java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label28.c


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This is Ultimate 0.1.24-112bae1
[2019-09-07 15:56:33,823 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:56:33,826 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:56:33,846 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:56:33,847 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:56:33,849 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:56:33,851 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 15:56:33,866 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 15:56:33,867 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2019-09-07 15:56:33,873 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2019-09-07 15:56:33,875 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:56:33,879 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:56:33,881 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:56:33,882 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:56:33,884 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:56:33,887 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:56:33,890 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:56:33,894 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:56:33,898 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:56:33,900 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:56:33,903 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:56:33,904 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:56:33,906 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 15:56:33,907 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 15:56:33,907 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:56:33,909 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:56:33,911 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:56:33,913 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:56:33,913 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 15:56:33,917 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:56:33,921 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:56:33,921 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 15:56:33,922 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 15:56:33,922 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 15:56:33,922 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 15:56:33,924 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:56:33,925 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 15:56:33,952 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:56:33,952 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:56:33,954 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:56:33,955 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:56:33,955 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:56:33,955 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:56:33,956 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:56:33,956 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:56:33,956 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:56:33,956 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:56:33,957 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:56:33,958 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:56:33,958 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:56:33,958 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:56:33,958 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:56:33,959 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:56:33,959 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:56:33,959 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:56:33,959 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:56:33,959 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:56:33,960 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:56:33,960 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:56:33,960 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:56:33,960 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:56:33,960 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:56:33,961 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:56:33,961 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:56:33,961 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:56:33,961 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:56:34,022 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:56:34,043 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:56:34,046 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:56:34,048 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:56:34,048 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:56:34,049 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label28.c
[2019-09-07 15:56:34,109 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5f7e0f1/74046ac0e3054de9b2920987182d6dda/FLAGcc6f1ef23
[2019-09-07 15:56:36,500 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:56:36,502 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label28.c
[2019-09-07 15:56:36,671 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5f7e0f1/74046ac0e3054de9b2920987182d6dda/FLAGcc6f1ef23
[2019-09-07 15:56:36,953 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a5f7e0f1/74046ac0e3054de9b2920987182d6dda
[2019-09-07 15:56:36,964 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:56:36,966 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:56:36,967 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:56:36,967 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:56:36,971 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:56:36,972 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:56:36" (1/1) ...
[2019-09-07 15:56:36,975 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a78e7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:56:36, skipping insertion in model container
[2019-09-07 15:56:36,975 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:56:36" (1/1) ...
[2019-09-07 15:56:36,982 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:56:38,275 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:56:51,499 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:56:51,504 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:57:01,156 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:57:01,933 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:57:01,934 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01 WrapperNode
[2019-09-07 15:57:01,934 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:57:01,935 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:57:01,935 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:57:01,935 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:57:01,947 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:01,947 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:02,399 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:02,400 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:04,306 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:04,534 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:05,230 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
[2019-09-07 15:57:05,794 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:57:05,795 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:57:05,795 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:57:05,795 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:57:05,796 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:57:05,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:57:05,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:57:05,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:57:05,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:57:05,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:57:05,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:57:05,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:57:05,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:57:05,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:57:05,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:57:05,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:57:05,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:57:05,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:57:05,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:57:05,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:57:05,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:57:05,882 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:57:05,882 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:57:05,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:57:05,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:57:05,885 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:57:05,886 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:57:05,887 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:57:05,887 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:57:05,887 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:57:05,888 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:57:05,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:57:05,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:57:05,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:57:05,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:57:05,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:57:05,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:57:05,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:57:05,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:57:05,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:57:05,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:57:05,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:57:05,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:57:05,892 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:57:05,892 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:57:05,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:57:05,894 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:57:05,895 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:57:05,895 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:57:05,896 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:57:05,897 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:57:05,898 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:57:05,898 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:57:05,898 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:57:05,898 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:57:53,088 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:57:53,089 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:57:53,095 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:57:53 BoogieIcfgContainer
[2019-09-07 15:57:53,095 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:57:53,096 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:57:53,096 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:57:53,099 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:57:53,099 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:56:36" (1/3) ...
[2019-09-07 15:57:53,100 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89dab53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:57:53, skipping insertion in model container
[2019-09-07 15:57:53,100 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:57:01" (2/3) ...
[2019-09-07 15:57:53,101 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89dab53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:57:53, skipping insertion in model container
[2019-09-07 15:57:53,101 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:57:53" (3/3) ...
[2019-09-07 15:57:53,103 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label28.c
[2019-09-07 15:57:53,112 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:57:53,124 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:57:53,142 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:57:53,212 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:57:53,213 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:57:53,213 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:57:53,213 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:57:53,213 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:57:53,213 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:57:53,214 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:57:53,214 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:57:53,214 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:57:53,345 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:57:54,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10224
[2019-09-07 15:57:54,379 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:57:54,387 INFO  L399         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:57:54,391 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:57:54,401 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:57:54,409 INFO  L82        PathProgramCache]: Analyzing trace with hash 1521661149, now seen corresponding path program 1 times
[2019-09-07 15:57:54,411 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:57:54,412 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:57:54,462 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:57:54,462 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:57:54,463 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:57:57,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:59:38,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:59:38,198 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:59:38,200 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:59:38,228 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:59:38,243 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:59:38,244 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:59:38,247 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:00:39,634 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:00:39,635 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:00:39,642 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:00:39,644 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10223
[2019-09-07 16:00:39,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:00:39,901 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:00:39,902 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:00:39,963 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:00:40,049 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:00:40,967 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:00:40,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:00:41,067 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40306 transitions.
[2019-09-07 16:00:41,071 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40306 transitions. Word has length 10223
[2019-09-07 16:00:41,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:00:41,105 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40306 transitions.
[2019-09-07 16:00:41,106 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:00:41,106 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40306 transitions.
[2019-09-07 16:00:42,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10242
[2019-09-07 16:00:42,119 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:00:42,126 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:00:42,127 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:00:42,127 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:00:42,132 INFO  L82        PathProgramCache]: Analyzing trace with hash -1101574531, now seen corresponding path program 1 times
[2019-09-07 16:00:42,132 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:00:42,133 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:00:42,136 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:00:42,137 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:00:42,137 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:00:42,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:01:18,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:01:18,272 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:01:18,273 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:01:18,289 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:01:18,290 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:01:18,290 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:01:18,291 INFO  L87              Difference]: Start difference. First operand 20756 states and 40306 transitions. Second operand 6 states.
[2019-09-07 16:02:30,571 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:02:30,572 INFO  L93              Difference]: Finished difference Result 63358 states and 123037 transitions.
[2019-09-07 16:02:30,573 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:02:30,573 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10241
[2019-09-07 16:02:30,573 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:02:30,788 INFO  L225             Difference]: With dead ends: 63358
[2019-09-07 16:02:30,788 INFO  L226             Difference]: Without dead ends: 42608
[2019-09-07 16:02:30,853 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:02:30,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42608 states.
[2019-09-07 16:02:31,840 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42608 to 42326.
[2019-09-07 16:02:31,841 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 16:02:31,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72396 transitions.
[2019-09-07 16:02:31,926 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72396 transitions. Word has length 10241
[2019-09-07 16:02:31,928 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:02:31,928 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72396 transitions.
[2019-09-07 16:02:31,928 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:02:31,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72396 transitions.
[2019-09-07 16:02:35,913 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10256
[2019-09-07 16:02:35,914 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:02:35,925 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:02:35,926 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:02:35,927 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:02:35,931 INFO  L82        PathProgramCache]: Analyzing trace with hash 1840630933, now seen corresponding path program 1 times
[2019-09-07 16:02:35,932 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:02:35,932 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:02:35,935 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:02:35,935 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:02:35,935 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:02:36,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:03:08,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:03:08,033 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:03:08,033 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 16:03:08,050 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:03:10,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:03:11,029 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12350 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-07 16:03:11,201 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:03:45,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:03:45,480 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-07 16:03:45,482 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2019-09-07 16:03:45,516 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-07 16:03:45,516 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-07 16:03:45,517 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:03:45,517 INFO  L87              Difference]: Start difference. First operand 42326 states and 72396 transitions. Second operand 9 states.
[2019-09-07 16:06:10,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:06:10,829 INFO  L93              Difference]: Finished difference Result 177100 states and 318271 transitions.
[2019-09-07 16:06:10,829 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2019-09-07 16:06:10,829 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 10255
[2019-09-07 16:06:10,829 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:06:11,366 INFO  L225             Difference]: With dead ends: 177100
[2019-09-07 16:06:11,366 INFO  L226             Difference]: Without dead ends: 134780
[2019-09-07 16:06:11,511 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10271 GetRequests, 10257 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240
[2019-09-07 16:06:11,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 134780 states.
[2019-09-07 16:06:15,882 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 134780 to 131538.
[2019-09-07 16:06:15,882 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 131538 states.
[2019-09-07 16:06:21,559 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131538 states to 131538 states and 211213 transitions.
[2019-09-07 16:06:21,560 INFO  L78                 Accepts]: Start accepts. Automaton has 131538 states and 211213 transitions. Word has length 10255
[2019-09-07 16:06:21,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:06:21,562 INFO  L475      AbstractCegarLoop]: Abstraction has 131538 states and 211213 transitions.
[2019-09-07 16:06:21,562 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-09-07 16:06:21,562 INFO  L276                IsEmpty]: Start isEmpty. Operand 131538 states and 211213 transitions.
[2019-09-07 16:06:22,428 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10255
[2019-09-07 16:06:22,428 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:06:22,434 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:06:22,434 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:06:22,435 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:06:22,437 INFO  L82        PathProgramCache]: Analyzing trace with hash 27126947, now seen corresponding path program 1 times
[2019-09-07 16:06:22,437 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:06:22,438 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:06:22,440 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:06:22,441 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:06:22,441 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:06:23,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:06:57,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:06:57,124 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:06:57,125 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:06:57,132 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:06:57,132 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:06:57,133 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:06:57,133 INFO  L87              Difference]: Start difference. First operand 131538 states and 211213 transitions. Second operand 6 states.
[2019-09-07 16:08:18,829 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:08:18,829 INFO  L93              Difference]: Finished difference Result 314687 states and 527513 transitions.
[2019-09-07 16:08:18,830 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:08:18,830 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10254
[2019-09-07 16:08:18,830 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:08:19,358 INFO  L225             Difference]: With dead ends: 314687
[2019-09-07 16:08:19,359 INFO  L226             Difference]: Without dead ends: 183155
[2019-09-07 16:08:19,532 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:08:19,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183155 states.
[2019-09-07 16:08:22,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183155 to 181129.
[2019-09-07 16:08:22,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 181129 states.
[2019-09-07 16:08:23,370 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181129 states to 181129 states and 291215 transitions.
[2019-09-07 16:08:23,372 INFO  L78                 Accepts]: Start accepts. Automaton has 181129 states and 291215 transitions. Word has length 10254
[2019-09-07 16:08:23,375 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:08:23,376 INFO  L475      AbstractCegarLoop]: Abstraction has 181129 states and 291215 transitions.
[2019-09-07 16:08:23,376 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:08:23,376 INFO  L276                IsEmpty]: Start isEmpty. Operand 181129 states and 291215 transitions.
[2019-09-07 16:08:30,617 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10265
[2019-09-07 16:08:30,617 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:08:30,623 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:08:30,623 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:08:30,624 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:08:30,627 INFO  L82        PathProgramCache]: Analyzing trace with hash 1054606899, now seen corresponding path program 1 times
[2019-09-07 16:08:30,628 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:08:30,628 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:08:30,631 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:08:30,631 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:08:30,631 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:08:31,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat