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/Problem09_label51.c


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This is Ultimate 0.1.24-112bae1
[2019-09-09 13:56:57,076 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-09 13:56:57,078 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-09-09 13:56:57,101 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-09 13:56:57,102 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-09 13:56:57,103 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-09 13:56:57,105 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-09 13:56:57,105 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-09 13:56:57,106 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-09 13:56:57,108 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-09 13:56:57,110 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-09 13:56:57,112 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
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[2019-09-09 13:56:57,114 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-09 13:56:57,115 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-09 13:56:57,117 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-09-09 13:56:57,117 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-09 13:56:57,118 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-09 13:56:57,119 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-09 13:56:57,120 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-09 13:56:57,120 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-09-09 13:56:57,121 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2019-09-09 13:56:57,124 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-09 13:56:57,124 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-09 13:56:57,125 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-09 13:56:57,125 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-09 13:56:57,125 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-09 13:56:57,126 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-09 13:56:57,127 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-09 13:56:57,127 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 13:56:57,142 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-09 13:56:57,143 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-09 13:56:57,143 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2019-09-09 13:56:57,143 INFO  L138        SettingsManager]:  * Log level for plugins=info
[2019-09-09 13:56:57,144 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2019-09-09 13:56:57,144 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2019-09-09 13:56:57,144 INFO  L138        SettingsManager]:  * Ignore calls to and inside polymorphic procedures=false
[2019-09-09 13:56:57,144 INFO  L138        SettingsManager]:  * Ignore calls to recursive procedures=false
[2019-09-09 13:56:57,145 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2019-09-09 13:56:57,145 INFO  L138        SettingsManager]:  * Abstract domain=IntervalDomain
[2019-09-09 13:56:57,146 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-09 13:56:57,146 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-09 13:56:57,146 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-09 13:56:57,146 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-09 13:56:57,147 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-09 13:56:57,147 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-09 13:56:57,147 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-09 13:56:57,147 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-09 13:56:57,147 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-09 13:56:57,148 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-09 13:56:57,148 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-09 13:56:57,148 INFO  L138        SettingsManager]:  * Remove goto edges from RCFG=true
[2019-09-09 13:56:57,148 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-09 13:56:57,148 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-09 13:56:57,149 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-09 13:56:57,149 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-09 13:56:57,149 INFO  L138        SettingsManager]:  * Trace refinement strategy=TAIPAN
[2019-09-09 13:56:57,149 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-09 13:56:57,149 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-09 13:56:57,150 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2019-09-09 13:56:57,178 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-09 13:56:57,191 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-09 13:56:57,195 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-09 13:56:57,196 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-09 13:56:57,197 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-09 13:56:57,197 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem09_label51.c
[2019-09-09 13:56:57,261 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c024bfa1/f12ede1063ac48139e3c454fdf8a8cf7/FLAGc4e39d242
[2019-09-09 13:57:01,078 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-09 13:57:01,079 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem09_label51.c
[2019-09-09 13:57:01,402 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c024bfa1/f12ede1063ac48139e3c454fdf8a8cf7/FLAGc4e39d242
[2019-09-09 13:57:01,502 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c024bfa1/f12ede1063ac48139e3c454fdf8a8cf7
[2019-09-09 13:57:01,512 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-09 13:57:01,514 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-09 13:57:01,514 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-09 13:57:01,515 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-09 13:57:01,518 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-09 13:57:01,519 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:57:01" (1/1) ...
[2019-09-09 13:57:01,522 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c498326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:57:01, skipping insertion in model container
[2019-09-09 13:57:01,522 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:57:01" (1/1) ...
[2019-09-09 13:57:01,529 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-09 13:57:03,593 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-09 13:57:31,889 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-09 13:57:31,899 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-09 13:57:52,753 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-09 13:58:03,843 INFO  L192         MainTranslator]: Completed translation
[2019-09-09 13:58:03,843 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03 WrapperNode
[2019-09-09 13:58:03,843 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-09 13:58:03,844 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-09 13:58:03,844 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-09 13:58:03,845 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-09 13:58:03,855 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:03,855 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:05,842 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:05,843 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:09,241 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:09,652 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:10,826 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (1/1) ...
[2019-09-09 13:58:11,645 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-09 13:58:11,645 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-09 13:58:11,646 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-09 13:58:11,646 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-09 13:58:11,647 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (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 13:58:11,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-09 13:58:11,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-09 13:58:11,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-09 13:58:11,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-09 13:58:11,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-09 13:58:11,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-09 13:58:11,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-09 13:58:11,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-09 13:58:11,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-09 13:58:11,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-09 13:58:11,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-09 13:58:11,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-09 13:58:11,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-09 13:58:11,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-09 13:58:11,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-09 13:58:11,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-09 13:58:11,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-09 13:58:11,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-09 13:58:11,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-09 13:58:11,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-09 13:58:11,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-09 13:58:11,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-09 13:58:11,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-09 13:58:11,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-09 13:58:11,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-09 13:58:11,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output47
[2019-09-09 13:58:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output48
[2019-09-09 13:58:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output49
[2019-09-09 13:58:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output50
[2019-09-09 13:58:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output51
[2019-09-09 13:58:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output52
[2019-09-09 13:58:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output53
[2019-09-09 13:58:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output54
[2019-09-09 13:58:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output55
[2019-09-09 13:58:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output56
[2019-09-09 13:58:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output57
[2019-09-09 13:58:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output58
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output59
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output60
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output61
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output62
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output63
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output64
[2019-09-09 13:58:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output65
[2019-09-09 13:58:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output66
[2019-09-09 13:58:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output67
[2019-09-09 13:58:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output68
[2019-09-09 13:58:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output69
[2019-09-09 13:58:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output70
[2019-09-09 13:58:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output71
[2019-09-09 13:58:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output72
[2019-09-09 13:58:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output73
[2019-09-09 13:58:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output74
[2019-09-09 13:58:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output75
[2019-09-09 13:58:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-09 13:58:11,739 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-09 13:58:11,739 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-09 13:58:11,740 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-09 13:58:11,740 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-09 13:58:11,740 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-09 13:58:11,740 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-09 13:58:11,740 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-09 13:58:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-09 13:58:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-09 13:58:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-09 13:58:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-09 13:58:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-09 13:58:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-09 13:58:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-09 13:58:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-09 13:58:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-09 13:58:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-09 13:58:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-09 13:58:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-09 13:58:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-09 13:58:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-09 13:58:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-09 13:58:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-09 13:58:11,750 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-09 13:58:11,750 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output47
[2019-09-09 13:58:11,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output48
[2019-09-09 13:58:11,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output49
[2019-09-09 13:58:11,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output50
[2019-09-09 13:58:11,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output51
[2019-09-09 13:58:11,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output52
[2019-09-09 13:58:11,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output53
[2019-09-09 13:58:11,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output54
[2019-09-09 13:58:11,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output55
[2019-09-09 13:58:11,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output56
[2019-09-09 13:58:11,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output57
[2019-09-09 13:58:11,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output58
[2019-09-09 13:58:11,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output59
[2019-09-09 13:58:11,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output60
[2019-09-09 13:58:11,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output61
[2019-09-09 13:58:11,761 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output62
[2019-09-09 13:58:11,762 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output63
[2019-09-09 13:58:11,762 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output64
[2019-09-09 13:58:11,762 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output65
[2019-09-09 13:58:11,768 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output66
[2019-09-09 13:58:11,768 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output67
[2019-09-09 13:58:11,769 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output68
[2019-09-09 13:58:11,769 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output69
[2019-09-09 13:58:11,769 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output70
[2019-09-09 13:58:11,769 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output71
[2019-09-09 13:58:11,770 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output72
[2019-09-09 13:58:11,770 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output73
[2019-09-09 13:58:11,770 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output74
[2019-09-09 13:58:11,770 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output75
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-09 13:58:11,771 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-09 13:59:59,010 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-09 13:59:59,011 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-09 13:59:59,025 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:59:59 BoogieIcfgContainer
[2019-09-09 13:59:59,026 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-09 13:59:59,027 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-09 13:59:59,027 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-09 13:59:59,030 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-09 13:59:59,030 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 01:57:01" (1/3) ...
[2019-09-09 13:59:59,031 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de98261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:59:59, skipping insertion in model container
[2019-09-09 13:59:59,031 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:58:03" (2/3) ...
[2019-09-09 13:59:59,032 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de98261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:59:59, skipping insertion in model container
[2019-09-09 13:59:59,032 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:59:59" (3/3) ...
[2019-09-09 13:59:59,034 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem09_label51.c
[2019-09-09 13:59:59,045 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-09 13:59:59,061 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-09 13:59:59,079 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-09 13:59:59,107 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-09 13:59:59,107 INFO  L378      AbstractCegarLoop]: Hoare is false
[2019-09-09 13:59:59,107 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-09 13:59:59,107 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-09 13:59:59,107 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-09 13:59:59,107 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-09 13:59:59,108 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-09 13:59:59,108 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-09 14:00:00,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 20661 states.
[2019-09-09 14:00:04,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16639
[2019-09-09 14:00:04,266 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-09 14:00:04,282 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-09 14:00:04,287 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-09 14:00:04,301 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-09 14:00:04,310 INFO  L82        PathProgramCache]: Analyzing trace with hash 384225888, now seen corresponding path program 1 times
[2019-09-09 14:00:04,313 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2019-09-09 14:00:04,362 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 14:00:04,363 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-09 14:00:04,363 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 14:00:04,363 INFO  L289   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2019-09-09 14:00:11,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-09 14:04:28,137 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 14:04:28,139 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-09 14:04:28,141 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-09 14:04:28,141 INFO  L257   anRefinementStrategy]: Using the first perfect interpolant sequence
[2019-09-09 14:04:28,175 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-09 14:04:28,191 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-09 14:04:28,192 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-09 14:04:28,195 INFO  L87              Difference]: Start difference. First operand 20661 states. Second operand 3 states.
[2019-09-09 14:06:15,864 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-09 14:06:15,865 INFO  L93              Difference]: Finished difference Result 38973 states and 69668 transitions.
[2019-09-09 14:06:15,865 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-09 14:06:15,867 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 16638
[2019-09-09 14:06:15,910 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-09 14:06:16,197 INFO  L225             Difference]: With dead ends: 38973
[2019-09-09 14:06:16,197 INFO  L226             Difference]: Without dead ends: 38905
[2019-09-09 14:06:16,200 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 76 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-09 14:06:16,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38905 states.
[2019-09-09 14:06:17,406 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38905 to 38649.
[2019-09-09 14:06:17,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 38649 states.
[2019-09-09 14:06:17,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 38649 states to 38649 states and 69057 transitions.
[2019-09-09 14:06:17,541 INFO  L78                 Accepts]: Start accepts. Automaton has 38649 states and 69057 transitions. Word has length 16638
[2019-09-09 14:06:17,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-09 14:06:17,583 INFO  L475      AbstractCegarLoop]: Abstraction has 38649 states and 69057 transitions.
[2019-09-09 14:06:17,583 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-09 14:06:17,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 38649 states and 69057 transitions.
[2019-09-09 14:06:20,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16647
[2019-09-09 14:06:20,209 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-09 14:06:20,220 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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[2019-09-09 14:06:20,221 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-09 14:06:20,223 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-09 14:06:20,232 INFO  L82        PathProgramCache]: Analyzing trace with hash -532477444, now seen corresponding path program 1 times
[2019-09-09 14:06:20,232 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2019-09-09 14:06:20,238 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 14:06:20,239 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-09 14:06:20,239 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-09 14:06:20,239 INFO  L289   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2019-09-09 14:06:21,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-09 14:08:24,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-09 14:08:24,328 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-09 14:08:24,329 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-09 14:08:24,329 INFO  L257   anRefinementStrategy]: Using the first perfect interpolant sequence
[2019-09-09 14:08:24,354 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-09 14:08:24,354 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-09 14:08:24,355 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-09 14:08:24,355 INFO  L87              Difference]: Start difference. First operand 38649 states and 69057 transitions. Second operand 5 states.