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_label39.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:03:01,830 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:03:01,832 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:03:01,845 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:03:01,845 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:03:01,847 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:03:01,848 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:03:01,850 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:03:01,851 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:03:01,852 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:03:01,853 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:03:01,854 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:03:01,855 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:03:01,856 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:03:01,857 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:03:01,858 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:03:01,859 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:03:01,860 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:03:01,862 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:03:01,864 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:03:01,866 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:03:01,867 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:03:01,868 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:03:01,869 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:03:01,871 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:03:01,871 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:03:01,872 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:03:01,873 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:03:01,873 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 16:03:01,874 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:03:01,874 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:03:01,876 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:03:01,877 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:03:01,878 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:03:01,878 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 16:03:01,879 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 16:03:01,879 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 16:03:01,879 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 16:03:01,881 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:03:01,882 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 16:03:01,906 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:03:01,907 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:03:01,909 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:03:01,909 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:03:01,909 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:03:01,910 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:03:01,910 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:03:01,910 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:03:01,911 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:03:01,911 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:03:01,912 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:03:01,912 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:03:01,912 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:03:01,913 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:03:01,913 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:03:01,913 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:03:01,913 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:03:01,914 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:03:01,914 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:03:01,914 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:03:01,914 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:03:01,915 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:03:01,915 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:03:01,915 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:03:01,916 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:03:01,916 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:03:01,916 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:03:01,916 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:03:01,916 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:03:01,970 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:03:01,990 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:03:01,995 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:03:01,997 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:03:01,997 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:03:01,998 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label39.c
[2019-09-07 16:03:02,077 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef2bb64f/be227149a84b465c889853eb0fc4af32/FLAGb3e546162
[2019-09-07 16:03:04,840 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:03:04,841 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label39.c
[2019-09-07 16:03:05,019 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef2bb64f/be227149a84b465c889853eb0fc4af32/FLAGb3e546162
[2019-09-07 16:03:05,289 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef2bb64f/be227149a84b465c889853eb0fc4af32
[2019-09-07 16:03:05,299 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:03:05,301 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:03:05,302 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:03:05,302 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:03:05,305 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:03:05,306 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:03:05" (1/1) ...
[2019-09-07 16:03:05,308 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0d77d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:05, skipping insertion in model container
[2019-09-07 16:03:05,309 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:03:05" (1/1) ...
[2019-09-07 16:03:05,315 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:03:06,781 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:03:20,245 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:03:20,251 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:03:29,819 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:03:31,323 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:03:31,324 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31 WrapperNode
[2019-09-07 16:03:31,324 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:03:31,326 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:03:31,326 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:03:31,326 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:03:31,338 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:31,339 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:31,851 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:31,852 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:33,018 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:33,345 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:37,733 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (1/1) ...
[2019-09-07 16:03:38,497 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:03:38,498 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:03:38,498 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:03:38,498 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:03:38,500 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (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 16:03:38,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:03:38,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:03:38,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:03:38,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:03:38,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:03:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:03:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:03:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:03:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:03:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:03:38,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:03:38,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:03:38,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:03:38,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:03:38,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:03:38,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:03:38,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:03:38,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:03:38,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:03:38,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:03:38,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:03:38,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:03:38,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:03:38,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:03:38,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:03:38,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:03:38,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:03:38,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:03:38,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:03:38,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:03:38,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:03:38,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:03:38,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:03:38,588 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:03:38,588 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:03:38,589 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:03:38,590 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:03:38,591 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:03:38,591 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:03:38,591 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:03:38,591 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:03:38,591 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:03:38,592 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:03:38,592 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:03:38,592 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:03:38,593 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:03:38,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:03:38,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:03:38,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:03:38,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:03:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:03:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:03:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:03:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:03:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:03:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:04:25,042 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:04:25,042 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:04:25,048 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:04:25 BoogieIcfgContainer
[2019-09-07 16:04:25,049 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:04:25,050 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:04:25,050 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:04:25,053 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:04:25,054 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:03:05" (1/3) ...
[2019-09-07 16:04:25,055 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30799040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:04:25, skipping insertion in model container
[2019-09-07 16:04:25,055 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:03:31" (2/3) ...
[2019-09-07 16:04:25,055 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30799040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:04:25, skipping insertion in model container
[2019-09-07 16:04:25,055 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:04:25" (3/3) ...
[2019-09-07 16:04:25,057 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label39.c
[2019-09-07 16:04:25,067 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:04:25,080 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:04:25,097 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:04:25,174 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:04:25,174 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:04:25,175 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:04:25,175 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:04:25,175 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:04:25,175 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:04:25,175 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:04:25,175 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:04:25,175 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:04:25,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:04:26,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10188
[2019-09-07 16:04:26,465 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:04:26,472 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 16:04:26,476 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:04:26,482 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:04:26,488 INFO  L82        PathProgramCache]: Analyzing trace with hash 895069965, now seen corresponding path program 1 times
[2019-09-07 16:04:26,491 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:04:26,491 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:04:26,550 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:04:26,550 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:04:26,552 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:04:29,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:06:07,719 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 16:06:07,722 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:06:07,724 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:06:07,746 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:06:07,760 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:06:07,763 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:06:07,765 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:07:06,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:07:06,139 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:07:06,144 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:07:06,146 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10187
[2019-09-07 16:07:06,174 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:07:06,393 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:07:06,394 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:07:06,437 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 16:07:06,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:07:07,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:07:07,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:07:07,250 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40354 transitions.
[2019-09-07 16:07:07,252 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40354 transitions. Word has length 10187
[2019-09-07 16:07:07,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:07:07,275 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40354 transitions.
[2019-09-07 16:07:07,275 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:07:07,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40354 transitions.
[2019-09-07 16:07:08,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10197
[2019-09-07 16:07:08,157 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:07:08,162 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:07:08,163 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:07:08,164 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:07:08,167 INFO  L82        PathProgramCache]: Analyzing trace with hash 120501095, now seen corresponding path program 1 times
[2019-09-07 16:07:08,168 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:07:08,168 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:07:08,171 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:07:08,171 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:07:08,171 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:07:08,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:07:43,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:07:43,931 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:07:43,933 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 16:07:43,948 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 16:07:43,949 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 16:07:43,950 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 16:07:43,950 INFO  L87              Difference]: Start difference. First operand 20756 states and 40354 transitions. Second operand 5 states.
[2019-09-07 16:08:58,073 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:08:58,074 INFO  L93              Difference]: Finished difference Result 63355 states and 123175 transitions.
[2019-09-07 16:08:58,074 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:08:58,074 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10196
[2019-09-07 16:08:58,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:08:58,241 INFO  L225             Difference]: With dead ends: 63355
[2019-09-07 16:08:58,241 INFO  L226             Difference]: Without dead ends: 42605
[2019-09-07 16:08:58,290 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 16:08:58,359 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42605 states.
[2019-09-07 16:08:59,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42605 to 42326.
[2019-09-07 16:08:59,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 16:08:59,803 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72775 transitions.
[2019-09-07 16:08:59,804 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72775 transitions. Word has length 10196
[2019-09-07 16:08:59,806 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:08:59,806 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72775 transitions.
[2019-09-07 16:08:59,806 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 16:08:59,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72775 transitions.
[2019-09-07 16:09:03,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10200
[2019-09-07 16:09:03,822 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:09:03,826 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:09:03,827 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:09:03,828 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:09:03,831 INFO  L82        PathProgramCache]: Analyzing trace with hash 1236766561, now seen corresponding path program 1 times
[2019-09-07 16:09:03,831 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:09:03,831 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:09:03,833 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:09:03,833 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:09:03,833 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:09:04,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:09:42,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:09:42,454 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:09:42,455 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:09:42,461 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:09:42,461 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:09:42,461 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:09:42,461 INFO  L87              Difference]: Start difference. First operand 42326 states and 72775 transitions. Second operand 6 states.
[2019-09-07 16:11:11,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:11:11,059 INFO  L93              Difference]: Finished difference Result 130482 states and 228494 transitions.
[2019-09-07 16:11:11,060 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:11:11,060 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10199
[2019-09-07 16:11:11,060 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:11:11,339 INFO  L225             Difference]: With dead ends: 130482
[2019-09-07 16:11:11,339 INFO  L226             Difference]: Without dead ends: 88162
[2019-09-07 16:11:11,426 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 16:11:11,526 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88162 states.
[2019-09-07 16:11:13,621 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88162 to 87056.
[2019-09-07 16:11:13,621 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 87056 states.
[2019-09-07 16:11:13,803 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87056 states to 87056 states and 146985 transitions.
[2019-09-07 16:11:13,805 INFO  L78                 Accepts]: Start accepts. Automaton has 87056 states and 146985 transitions. Word has length 10199
[2019-09-07 16:11:13,807 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:11:13,807 INFO  L475      AbstractCegarLoop]: Abstraction has 87056 states and 146985 transitions.
[2019-09-07 16:11:13,807 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:11:13,807 INFO  L276                IsEmpty]: Start isEmpty. Operand 87056 states and 146985 transitions.
[2019-09-07 16:11:17,848 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10205
[2019-09-07 16:11:17,848 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:11:17,853 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:11:17,854 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:11:17,855 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:11:17,857 INFO  L82        PathProgramCache]: Analyzing trace with hash 1610724379, now seen corresponding path program 1 times
[2019-09-07 16:11:17,858 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:11:17,858 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:11:17,860 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:11:17,860 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:11:17,860 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:11:18,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:11:52,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:11:52,910 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:11:52,910 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 16:11:52,926 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:11:56,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:11:56,081 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12302 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 16:11:56,292 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:12:56,781 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 16:12:56,793 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:12:56,796 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 16:12:56,831 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 16:12:56,831 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 16:12:56,832 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 16:12:56,832 INFO  L87              Difference]: Start difference. First operand 87056 states and 146985 transitions. Second operand 7 states.
[2019-09-07 16:15:28,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:15:28,456 INFO  L93              Difference]: Finished difference Result 361094 states and 659613 transitions.
[2019-09-07 16:15:28,459 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2019-09-07 16:15:28,459 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10204
[2019-09-07 16:15:28,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.