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-programs/Problem101_label22.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 23:53:58,900 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 23:53:58,902 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 23:53:58,914 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 23:53:58,915 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 23:53:58,916 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2019-09-07 23:53:58,923 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 23:53:58,923 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 23:53:58,924 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 23:53:58,925 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 23:53:58,926 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 23:53:58,927 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 23:53:58,928 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 23:53:58,930 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 23:53:58,932 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 23:53:58,933 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 23:53:58,935 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 23:53:58,936 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 23:53:58,937 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 23:53:58,939 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 23:53:58,939 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 23:53:58,940 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 23:53:58,941 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 23:53:58,941 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 23:53:58,942 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 23:53:58,942 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 23:53:58,945 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 23:53:58,946 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 23:53:58,946 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 23:53:58,947 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 23:53:58,949 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 23:53:58,950 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 23:53:58,965 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 23:53:58,965 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 23:53:58,966 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 23:53:58,967 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 23:53:58,967 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 23:53:58,967 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 23:53:58,967 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 23:53:58,968 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 23:53:58,968 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 23:53:58,968 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 23:53:58,968 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 23:53:58,968 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 23:53:58,969 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 23:53:58,969 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 23:53:58,969 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 23:53:58,969 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 23:53:58,969 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 23:53:58,970 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 23:53:58,970 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 23:53:58,970 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 23:53:58,970 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 23:53:58,970 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 23:53:58,971 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 23:53:58,971 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 23:53:58,971 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 23:53:58,971 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 23:53:58,972 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 23:53:58,972 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 23:53:58,972 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 23:53:59,001 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 23:53:59,015 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 23:53:59,018 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 23:53:59,020 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 23:53:59,020 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 23:53:59,021 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label22.c
[2019-09-07 23:53:59,082 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3d27b3f/f2d2ca07887d4b3babb1e3706651097e/FLAG0e51d1be4
[2019-09-07 23:54:01,510 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 23:54:01,511 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label22.c
[2019-09-07 23:54:01,696 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3d27b3f/f2d2ca07887d4b3babb1e3706651097e/FLAG0e51d1be4
[2019-09-07 23:54:02,007 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae3d27b3f/f2d2ca07887d4b3babb1e3706651097e
[2019-09-07 23:54:02,020 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 23:54:02,021 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 23:54:02,023 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 23:54:02,023 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 23:54:02,026 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 23:54:02,027 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:54:02" (1/1) ...
[2019-09-07 23:54:02,031 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6cf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:02, skipping insertion in model container
[2019-09-07 23:54:02,031 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:54:02" (1/1) ...
[2019-09-07 23:54:02,039 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 23:54:03,395 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 23:54:16,940 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:54:16,946 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 23:54:25,972 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:54:26,695 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 23:54:26,695 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26 WrapperNode
[2019-09-07 23:54:26,695 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 23:54:26,697 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 23:54:26,697 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 23:54:26,697 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 23:54:26,708 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:26,708 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:27,581 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:27,583 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:28,509 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:28,709 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:29,129 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (1/1) ...
[2019-09-07 23:54:29,546 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 23:54:29,547 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 23:54:29,547 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 23:54:29,547 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 23:54:29,548 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (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 23:54:29,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 23:54:29,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 23:54:29,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 23:54:29,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 23:54:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 23:54:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 23:54:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 23:54:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 23:54:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 23:54:29,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 23:54:29,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 23:54:29,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 23:54:29,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 23:54:29,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 23:54:29,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 23:54:29,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 23:54:29,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 23:54:29,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 23:54:29,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 23:54:29,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 23:54:29,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 23:54:29,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 23:54:29,607 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 23:54:29,607 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 23:54:29,607 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 23:54:29,608 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 23:54:29,609 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 23:54:29,610 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 23:54:29,611 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 23:54:29,612 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 23:54:29,613 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 23:54:29,614 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 23:54:29,615 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 23:54:29,615 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 23:55:17,045 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 23:55:17,046 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 23:55:17,053 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:55:17 BoogieIcfgContainer
[2019-09-07 23:55:17,053 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 23:55:17,054 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 23:55:17,054 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 23:55:17,058 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 23:55:17,058 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:54:02" (1/3) ...
[2019-09-07 23:55:17,059 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f64210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:55:17, skipping insertion in model container
[2019-09-07 23:55:17,059 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:54:26" (2/3) ...
[2019-09-07 23:55:17,059 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f64210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:55:17, skipping insertion in model container
[2019-09-07 23:55:17,059 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:55:17" (3/3) ...
[2019-09-07 23:55:17,061 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem101_label22.c
[2019-09-07 23:55:17,071 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 23:55:17,084 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 23:55:17,101 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 23:55:17,185 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 23:55:17,186 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 23:55:17,186 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 23:55:17,186 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 23:55:17,186 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 23:55:17,186 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 23:55:17,186 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 23:55:17,186 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 23:55:17,187 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 23:55:17,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 23:55:18,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10186
[2019-09-07 23:55:18,540 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:55:18,549 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 23:55:18,552 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:55:18,566 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:55:18,573 INFO  L82        PathProgramCache]: Analyzing trace with hash -1147671195, now seen corresponding path program 1 times
[2019-09-07 23:55:18,576 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:55:18,576 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:55:18,631 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:55:18,631 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:55:18,631 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:55:21,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:56:48,930 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 23:56:48,936 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:56:48,938 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 23:56:48,960 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 23:56:48,979 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 23:56:48,992 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:56:48,996 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 23:57:47,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:57:47,093 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 23:57:47,095 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 23:57:47,097 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10185
[2019-09-07 23:57:47,125 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:57:47,279 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 23:57:47,280 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 23:57:47,310 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:57:47,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 23:57:48,037 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 23:57:48,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 23:57:48,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 39358 transitions.
[2019-09-07 23:57:48,112 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 39358 transitions. Word has length 10185
[2019-09-07 23:57:48,130 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:57:48,131 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 39358 transitions.
[2019-09-07 23:57:48,131 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 23:57:48,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 39358 transitions.
[2019-09-07 23:57:51,162 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10203
[2019-09-07 23:57:51,162 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:57:51,168 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 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[2019-09-07 23:57:51,169 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:57:51,170 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:57:51,175 INFO  L82        PathProgramCache]: Analyzing trace with hash -520319153, now seen corresponding path program 1 times
[2019-09-07 23:57:51,175 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:57:51,175 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:57:51,179 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:57:51,180 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:57:51,180 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:57:51,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:58:23,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:58:23,231 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:58:23,232 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 23:58:23,246 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 23:58:23,247 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 23:58:23,247 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 23:58:23,247 INFO  L87              Difference]: Start difference. First operand 20756 states and 39358 transitions. Second operand 6 states.
[2019-09-07 23:59:36,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:59:36,787 INFO  L93              Difference]: Finished difference Result 63355 states and 120187 transitions.
[2019-09-07 23:59:36,791 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 23:59:36,791 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10202
[2019-09-07 23:59:36,792 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:59:36,978 INFO  L225             Difference]: With dead ends: 63355
[2019-09-07 23:59:36,978 INFO  L226             Difference]: Without dead ends: 42605
[2019-09-07 23:59:37,031 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 23:59:37,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42605 states.
[2019-09-07 23:59:38,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42605 to 42326.
[2019-09-07 23:59:38,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 23:59:38,287 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 71239 transitions.
[2019-09-07 23:59:38,288 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 71239 transitions. Word has length 10202
[2019-09-07 23:59:38,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:59:38,290 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 71239 transitions.
[2019-09-07 23:59:38,290 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 23:59:38,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 71239 transitions.
[2019-09-07 23:59:39,636 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10211
[2019-09-07 23:59:39,636 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:59:39,643 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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[2019-09-07 23:59:39,644 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:59:39,645 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:59:39,648 INFO  L82        PathProgramCache]: Analyzing trace with hash 1097939203, now seen corresponding path program 1 times
[2019-09-07 23:59:39,648 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:59:39,649 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:59:39,650 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:39,650 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:59:39,650 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:40,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:00:13,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 00:00:13,579 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-08 00:00:13,579 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
[2019-09-08 00:00:13,611 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:00:16,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:00:16,786 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12353 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-08 00:00:17,006 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-08 00:01:23,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-08 00:01:23,404 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-08 00:01:23,406 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-08 00:01:23,429 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-08 00:01:23,429 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-08 00:01:23,430 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2019-09-08 00:01:23,430 INFO  L87              Difference]: Start difference. First operand 42326 states and 71239 transitions. Second operand 7 states.
[2019-09-08 00:04:18,750 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 00:04:18,751 INFO  L93              Difference]: Finished difference Result 213465 states and 369279 transitions.
[2019-09-08 00:04:18,751 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2019-09-08 00:04:18,751 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10210
[2019-09-08 00:04:18,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 00:04:19,286 INFO  L225             Difference]: With dead ends: 213465
[2019-09-08 00:04:19,286 INFO  L226             Difference]: Without dead ends: 171145
[2019-09-08 00:04:19,412 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10224 GetRequests, 10214 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2019-09-08 00:04:19,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171145 states.
[2019-09-08 00:04:22,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171145 to 171129.
[2019-09-08 00:04:22,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 171129 states.
[2019-09-08 00:04:23,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171129 states to 171129 states and 251470 transitions.
[2019-09-08 00:04:23,171 INFO  L78                 Accepts]: Start accepts. Automaton has 171129 states and 251470 transitions. Word has length 10210
[2019-09-08 00:04:23,172 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-08 00:04:23,173 INFO  L475      AbstractCegarLoop]: Abstraction has 171129 states and 251470 transitions.
[2019-09-08 00:04:23,173 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-09-08 00:04:23,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 171129 states and 251470 transitions.
[2019-09-08 00:04:24,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10237
[2019-09-08 00:04:24,289 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-08 00:04:24,294 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, 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, 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[2019-09-08 00:04:24,295 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 00:04:24,295 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 00:04:24,298 INFO  L82        PathProgramCache]: Analyzing trace with hash 1315713271, now seen corresponding path program 1 times
[2019-09-08 00:04:24,298 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 00:04:24,298 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 00:04:24,301 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:04:24,301 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:04:24,301 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:04:24,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:05:00,880 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 00:05:00,880 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-08 00:05:00,880 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-08 00:05:00,896 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:05:03,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:05:03,831 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12381 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-08 00:05:03,975 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-08 00:05:34,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 00:05:34,045 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-08 00:05:34,047 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2019-09-08 00:05:34,059 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-08 00:05:34,059 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-08 00:05:34,059 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2019-09-08 00:05:34,060 INFO  L87              Difference]: Start difference. First operand 171129 states and 251470 transitions. Second operand 9 states.