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_label58.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:24:22,389 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:24:22,391 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:24:22,404 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:24:22,404 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:24:22,405 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:24:22,407 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:24:22,409 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:24:22,411 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:24:22,411 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:24:22,412 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:24:22,414 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:24:22,414 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:24:22,415 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:24:22,416 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:24:22,417 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:24:22,418 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:24:22,419 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:24:22,421 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:24:22,423 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:24:22,424 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:24:22,425 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:24:22,427 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:24:22,427 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:24:22,430 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:24:22,430 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:24:22,430 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:24:22,431 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:24:22,432 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 16:24:22,433 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:24:22,433 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:24:22,434 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:24:22,435 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:24:22,437 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:24:22,437 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 16:24:22,438 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 16:24:22,440 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:24:22,441 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 16:24:22,456 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:24:22,456 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:24:22,458 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:24:22,458 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:24:22,458 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:24:22,458 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:24:22,459 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:24:22,459 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:24:22,459 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:24:22,459 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:24:22,460 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:24:22,460 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:24:22,460 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:24:22,460 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:24:22,460 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:24:22,461 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:24:22,461 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:24:22,461 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:24:22,461 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:24:22,461 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:24:22,462 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:24:22,462 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:24:22,462 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:24:22,462 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:24:22,463 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:24:22,463 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:24:22,463 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:24:22,463 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:24:22,463 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:24:22,494 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:24:22,508 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:24:22,512 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:24:22,513 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:24:22,514 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:24:22,515 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label58.c
[2019-09-07 16:24:22,582 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22153ff95/2f8e75174c174b3d876d9bcfec0f7c51/FLAG12195d44c
[2019-09-07 16:24:24,907 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:24:24,908 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label58.c
[2019-09-07 16:24:25,078 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22153ff95/2f8e75174c174b3d876d9bcfec0f7c51/FLAG12195d44c
[2019-09-07 16:24:25,399 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22153ff95/2f8e75174c174b3d876d9bcfec0f7c51
[2019-09-07 16:24:25,416 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:24:25,419 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:24:25,421 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:24:25,421 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:24:25,426 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:24:25,427 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:24:25" (1/1) ...
[2019-09-07 16:24:25,431 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c100297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:25, skipping insertion in model container
[2019-09-07 16:24:25,431 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:24:25" (1/1) ...
[2019-09-07 16:24:25,440 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:24:26,861 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:24:39,432 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:24:39,438 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:24:47,573 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:24:48,370 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:24:48,371 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48 WrapperNode
[2019-09-07 16:24:48,371 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:24:48,372 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:24:48,372 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:24:48,372 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:24:48,383 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:48,383 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:50,961 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:50,962 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:52,056 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:52,265 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:52,652 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (1/1) ...
[2019-09-07 16:24:53,089 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:24:53,090 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:24:53,090 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:24:53,090 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:24:53,091 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (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 16:24:53,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:24:53,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:24:53,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:24:53,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:24:53,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:24:53,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:24:53,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:24:53,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:24:53,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:24:53,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:24:53,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:24:53,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:24:53,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:24:53,158 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:24:53,158 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:24:53,158 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:24:53,158 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:24:53,158 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:24:53,159 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:24:53,160 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:24:53,161 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:24:53,162 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:24:53,163 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:24:53,164 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:24:53,165 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:24:53,165 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:24:53,165 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:24:53,165 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:24:53,165 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:24:53,166 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:24:53,166 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:25:41,340 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:25:41,340 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:25:41,346 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:25:41 BoogieIcfgContainer
[2019-09-07 16:25:41,346 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:25:41,347 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:25:41,347 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:25:41,351 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:25:41,351 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:24:25" (1/3) ...
[2019-09-07 16:25:41,352 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d60ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:25:41, skipping insertion in model container
[2019-09-07 16:25:41,352 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:24:48" (2/3) ...
[2019-09-07 16:25:41,352 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d60ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:25:41, skipping insertion in model container
[2019-09-07 16:25:41,352 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:25:41" (3/3) ...
[2019-09-07 16:25:41,354 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label58.c
[2019-09-07 16:25:41,364 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:25:41,375 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:25:41,393 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:25:41,471 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:25:41,472 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:25:41,472 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:25:41,472 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:25:41,473 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:25:41,473 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:25:41,473 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:25:41,474 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:25:41,474 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:25:41,615 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:25:42,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10183
[2019-09-07 16:25:42,612 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:25:42,620 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 16:25:42,623 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:25:42,638 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:25:42,647 INFO  L82        PathProgramCache]: Analyzing trace with hash -1043108702, now seen corresponding path program 1 times
[2019-09-07 16:25:42,649 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:25:42,650 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:25:42,707 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:42,708 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:25:42,709 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:45,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:27:23,431 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 16:27:23,435 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:27:23,436 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:27:23,455 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:27:23,469 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:27:23,470 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:27:23,473 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:28:24,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:28:24,102 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:28:24,114 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:28:24,116 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10182
[2019-09-07 16:28:24,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:28:24,355 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:28:24,355 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:28:24,403 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 16:28:24,478 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:28:25,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:28:25,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:28:25,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40306 transitions.
[2019-09-07 16:28:25,238 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40306 transitions. Word has length 10182
[2019-09-07 16:28:25,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:28:25,259 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40306 transitions.
[2019-09-07 16:28:25,259 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:28:25,260 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40306 transitions.
[2019-09-07 16:28:25,951 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10201
[2019-09-07 16:28:25,951 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:28:25,956 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:28:25,957 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:28:25,958 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:28:25,962 INFO  L82        PathProgramCache]: Analyzing trace with hash -221315326, now seen corresponding path program 1 times
[2019-09-07 16:28:25,962 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:28:25,962 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:28:25,965 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:28:25,965 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:28:25,965 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:28:26,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:29:03,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:29:03,575 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:29:03,576 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:29:03,590 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:29:03,590 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:29:03,590 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:29:03,590 INFO  L87              Difference]: Start difference. First operand 20756 states and 40306 transitions. Second operand 6 states.
[2019-09-07 16:30:16,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:30:16,400 INFO  L93              Difference]: Finished difference Result 63358 states and 123037 transitions.
[2019-09-07 16:30:16,404 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:30:16,405 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10200
[2019-09-07 16:30:16,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:30:16,562 INFO  L225             Difference]: With dead ends: 63358
[2019-09-07 16:30:16,563 INFO  L226             Difference]: Without dead ends: 42608
[2019-09-07 16:30:16,614 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 16:30:16,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42608 states.
[2019-09-07 16:30:17,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326.
[2019-09-07 16:30:17,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 16:30:17,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72397 transitions.
[2019-09-07 16:30:17,792 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72397 transitions. Word has length 10200
[2019-09-07 16:30:17,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:30:17,794 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72397 transitions.
[2019-09-07 16:30:17,794 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:30:17,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72397 transitions.
[2019-09-07 16:30:19,173 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10209
[2019-09-07 16:30:19,173 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:30:19,179 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:30:19,180 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:30:19,181 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:30:19,184 INFO  L82        PathProgramCache]: Analyzing trace with hash -1274378826, now seen corresponding path program 1 times
[2019-09-07 16:30:19,185 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:30:19,185 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:30:19,187 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:30:19,187 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:30:19,187 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:30:19,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:30:54,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:30:54,034 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:30:54,034 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 16:30:54,048 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:31:00,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:31:00,103 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12308 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-07 16:31:00,334 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:31:36,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:31:36,062 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-07 16:31:36,064 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2019-09-07 16:31:36,084 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-07 16:31:36,084 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-07 16:31:36,085 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:31:36,085 INFO  L87              Difference]: Start difference. First operand 42326 states and 72397 transitions. Second operand 9 states.
[2019-09-07 16:34:56,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:34:56,849 INFO  L93              Difference]: Finished difference Result 236795 states and 442985 transitions.
[2019-09-07 16:34:56,857 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. 
[2019-09-07 16:34:56,857 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 10208
[2019-09-07 16:34:56,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:34:57,666 INFO  L225             Difference]: With dead ends: 236795
[2019-09-07 16:34:57,667 INFO  L226             Difference]: Without dead ends: 194475
[2019-09-07 16:34:57,796 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10263 GetRequests, 10224 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=1308, Unknown=0, NotChecked=0, Total=1640
[2019-09-07 16:34:57,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 194475 states.
[2019-09-07 16:35:03,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 194475 to 184212.
[2019-09-07 16:35:03,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 184212 states.
[2019-09-07 16:35:04,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184212 states to 184212 states and 282753 transitions.
[2019-09-07 16:35:04,007 INFO  L78                 Accepts]: Start accepts. Automaton has 184212 states and 282753 transitions. Word has length 10208
[2019-09-07 16:35:04,009 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:35:04,009 INFO  L475      AbstractCegarLoop]: Abstraction has 184212 states and 282753 transitions.
[2019-09-07 16:35:04,009 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-09-07 16:35:04,010 INFO  L276                IsEmpty]: Start isEmpty. Operand 184212 states and 282753 transitions.
[2019-09-07 16:35:09,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10214
[2019-09-07 16:35:09,395 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:35:09,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:35:09,400 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:35:09,401 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:35:09,403 INFO  L82        PathProgramCache]: Analyzing trace with hash 846702108, now seen corresponding path program 1 times
[2019-09-07 16:35:09,403 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:35:09,403 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:35:09,405 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:35:09,405 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:35:09,405 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:35:09,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:35:44,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:35:44,804 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:35:44,805 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:35:44,813 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:35:44,814 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:35:44,814 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:35:44,814 INFO  L87              Difference]: Start difference. First operand 184212 states and 282753 transitions. Second operand 6 states.