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_label25.c


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This is Ultimate 0.1.24-112bae1
[2019-09-07 15:50:16,218 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:50:16,220 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:50:16,232 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:50:16,232 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:50:16,233 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:50:16,234 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 15:50:16,236 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 15:50:16,238 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 15:50:16,238 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:50:16,239 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 15:50:16,240 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 15:50:16,241 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:50:16,242 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:50:16,243 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:50:16,244 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:50:16,245 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:50:16,246 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:50:16,248 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:50:16,250 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:50:16,251 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:50:16,253 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:50:16,254 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:50:16,254 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:50:16,257 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:50:16,257 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:50:16,258 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:50:16,258 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:50:16,259 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:50:16,260 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:50:16,260 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-09-07 15:50:16,261 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-09-07 15:50:16,262 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:50:16,263 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:50:16,264 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:50:16,264 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:50:16,265 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 15:50:16,265 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 15:50:16,265 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 15:50:16,266 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 15:50:16,267 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:50:16,268 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 15:50:16,283 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:50:16,283 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:50:16,285 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:50:16,285 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:50:16,285 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:50:16,285 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:50:16,286 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:50:16,286 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:50:16,286 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:50:16,286 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:50:16,286 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:50:16,287 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:50:16,287 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:50:16,287 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:50:16,287 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:50:16,287 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:50:16,288 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:50:16,288 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:50:16,288 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:50:16,288 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:50:16,288 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:50:16,288 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:50:16,289 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:50:16,289 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:50:16,289 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:50:16,289 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:50:16,290 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:50:16,290 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:50:16,290 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:50:16,318 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:50:16,331 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:50:16,338 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:50:16,339 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:50:16,340 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:50:16,341 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label25.c
[2019-09-07 15:50:16,422 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2b6ad0c/4991e28b8e5246629c32e8a381294316/FLAG7d5318ebe
[2019-09-07 15:50:18,753 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:50:18,754 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label25.c
[2019-09-07 15:50:19,017 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2b6ad0c/4991e28b8e5246629c32e8a381294316/FLAG7d5318ebe
[2019-09-07 15:50:19,276 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2b6ad0c/4991e28b8e5246629c32e8a381294316
[2019-09-07 15:50:19,289 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:50:19,290 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:50:19,291 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:50:19,292 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:50:19,295 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:50:19,296 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:50:19" (1/1) ...
[2019-09-07 15:50:19,299 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c630f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:19, skipping insertion in model container
[2019-09-07 15:50:19,299 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:50:19" (1/1) ...
[2019-09-07 15:50:19,306 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:50:20,359 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:50:33,991 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:50:33,996 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:50:42,309 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:50:43,089 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:50:43,090 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43 WrapperNode
[2019-09-07 15:50:43,090 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:50:43,091 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:50:43,091 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:50:43,091 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:50:43,105 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:43,105 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:43,494 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:43,495 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:46,764 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:46,935 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:47,276 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
[2019-09-07 15:50:47,607 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:50:47,608 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:50:47,608 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:50:47,608 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:50:47,609 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:50:47,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:50:47,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:50:47,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:50:47,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:50:47,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:50:47,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:50:47,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:50:47,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:50:47,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:50:47,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:50:47,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:50:47,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:50:47,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:50:47,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:50:47,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:50:47,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:50:47,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:50:47,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:50:47,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:50:47,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:50:47,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:50:47,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:50:47,664 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:50:47,664 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:50:47,664 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:50:47,664 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:50:47,664 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:50:47,665 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:50:47,666 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:50:47,667 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:50:47,668 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:50:47,669 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:50:47,670 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:50:47,671 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:50:47,671 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:50:47,671 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:50:47,671 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:51:35,957 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:51:35,958 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:51:35,964 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:51:35 BoogieIcfgContainer
[2019-09-07 15:51:35,964 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:51:35,965 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:51:35,965 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:51:35,968 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:51:35,969 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:50:19" (1/3) ...
[2019-09-07 15:51:35,970 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10701486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:51:35, skipping insertion in model container
[2019-09-07 15:51:35,970 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:50:43" (2/3) ...
[2019-09-07 15:51:35,970 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10701486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:51:35, skipping insertion in model container
[2019-09-07 15:51:35,971 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:51:35" (3/3) ...
[2019-09-07 15:51:35,972 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label25.c
[2019-09-07 15:51:35,982 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:51:35,995 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:51:36,013 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:51:36,096 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:51:36,097 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:51:36,097 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:51:36,097 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:51:36,097 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:51:36,097 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:51:36,098 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:51:36,098 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:51:36,098 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:51:36,242 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:51:37,599 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10237
[2019-09-07 15:51:37,599 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:51:37,606 INFO  L399         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:51:37,610 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:51:37,625 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:51:37,633 INFO  L82        PathProgramCache]: Analyzing trace with hash 694788250, now seen corresponding path program 1 times
[2019-09-07 15:51:37,635 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:51:37,636 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:51:37,693 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:37,693 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:51:37,693 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:40,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:53:24,091 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:53:24,095 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:53:24,097 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-07 15:53:24,120 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-07 15:53:24,135 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-07 15:53:24,143 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 15:53:24,146 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 4 states.
[2019-09-07 15:54:50,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:54:50,409 INFO  L93              Difference]: Finished difference Result 41642 states and 82628 transitions.
[2019-09-07 15:54:50,409 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-07 15:54:50,411 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10236
[2019-09-07 15:54:50,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:54:50,665 INFO  L225             Difference]: With dead ends: 41642
[2019-09-07 15:54:50,665 INFO  L226             Difference]: Without dead ends: 31130
[2019-09-07 15:54:50,710 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 48 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 15:54:50,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31130 states.
[2019-09-07 15:54:51,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756.
[2019-09-07 15:54:51,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:54:51,673 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40162 transitions.
[2019-09-07 15:54:51,676 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40162 transitions. Word has length 10236
[2019-09-07 15:54:51,700 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:54:51,700 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40162 transitions.
[2019-09-07 15:54:51,700 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-07 15:54:51,701 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40162 transitions.
[2019-09-07 15:54:52,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10246
[2019-09-07 15:54:52,359 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:54:52,365 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:54:52,365 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:54:52,366 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:54:52,370 INFO  L82        PathProgramCache]: Analyzing trace with hash 1282507648, now seen corresponding path program 1 times
[2019-09-07 15:54:52,371 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:54:52,371 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:54:52,374 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:54:52,374 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:54:52,374 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:54:52,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:55:27,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:55:27,078 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:55:27,079 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 15:55:27,101 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 15:55:27,101 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 15:55:27,102 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 15:55:27,102 INFO  L87              Difference]: Start difference. First operand 20756 states and 40162 transitions. Second operand 5 states.
[2019-09-07 15:56:40,193 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:56:40,193 INFO  L93              Difference]: Finished difference Result 63358 states and 122605 transitions.
[2019-09-07 15:56:40,194 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:56:40,194 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10245
[2019-09-07 15:56:40,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:56:40,347 INFO  L225             Difference]: With dead ends: 63358
[2019-09-07 15:56:40,347 INFO  L226             Difference]: Without dead ends: 42608
[2019-09-07 15:56:40,389 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 15:56:40,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42608 states.
[2019-09-07 15:56:41,595 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326.
[2019-09-07 15:56:41,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 15:56:41,695 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72451 transitions.
[2019-09-07 15:56:41,696 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72451 transitions. Word has length 10245
[2019-09-07 15:56:41,698 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:56:41,699 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72451 transitions.
[2019-09-07 15:56:41,699 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 15:56:41,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72451 transitions.
[2019-09-07 15:56:42,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10249
[2019-09-07 15:56:42,748 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:56:42,757 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:56:42,758 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:56:42,758 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:56:42,762 INFO  L82        PathProgramCache]: Analyzing trace with hash -1414380858, now seen corresponding path program 1 times
[2019-09-07 15:56:42,762 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:56:42,762 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:56:42,764 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:56:42,764 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:56:42,765 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:56:46,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:57:19,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:57:19,903 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:57:19,904 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:57:19,910 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:57:19,910 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:57:19,910 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:57:19,910 INFO  L87              Difference]: Start difference. First operand 42326 states and 72451 transitions. Second operand 6 states.
[2019-09-07 15:58:45,914 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:58:45,915 INFO  L93              Difference]: Finished difference Result 108656 states and 186840 transitions.
[2019-09-07 15:58:45,915 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:58:45,915 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10248
[2019-09-07 15:58:45,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:58:46,103 INFO  L225             Difference]: With dead ends: 108656
[2019-09-07 15:58:46,103 INFO  L226             Difference]: Without dead ends: 66336
[2019-09-07 15:58:46,192 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 15:58:46,267 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66336 states.
[2019-09-07 15:58:47,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66336 to 65119.
[2019-09-07 15:58:47,319 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 65119 states.
[2019-09-07 15:58:47,463 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65119 states to 65119 states and 105936 transitions.
[2019-09-07 15:58:47,467 INFO  L78                 Accepts]: Start accepts. Automaton has 65119 states and 105936 transitions. Word has length 10248
[2019-09-07 15:58:47,471 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:58:47,471 INFO  L475      AbstractCegarLoop]: Abstraction has 65119 states and 105936 transitions.
[2019-09-07 15:58:47,471 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:58:47,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 65119 states and 105936 transitions.
[2019-09-07 15:58:48,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10254
[2019-09-07 15:58:48,361 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:58:48,366 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:58:48,367 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:58:48,367 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:58:48,369 INFO  L82        PathProgramCache]: Analyzing trace with hash -884518580, now seen corresponding path program 1 times
[2019-09-07 15:58:48,369 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:58:48,369 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:58:48,371 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:48,371 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:58:48,371 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:58:48,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:30,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:59:30,932 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 15:59:30,932 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 15:59:30,949 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:59:34,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:34,266 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12351 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 15:59:34,515 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:00:48,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 16:00:48,864 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:00:48,867 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 16:00:48,917 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 16:00:48,918 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 16:00:48,919 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 16:00:48,919 INFO  L87              Difference]: Start difference. First operand 65119 states and 105936 transitions. Second operand 7 states.