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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem08_label53.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-09 13:04:29,362 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-09 13:04:29,365 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-09-09 13:04:29,412 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-09 13:04:29,414 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-09 13:04:29,416 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-09 13:04:29,418 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-09 13:04:29,419 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-09 13:04:29,421 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-09 13:04:29,425 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-09 13:04:29,429 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
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[2019-09-09 13:04:29,436 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-09-09 13:04:29,437 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2019-09-09 13:04:29,441 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-09 13:04:29,441 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-09 13:04:29,446 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-09 13:04:29,446 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-09 13:04:29,447 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-09 13:04:29,447 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-09 13:04:29,447 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-09 13:04:29,448 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-09 13:04:29,450 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf
[2019-09-09 13:04:29,485 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-09 13:04:29,488 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-09 13:04:29,489 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2019-09-09 13:04:29,489 INFO  L138        SettingsManager]:  * Log level for plugins=info
[2019-09-09 13:04:29,490 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2019-09-09 13:04:29,490 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2019-09-09 13:04:29,490 INFO  L138        SettingsManager]:  * Ignore calls to and inside polymorphic procedures=false
[2019-09-09 13:04:29,490 INFO  L138        SettingsManager]:  * Ignore calls to recursive procedures=false
[2019-09-09 13:04:29,490 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2019-09-09 13:04:29,491 INFO  L138        SettingsManager]:  * Abstract domain=IntervalDomain
[2019-09-09 13:04:29,491 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-09 13:04:29,491 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-09 13:04:29,492 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-09 13:04:29,492 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-09 13:04:29,492 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-09 13:04:29,492 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-09 13:04:29,492 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-09 13:04:29,493 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-09 13:04:29,493 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-09 13:04:29,493 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-09 13:04:29,494 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-09 13:04:29,495 INFO  L138        SettingsManager]:  * Remove goto edges from RCFG=true
[2019-09-09 13:04:29,495 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-09 13:04:29,495 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-09 13:04:29,495 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-09 13:04:29,495 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-09 13:04:29,496 INFO  L138        SettingsManager]:  * Trace refinement strategy=TAIPAN
[2019-09-09 13:04:29,496 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-09 13:04:29,496 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-09 13:04:29,497 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2019-09-09 13:04:29,540 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-09 13:04:29,552 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-09 13:04:29,555 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-09 13:04:29,557 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-09 13:04:29,557 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-09 13:04:29,558 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem08_label53.c
[2019-09-09 13:04:29,619 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2ca9efc/3dd5fe0ab1f24a4eacfdfe0ebbb1b766/FLAG71b02e18d
[2019-09-09 13:04:33,583 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-09 13:04:33,584 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem08_label53.c
[2019-09-09 13:04:33,876 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2ca9efc/3dd5fe0ab1f24a4eacfdfe0ebbb1b766/FLAG71b02e18d
[2019-09-09 13:04:34,168 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2ca9efc/3dd5fe0ab1f24a4eacfdfe0ebbb1b766
[2019-09-09 13:04:34,177 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-09 13:04:34,179 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-09 13:04:34,180 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-09 13:04:34,180 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-09 13:04:34,183 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-09 13:04:34,184 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:04:34" (1/1) ...
[2019-09-09 13:04:34,187 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270b417c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:04:34, skipping insertion in model container
[2019-09-09 13:04:34,187 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:04:34" (1/1) ...
[2019-09-09 13:04:34,196 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-09 13:04:36,069 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-09 13:05:03,746 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-09 13:05:03,751 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-09 13:05:24,350 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-09 13:05:36,364 INFO  L192         MainTranslator]: Completed translation
[2019-09-09 13:05:36,364 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36 WrapperNode
[2019-09-09 13:05:36,364 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-09 13:05:36,365 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-09 13:05:36,365 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-09 13:05:36,365 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-09 13:05:36,376 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:36,376 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:37,047 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:37,048 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:39,652 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:41,334 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:42,267 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (1/1) ...
[2019-09-09 13:05:42,916 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-09 13:05:42,917 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-09 13:05:42,917 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-09 13:05:42,917 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-09 13:05:42,918 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (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
[2019-09-09 13:05:42,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-09 13:05:42,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-09 13:05:42,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-09 13:05:42,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-09 13:05:42,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-09 13:05:42,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-09 13:05:42,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-09 13:05:42,971 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-09 13:05:42,973 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-09 13:05:42,973 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-09 13:05:42,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-09 13:05:42,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-09 13:05:42,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-09 13:05:42,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-09 13:05:42,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-09 13:05:42,975 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-09 13:05:42,975 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-09 13:05:42,976 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-09 13:05:42,976 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-09 13:05:42,977 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-09 13:05:42,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-09 13:05:42,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-09 13:05:42,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-09 13:05:42,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-09 13:05:42,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-09 13:05:42,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-09 13:05:42,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-09 13:05:42,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-09 13:05:42,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-09 13:05:42,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-09 13:05:42,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output47
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output48
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output49
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output50
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output51
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output52
[2019-09-09 13:05:42,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output53
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output54
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output55
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output56
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output57
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output58
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output59
[2019-09-09 13:05:42,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output60
[2019-09-09 13:05:42,984 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output61
[2019-09-09 13:05:42,984 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output62
[2019-09-09 13:05:42,984 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output63
[2019-09-09 13:05:42,984 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output64
[2019-09-09 13:05:42,984 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output65
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output66
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output67
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output68
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output69
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output70
[2019-09-09 13:05:42,985 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output71
[2019-09-09 13:05:42,986 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output72
[2019-09-09 13:05:42,986 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output73
[2019-09-09 13:05:42,986 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output74
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output75
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output76
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output77
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output78
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output79
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output80
[2019-09-09 13:05:42,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output81
[2019-09-09 13:05:42,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output82
[2019-09-09 13:05:42,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-09 13:05:42,989 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-09 13:05:42,989 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-09 13:05:42,990 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-09 13:05:42,990 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-09 13:05:42,990 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-09 13:05:42,991 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-09 13:05:42,992 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-09 13:05:42,993 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-09 13:05:42,993 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-09 13:05:42,993 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-09 13:05:42,993 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-09 13:05:42,993 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-09 13:05:42,994 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-09 13:05:42,995 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-09 13:05:42,995 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-09 13:05:42,995 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-09 13:05:42,996 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-09 13:05:42,996 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-09 13:05:42,996 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-09 13:05:42,996 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-09 13:05:42,997 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-09 13:05:42,997 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-09 13:05:42,998 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-09 13:05:42,999 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-09 13:05:42,999 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output47
[2019-09-09 13:05:42,999 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output48
[2019-09-09 13:05:42,999 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output49
[2019-09-09 13:05:42,999 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output50
[2019-09-09 13:05:43,000 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output51
[2019-09-09 13:05:43,000 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output52
[2019-09-09 13:05:43,000 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output53
[2019-09-09 13:05:43,001 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output54
[2019-09-09 13:05:43,004 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output55
[2019-09-09 13:05:43,005 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output56
[2019-09-09 13:05:43,005 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output57
[2019-09-09 13:05:43,005 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output58
[2019-09-09 13:05:43,013 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output59
[2019-09-09 13:05:43,013 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output60
[2019-09-09 13:05:43,013 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output61
[2019-09-09 13:05:43,013 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output62
[2019-09-09 13:05:43,013 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output63
[2019-09-09 13:05:43,014 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output64
[2019-09-09 13:05:43,014 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output65
[2019-09-09 13:05:43,014 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output66
[2019-09-09 13:05:43,014 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output67
[2019-09-09 13:05:43,015 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output68
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output69
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output70
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output71
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output72
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output73
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output74
[2019-09-09 13:05:43,016 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output75
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output76
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output77
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output78
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output79
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output80
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output81
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output82
[2019-09-09 13:05:43,017 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-09 13:05:43,018 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-09 13:05:43,018 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-09 13:05:43,018 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-09 13:05:43,018 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-09 13:05:43,018 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-09 13:07:14,889 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-09 13:07:14,890 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-09 13:07:14,912 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:07:14 BoogieIcfgContainer
[2019-09-09 13:07:14,913 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-09 13:07:14,914 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-09 13:07:14,914 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-09 13:07:14,918 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-09 13:07:14,919 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 01:04:34" (1/3) ...
[2019-09-09 13:07:14,919 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afa2b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:07:14, skipping insertion in model container
[2019-09-09 13:07:14,920 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:05:36" (2/3) ...
[2019-09-09 13:07:14,920 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afa2b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:07:14, skipping insertion in model container
[2019-09-09 13:07:14,920 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:07:14" (3/3) ...
[2019-09-09 13:07:14,923 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem08_label53.c
[2019-09-09 13:07:14,935 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-09 13:07:14,955 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-09 13:07:14,979 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-09 13:07:15,012 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-09 13:07:15,012 INFO  L378      AbstractCegarLoop]: Hoare is false
[2019-09-09 13:07:15,012 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-09 13:07:15,012 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-09 13:07:15,013 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-09 13:07:15,013 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-09 13:07:15,013 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-09 13:07:15,013 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-09 13:07:15,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 23548 states.
[2019-09-09 13:07:20,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18065
[2019-09-09 13:07:20,780 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-09 13:07:20,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2019-09-09 13:07:20,804 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output82Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-09 13:07:20,818 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-09 13:07:20,830 INFO  L82        PathProgramCache]: Analyzing trace with hash 268760277, now seen corresponding path program 1 times
[2019-09-09 13:07:20,833 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2019-09-09 13:07:20,890 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 13:07:20,891 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-09 13:07:20,891 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 13:07:20,891 INFO  L289   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2019-09-09 13:07:26,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-09 13:12:32,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-09 13:12:32,195 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-09 13:12:32,197 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-09 13:12:32,198 INFO  L257   anRefinementStrategy]: Using the first perfect interpolant sequence
[2019-09-09 13:12:32,225 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-09 13:12:32,240 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-09 13:12:32,240 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-09 13:12:32,243 INFO  L87              Difference]: Start difference. First operand 23548 states. Second operand 4 states.
[2019-09-09 13:15:26,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-09 13:15:26,411 INFO  L93              Difference]: Finished difference Result 63759 states and 119452 transitions.
[2019-09-09 13:15:26,412 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-09 13:15:26,414 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 18064
[2019-09-09 13:15:26,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-09 13:15:26,852 INFO  L225             Difference]: With dead ends: 63759
[2019-09-09 13:15:26,853 INFO  L226             Difference]: Without dead ends: 63687
[2019-09-09 13:15:26,856 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-09 13:15:27,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63687 states.
[2019-09-09 13:15:28,393 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63687 to 42999.
[2019-09-09 13:15:28,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42999 states.
[2019-09-09 13:15:28,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42999 states to 42999 states and 79991 transitions.
[2019-09-09 13:15:28,628 INFO  L78                 Accepts]: Start accepts. Automaton has 42999 states and 79991 transitions. Word has length 18064
[2019-09-09 13:15:28,687 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-09 13:15:28,688 INFO  L475      AbstractCegarLoop]: Abstraction has 42999 states and 79991 transitions.
[2019-09-09 13:15:28,688 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-09 13:15:28,688 INFO  L276                IsEmpty]: Start isEmpty. Operand 42999 states and 79991 transitions.
[2019-09-09 13:15:31,925 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18074
[2019-09-09 13:15:31,926 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-09 13:15:31,939 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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[2019-09-09 13:15:31,940 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output82Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-09 13:15:31,944 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-09 13:15:31,954 INFO  L82        PathProgramCache]: Analyzing trace with hash -2147134379, now seen corresponding path program 1 times
[2019-09-09 13:15:31,954 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2019-09-09 13:15:31,962 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 13:15:31,962 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-09 13:15:31,962 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 13:15:31,962 INFO  L289   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2019-09-09 13:15:32,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat