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_label15.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 15:44:32,285 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:44:32,288 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:44:32,303 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:44:32,304 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:44:32,305 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:44:32,306 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 15:44:32,308 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 15:44:32,310 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 15:44:32,311 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:44:32,312 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 15:44:32,313 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 15:44:32,313 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:44:32,314 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:44:32,315 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:44:32,316 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:44:32,317 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:44:32,318 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:44:32,320 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:44:32,322 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:44:32,324 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:44:32,325 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:44:32,326 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:44:32,327 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:44:32,331 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:44:32,331 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:44:32,332 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:44:32,332 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:44:32,333 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:44:32,334 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:44:32,334 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 15:44:32,336 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:44:32,337 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:44:32,338 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:44:32,338 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:44:32,339 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 15:44:32,339 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 15:44:32,339 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 15:44:32,340 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 15:44:32,341 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:44:32,341 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 15:44:32,356 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:44:32,357 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:44:32,358 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:44:32,358 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:44:32,358 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:44:32,359 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:44:32,359 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:44:32,359 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:44:32,359 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:44:32,360 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:44:32,361 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:44:32,361 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:44:32,361 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:44:32,361 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:44:32,361 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:44:32,362 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:44:32,362 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:44:32,362 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:44:32,362 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:44:32,362 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:44:32,363 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:44:32,363 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:44:32,363 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:44:32,363 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:44:32,392 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:44:32,405 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:44:32,408 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:44:32,410 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:44:32,410 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:44:32,411 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label15.c
[2019-09-07 15:44:32,470 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf989b91/194d13a5120a46d7be67d8f19a64ddaa/FLAGca487e316
[2019-09-07 15:44:34,739 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:44:34,740 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label15.c
[2019-09-07 15:44:34,899 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf989b91/194d13a5120a46d7be67d8f19a64ddaa/FLAGca487e316
[2019-09-07 15:44:35,275 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf989b91/194d13a5120a46d7be67d8f19a64ddaa
[2019-09-07 15:44:35,287 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:44:35,289 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:44:35,293 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:44:35,294 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:44:35,297 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:44:35,298 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:44:35" (1/1) ...
[2019-09-07 15:44:35,301 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3817fa46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:35, skipping insertion in model container
[2019-09-07 15:44:35,302 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:44:35" (1/1) ...
[2019-09-07 15:44:35,309 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:44:36,416 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:44:47,740 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:44:47,746 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:44:58,473 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:44:59,214 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:44:59,214 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59 WrapperNode
[2019-09-07 15:44:59,215 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:44:59,216 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:44:59,216 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:44:59,216 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:44:59,227 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:44:59,227 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:44:59,642 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:44:59,642 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:45:01,398 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:45:01,617 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:45:02,299 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
[2019-09-07 15:45:02,801 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:45:02,802 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:45:02,802 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:45:02,802 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:45:02,803 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:45:02,865 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:45:02,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:45:02,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:45:02,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:45:02,866 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:45:02,867 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:45:02,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:45:02,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:45:02,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:45:02,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:45:02,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:45:02,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:45:02,870 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:45:02,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:45:02,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:45:02,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:45:02,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:45:02,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:45:02,874 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:45:02,874 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:45:02,874 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:45:02,874 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:45:02,875 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:45:02,876 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:45:02,877 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:45:02,878 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:45:02,879 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:45:02,880 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:45:02,881 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:45:02,882 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:45:02,882 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:45:02,882 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:45:50,510 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:45:50,511 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:45:50,517 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:45:50 BoogieIcfgContainer
[2019-09-07 15:45:50,518 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:45:50,519 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:45:50,519 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:45:50,523 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:45:50,523 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:44:35" (1/3) ...
[2019-09-07 15:45:50,524 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77514e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:45:50, skipping insertion in model container
[2019-09-07 15:45:50,524 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:44:59" (2/3) ...
[2019-09-07 15:45:50,525 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77514e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:45:50, skipping insertion in model container
[2019-09-07 15:45:50,525 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:45:50" (3/3) ...
[2019-09-07 15:45:50,527 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label15.c
[2019-09-07 15:45:50,538 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:45:50,551 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:45:50,568 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:45:50,635 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:45:50,635 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:45:50,636 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:45:50,636 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:45:50,636 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:45:50,636 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:45:50,636 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:45:50,636 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:45:50,637 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:45:50,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:45:51,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10207
[2019-09-07 15:45:51,927 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:45:51,935 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 15:45:51,938 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:45:51,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:45:51,957 INFO  L82        PathProgramCache]: Analyzing trace with hash 489268610, now seen corresponding path program 1 times
[2019-09-07 15:45:51,959 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:45:51,959 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:45:52,010 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:45:52,010 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:45:52,010 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:45:54,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:47:30,320 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 15:47:30,323 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:47:30,324 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:47:30,354 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:47:30,369 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:47:30,371 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:47:30,374 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 15:48:22,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:48:22,297 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 15:48:22,298 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:48:22,299 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10206
[2019-09-07 15:48:22,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:48:22,549 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 15:48:22,549 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 15:48:22,597 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 48 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:48:22,666 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 15:48:23,428 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 15:48:23,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:48:23,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 36022 transitions.
[2019-09-07 15:48:23,502 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 36022 transitions. Word has length 10206
[2019-09-07 15:48:23,529 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:48:23,529 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 36022 transitions.
[2019-09-07 15:48:23,530 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:48:23,530 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 36022 transitions.
[2019-09-07 15:48:24,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10215
[2019-09-07 15:48:24,815 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:48:24,822 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:48:24,823 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:48:24,823 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:48:24,828 INFO  L82        PathProgramCache]: Analyzing trace with hash 2064274742, now seen corresponding path program 1 times
[2019-09-07 15:48:24,828 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:48:24,828 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:48:24,832 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:48:24,833 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:48:24,833 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:48:30,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:50:01,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:50:01,072 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:50:01,073 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:50:01,089 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:50:01,090 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:50:01,091 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:50:01,091 INFO  L87              Difference]: Start difference. First operand 20756 states and 36022 transitions. Second operand 3 states.
[2019-09-07 15:50:58,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:50:58,780 INFO  L93              Difference]: Finished difference Result 62254 states and 108605 transitions.
[2019-09-07 15:50:58,781 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:50:58,781 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10214
[2019-09-07 15:50:58,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:50:58,947 INFO  L225             Difference]: With dead ends: 62254
[2019-09-07 15:50:58,947 INFO  L226             Difference]: Without dead ends: 41504
[2019-09-07 15:50:58,996 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 46 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:50:59,052 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41504 states.
[2019-09-07 15:50:59,926 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 41504.
[2019-09-07 15:50:59,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41504 states.
[2019-09-07 15:51:00,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41504 states to 41504 states and 71408 transitions.
[2019-09-07 15:51:00,013 INFO  L78                 Accepts]: Start accepts. Automaton has 41504 states and 71408 transitions. Word has length 10214
[2019-09-07 15:51:00,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:51:00,025 INFO  L475      AbstractCegarLoop]: Abstraction has 41504 states and 71408 transitions.
[2019-09-07 15:51:00,025 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:51:00,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 41504 states and 71408 transitions.
[2019-09-07 15:51:01,295 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10222
[2019-09-07 15:51:01,296 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:51:01,304 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 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[2019-09-07 15:51:01,305 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:51:01,306 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:51:01,311 INFO  L82        PathProgramCache]: Analyzing trace with hash 1356143388, now seen corresponding path program 1 times
[2019-09-07 15:51:01,312 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:51:01,312 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:51:01,316 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:01,316 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:51:01,319 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:51:02,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:51:34,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:51:34,213 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:51:34,214 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:51:34,221 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:51:34,222 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:51:34,222 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:51:34,222 INFO  L87              Difference]: Start difference. First operand 41504 states and 71408 transitions. Second operand 6 states.
[2019-09-07 15:53:05,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:53:05,192 INFO  L93              Difference]: Finished difference Result 126694 states and 221045 transitions.
[2019-09-07 15:53:05,192 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:53:05,193 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10221
[2019-09-07 15:53:05,193 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:53:05,570 INFO  L225             Difference]: With dead ends: 126694
[2019-09-07 15:53:05,570 INFO  L226             Difference]: Without dead ends: 85196
[2019-09-07 15:53:05,673 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 15:53:05,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85196 states.
[2019-09-07 15:53:07,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85196 to 84636.
[2019-09-07 15:53:07,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 84636 states.
[2019-09-07 15:53:07,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84636 states to 84636 states and 142397 transitions.
[2019-09-07 15:53:07,488 INFO  L78                 Accepts]: Start accepts. Automaton has 84636 states and 142397 transitions. Word has length 10221
[2019-09-07 15:53:07,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:53:07,490 INFO  L475      AbstractCegarLoop]: Abstraction has 84636 states and 142397 transitions.
[2019-09-07 15:53:07,490 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:53:07,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 84636 states and 142397 transitions.
[2019-09-07 15:53:08,226 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10230
[2019-09-07 15:53:08,227 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:53:08,232 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 15:53:08,232 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:53:08,232 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:53:08,235 INFO  L82        PathProgramCache]: Analyzing trace with hash -936342296, now seen corresponding path program 1 times
[2019-09-07 15:53:08,235 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:53:08,235 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:53:08,237 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:53:08,238 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:53:08,238 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:53:08,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:53:49,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:53:49,175 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 15:53:49,175 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 15:53:49,191 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:53:52,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:53:52,364 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12329 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 15:53:52,617 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 15:54:52,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 15:54:52,166 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 15:54:52,168 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 15:54:52,199 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 15:54:52,199 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 15:54:52,200 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 15:54:52,200 INFO  L87              Difference]: Start difference. First operand 84636 states and 142397 transitions. Second operand 7 states.