918 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:48:55,159 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:48:59,204 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:48:59,204 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59 WrapperNode
[2019-09-07 15:48:59,204 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:48:59,205 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:48:59,205 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:48:59,205 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:48:59,215 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:48:59,215 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:48:59,520 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:48:59,520 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:49:00,341 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:49:00,535 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:49:01,112 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
[2019-09-07 15:49:05,216 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:49:05,217 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:49:05,217 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:49:05,217 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:49:05,218 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:49:05,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:49:05,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:49:05,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:49:05,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:49:05,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:49:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:49:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:49:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:49:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:49:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:49:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:49:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:49:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:49:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:49:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:49:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:49:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:49:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:49:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:49:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:49:05,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:49:05,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:49:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:49:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:49:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:49:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:49:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:49:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:49:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:49:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:49:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:49:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:49:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:49:05,305 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:49:05,305 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:49:52,444 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:49:52,444 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:49:52,450 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:49:52 BoogieIcfgContainer
[2019-09-07 15:49:52,451 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:49:52,452 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:49:52,452 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:49:52,455 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:49:52,455 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:48:35" (1/3) ...
[2019-09-07 15:49:52,456 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41889632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:49:52, skipping insertion in model container
[2019-09-07 15:49:52,456 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:48:59" (2/3) ...
[2019-09-07 15:49:52,456 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41889632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:49:52, skipping insertion in model container
[2019-09-07 15:49:52,457 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:49:52" (3/3) ...
[2019-09-07 15:49:52,458 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label21.c
[2019-09-07 15:49:52,468 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:49:52,479 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:49:52,495 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:49:52,574 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:49:52,575 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:49:52,575 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:49:52,575 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:49:52,576 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:49:52,576 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:49:52,576 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:49:52,576 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:49:52,576 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:49:52,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:49:53,719 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10215
[2019-09-07 15:49:53,720 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:49:53,727 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 15:49:53,731 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:49:53,738 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:49:53,744 INFO  L82        PathProgramCache]: Analyzing trace with hash -1306565854, now seen corresponding path program 1 times
[2019-09-07 15:49:53,746 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:49:53,746 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:49:53,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:49:53,801 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:49:53,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:49:56,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:51:32,864 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 15:51:32,870 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:51:32,872 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:51:32,892 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:51:32,906 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:51:32,907 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:51:32,909 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 15:52:32,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:52:32,941 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 15:52:32,944 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:52:32,946 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10214
[2019-09-07 15:52:32,973 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:52:33,176 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 15:52:33,177 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 15:52:33,221 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:52:33,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 15:52:33,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 15:52:33,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:52:33,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40378 transitions.
[2019-09-07 15:52:33,970 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40378 transitions. Word has length 10214
[2019-09-07 15:52:33,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:52:33,993 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40378 transitions.
[2019-09-07 15:52:33,994 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:52:33,994 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40378 transitions.
[2019-09-07 15:52:34,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10223
[2019-09-07 15:52:34,621 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:52:34,627 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:52:34,628 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:52:34,628 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:52:34,632 INFO  L82        PathProgramCache]: Analyzing trace with hash 939466454, now seen corresponding path program 1 times
[2019-09-07 15:52:34,633 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:52:34,633 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:52:34,637 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:52:34,637 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:52:34,637 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:52:36,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:54:08,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:54:08,500 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:54:08,501 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:54:08,517 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:54:08,518 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:54:08,519 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:54:08,519 INFO  L87              Difference]: Start difference. First operand 20756 states and 40378 transitions. Second operand 3 states.
[2019-09-07 15:55:07,398 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:55:07,398 INFO  L93              Difference]: Finished difference Result 62254 states and 121673 transitions.
[2019-09-07 15:55:07,405 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:55:07,406 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10222
[2019-09-07 15:55:07,426 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:55:07,631 INFO  L225             Difference]: With dead ends: 62254
[2019-09-07 15:55:07,632 INFO  L226             Difference]: Without dead ends: 41504
[2019-09-07 15:55:07,698 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:55:07,798 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41504 states.
[2019-09-07 15:55:08,720 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 41504.
[2019-09-07 15:55:08,720 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41504 states.
[2019-09-07 15:55:08,846 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41504 states to 41504 states and 70826 transitions.
[2019-09-07 15:55:08,847 INFO  L78                 Accepts]: Start accepts. Automaton has 41504 states and 70826 transitions. Word has length 10222
[2019-09-07 15:55:08,861 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:55:08,861 INFO  L475      AbstractCegarLoop]: Abstraction has 41504 states and 70826 transitions.
[2019-09-07 15:55:08,861 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:55:08,862 INFO  L276                IsEmpty]: Start isEmpty. Operand 41504 states and 70826 transitions.
[2019-09-07 15:55:12,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10225
[2019-09-07 15:55:12,746 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:55:12,754 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:55:12,754 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:55:12,755 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:55:12,759 INFO  L82        PathProgramCache]: Analyzing trace with hash 21288594, now seen corresponding path program 1 times
[2019-09-07 15:55:12,759 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:55:12,759 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:55:12,762 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:55:12,763 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:55:12,765 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:55:13,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:55:44,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:55:44,098 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:55:44,098 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 15:55:44,104 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 15:55:44,104 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 15:55:44,105 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 15:55:44,105 INFO  L87              Difference]: Start difference. First operand 41504 states and 70826 transitions. Second operand 5 states.
[2019-09-07 15:56:57,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:56:57,696 INFO  L93              Difference]: Finished difference Result 105365 states and 185771 transitions.
[2019-09-07 15:56:57,701 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:56:57,702 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10224
[2019-09-07 15:56:57,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:56:57,964 INFO  L225             Difference]: With dead ends: 105365
[2019-09-07 15:56:57,965 INFO  L226             Difference]: Without dead ends: 63867
[2019-09-07 15:56:58,045 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 15:56:58,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63867 states.
[2019-09-07 15:56:59,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63867 to 63303.
[2019-09-07 15:56:59,259 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 63303 states.
[2019-09-07 15:56:59,389 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63303 states to 63303 states and 111648 transitions.
[2019-09-07 15:56:59,390 INFO  L78                 Accepts]: Start accepts. Automaton has 63303 states and 111648 transitions. Word has length 10224
[2019-09-07 15:56:59,392 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:56:59,392 INFO  L475      AbstractCegarLoop]: Abstraction has 63303 states and 111648 transitions.
[2019-09-07 15:56:59,392 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 15:56:59,392 INFO  L276                IsEmpty]: Start isEmpty. Operand 63303 states and 111648 transitions.
[2019-09-07 15:57:03,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10250
[2019-09-07 15:57:03,118 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:57:03,124 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:03,124 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:57:03,125 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:57:03,129 INFO  L82        PathProgramCache]: Analyzing trace with hash 2110331412, now seen corresponding path program 1 times
[2019-09-07 15:57:03,129 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:57:03,129 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:57:03,132 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:57:03,133 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:57:03,133 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:57:03,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:57:34,754 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:57:34,755 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:57:34,755 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:57:34,761 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:57:34,761 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:57:34,762 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:57:34,762 INFO  L87              Difference]: Start difference. First operand 63303 states and 111648 transitions. Second operand 6 states.
[2019-09-07 15:58:49,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:58:49,813 INFO  L93              Difference]: Finished difference Result 170292 states and 299345 transitions.
[2019-09-07 15:58:49,814 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:58:49,814 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10249
[2019-09-07 15:58:49,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:58:50,136 INFO  L225             Difference]: With dead ends: 170292
[2019-09-07 15:58:50,137 INFO  L226             Difference]: Without dead ends: 106995
[2019-09-07 15:58:50,260 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 15:58:50,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106995 states.
[2019-09-07 15:58:52,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106995 to 106979.
[2019-09-07 15:58:52,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 106979 states.
[2019-09-07 15:58:52,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106979 states to 106979 states and 162815 transitions.
[2019-09-07 15:58:52,360 INFO  L78                 Accepts]: Start accepts. Automaton has 106979 states and 162815 transitions. Word has length 10249
[2019-09-07 15:58:52,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:58:52,362 INFO  L475      AbstractCegarLoop]: Abstraction has 106979 states and 162815 transitions.
[2019-09-07 15:58:52,362 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:58:52,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 106979 states and 162815 transitions.
[2019-09-07 15:58:58,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10258
[2019-09-07 15:58:58,142 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:58:58,150 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:58:58,151 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:58:58,153 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:58:58,158 INFO  L82        PathProgramCache]: Analyzing trace with hash -567598624, now seen corresponding path program 1 times
[2019-09-07 15:58:58,158 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:58:58,158 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:58:58,164 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:58,164 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:58:58,164 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:58,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:41,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:59:41,854 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 15:59:41,854 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 15:59:41,873 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:59:45,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:45,099 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12360 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-07 15:59:45,287 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:00:16,930 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:00:16,947 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-07 16:00:16,949 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2019-09-07 16:00:16,980 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-07 16:00:16,981 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-07 16:00:16,982 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:00:16,982 INFO  L87              Difference]: Start difference. First operand 106979 states and 162815 transitions. Second operand 9 states.