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_label20.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 23:52:53,599 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 23:52:53,601 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 23:52:53,613 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 23:52:53,614 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 23:52:53,615 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 23:52:53,616 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-07 23:52:53,619 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 23:52:53,620 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2019-09-07 23:52:53,622 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 23:52:53,623 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 23:52:53,624 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 23:52:53,625 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 23:52:53,626 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 23:52:53,626 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 23:52:53,627 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 23:52:53,629 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 23:52:53,631 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 23:52:53,633 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 23:52:53,634 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 23:52:53,635 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 23:52:53,636 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 23:52:53,639 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 23:52:53,639 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 23:52:53,639 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 23:52:53,640 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 23:52:53,641 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2019-09-07 23:52:53,642 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 23:52:53,644 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 23:52:53,645 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 23:52:53,646 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 23:52:53,646 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 23:52:53,647 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 23:52:53,649 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 23:52:53,650 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 23:52:53,677 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 23:52:53,678 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 23:52:53,680 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 23:52:53,681 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 23:52:53,681 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 23:52:53,682 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 23:52:53,682 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 23:52:53,682 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 23:52:53,682 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 23:52:53,682 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 23:52:53,683 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 23:52:53,683 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 23:52:53,683 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 23:52:53,684 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 23:52:53,684 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 23:52:53,684 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 23:52:53,685 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 23:52:53,685 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 23:52:53,685 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 23:52:53,686 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 23:52:53,686 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 23:52:53,686 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 23:52:53,686 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 23:52:53,687 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 23:52:53,687 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 23:52:53,687 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 23:52:53,688 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 23:52:53,688 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 23:52:53,688 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 23:52:53,726 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 23:52:53,739 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 23:52:53,742 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 23:52:53,744 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 23:52:53,744 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 23:52:53,745 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label20.c
[2019-09-07 23:52:53,808 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51d2aa89/76e58110f0f340bdb88c353e267dcd00/FLAGd5a70bc7a
[2019-09-07 23:52:56,148 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 23:52:56,148 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label20.c
[2019-09-07 23:52:56,306 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51d2aa89/76e58110f0f340bdb88c353e267dcd00/FLAGd5a70bc7a
[2019-09-07 23:52:56,643 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d51d2aa89/76e58110f0f340bdb88c353e267dcd00
[2019-09-07 23:52:56,654 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 23:52:56,656 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 23:52:56,657 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 23:52:56,657 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 23:52:56,661 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 23:52:56,662 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:52:56" (1/1) ...
[2019-09-07 23:52:56,666 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf01bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:52:56, skipping insertion in model container
[2019-09-07 23:52:56,666 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:52:56" (1/1) ...
[2019-09-07 23:52:56,675 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 23:52:58,186 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 23:53:10,648 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:53:10,654 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 23:53:19,094 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:53:23,855 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 23:53:23,855 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23 WrapperNode
[2019-09-07 23:53:23,856 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 23:53:23,856 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 23:53:23,857 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 23:53:23,857 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 23:53:23,867 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:23,867 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:24,347 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:24,347 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:25,519 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:25,751 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:26,126 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (1/1) ...
[2019-09-07 23:53:30,454 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 23:53:30,455 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 23:53:30,455 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 23:53:30,455 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 23:53:30,456 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (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 23:53:30,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 23:53:30,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 23:53:30,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 23:53:30,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 23:53:30,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 23:53:30,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 23:53:30,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 23:53:30,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 23:53:30,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 23:53:30,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 23:53:30,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 23:53:30,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 23:53:30,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 23:53:30,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 23:53:30,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 23:53:30,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 23:53:30,518 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 23:53:30,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 23:53:30,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 23:53:30,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 23:53:30,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 23:53:30,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 23:53:30,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 23:53:30,520 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 23:53:30,520 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 23:53:30,521 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 23:53:30,522 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 23:53:30,523 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 23:53:30,524 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 23:53:30,525 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 23:53:30,526 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 23:53:30,527 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 23:53:30,528 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 23:53:30,528 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 23:53:30,528 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 23:53:30,528 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 23:54:16,642 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 23:54:16,643 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 23:54:16,648 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:54:16 BoogieIcfgContainer
[2019-09-07 23:54:16,648 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 23:54:16,649 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 23:54:16,649 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 23:54:16,652 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 23:54:16,653 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:52:56" (1/3) ...
[2019-09-07 23:54:16,653 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10601d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:54:16, skipping insertion in model container
[2019-09-07 23:54:16,654 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:53:23" (2/3) ...
[2019-09-07 23:54:16,654 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10601d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:54:16, skipping insertion in model container
[2019-09-07 23:54:16,654 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:54:16" (3/3) ...
[2019-09-07 23:54:16,656 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem101_label20.c
[2019-09-07 23:54:16,665 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 23:54:16,676 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 23:54:16,693 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 23:54:16,765 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 23:54:16,766 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 23:54:16,766 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 23:54:16,767 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 23:54:16,767 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 23:54:16,767 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 23:54:16,767 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 23:54:16,767 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 23:54:16,767 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 23:54:16,897 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 23:54:17,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10200
[2019-09-07 23:54:17,989 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:54:17,997 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 23:54:18,000 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:54:18,009 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:54:18,016 INFO  L82        PathProgramCache]: Analyzing trace with hash 1491915005, now seen corresponding path program 1 times
[2019-09-07 23:54:18,018 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:54:18,018 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:54:18,072 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:54:18,073 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:54:18,073 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:54:20,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:56:00,449 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 23:56:00,452 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:56:00,454 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 23:56:00,472 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 23:56:00,486 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 23:56:00,487 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:56:00,489 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 23:56:56,758 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:56:56,758 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 23:56:56,760 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 23:56:56,761 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10199
[2019-09-07 23:56:56,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:56:57,000 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 23:56:57,001 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 23:56:57,049 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 23:56:57,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 23:56:57,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 23:56:57,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 23:56:57,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40378 transitions.
[2019-09-07 23:56:57,982 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40378 transitions. Word has length 10199
[2019-09-07 23:56:58,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:56:58,005 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40378 transitions.
[2019-09-07 23:56:58,005 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 23:56:58,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40378 transitions.
[2019-09-07 23:56:58,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10208
[2019-09-07 23:56:58,778 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:56:58,784 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 23:56:58,784 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:56:58,785 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:56:58,788 INFO  L82        PathProgramCache]: Analyzing trace with hash -343170103, now seen corresponding path program 1 times
[2019-09-07 23:56:58,788 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:56:58,788 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:56:58,791 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:56:58,792 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:56:58,792 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:57:00,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:58:22,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:58:22,070 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:58:22,070 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 23:58:22,083 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 23:58:22,083 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 23:58:22,083 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:58:22,084 INFO  L87              Difference]: Start difference. First operand 20756 states and 40378 transitions. Second operand 3 states.
[2019-09-07 23:59:13,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:59:13,119 INFO  L93              Difference]: Finished difference Result 62254 states and 121673 transitions.
[2019-09-07 23:59:13,119 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 23:59:13,119 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10207
[2019-09-07 23:59:13,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:59:13,249 INFO  L225             Difference]: With dead ends: 62254
[2019-09-07 23:59:13,249 INFO  L226             Difference]: Without dead ends: 41504
[2019-09-07 23:59:13,293 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 23:59:13,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41504 states.
[2019-09-07 23:59:14,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 41504.
[2019-09-07 23:59:14,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41504 states.
[2019-09-07 23:59:14,115 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41504 states to 41504 states and 71942 transitions.
[2019-09-07 23:59:14,116 INFO  L78                 Accepts]: Start accepts. Automaton has 41504 states and 71942 transitions. Word has length 10207
[2019-09-07 23:59:14,118 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:59:14,118 INFO  L475      AbstractCegarLoop]: Abstraction has 41504 states and 71942 transitions.
[2019-09-07 23:59:14,118 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 23:59:14,118 INFO  L276                IsEmpty]: Start isEmpty. Operand 41504 states and 71942 transitions.
[2019-09-07 23:59:15,079 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10210
[2019-09-07 23:59:15,079 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:59:15,085 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 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[2019-09-07 23:59:15,085 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:59:15,086 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:59:15,088 INFO  L82        PathProgramCache]: Analyzing trace with hash 777841549, now seen corresponding path program 1 times
[2019-09-07 23:59:15,089 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:59:15,089 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:59:15,091 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:15,091 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:59:15,093 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:15,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:59:50,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:59:50,958 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:59:50,959 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 23:59:50,967 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 23:59:50,968 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 23:59:50,968 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 23:59:50,968 INFO  L87              Difference]: Start difference. First operand 41504 states and 71942 transitions. Second operand 5 states.
[2019-09-08 00:01:04,586 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 00:01:04,587 INFO  L93              Difference]: Finished difference Result 126494 states and 222164 transitions.
[2019-09-08 00:01:04,587 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-08 00:01:04,587 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10209
[2019-09-08 00:01:04,587 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 00:01:04,928 INFO  L225             Difference]: With dead ends: 126494
[2019-09-08 00:01:04,928 INFO  L226             Difference]: Without dead ends: 84996
[2019-09-08 00:01:05,017 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-08 00:01:05,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84996 states.
[2019-09-08 00:01:06,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84996 to 84432.
[2019-09-08 00:01:06,432 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 84432 states.
[2019-09-08 00:01:06,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84432 states to 84432 states and 145408 transitions.
[2019-09-08 00:01:06,609 INFO  L78                 Accepts]: Start accepts. Automaton has 84432 states and 145408 transitions. Word has length 10209
[2019-09-08 00:01:06,612 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-08 00:01:06,612 INFO  L475      AbstractCegarLoop]: Abstraction has 84432 states and 145408 transitions.
[2019-09-08 00:01:06,612 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-08 00:01:06,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 84432 states and 145408 transitions.
[2019-09-08 00:01:07,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10240
[2019-09-08 00:01:07,830 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-08 00:01:07,834 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2019-09-08 00:01:07,835 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 00:01:07,835 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 00:01:07,837 INFO  L82        PathProgramCache]: Analyzing trace with hash 1947934729, now seen corresponding path program 1 times
[2019-09-08 00:01:07,838 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 00:01:07,838 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 00:01:07,839 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:01:07,840 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:01:07,840 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:01:08,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:01:42,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 00:01:42,677 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-08 00:01:42,678 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-08 00:01:42,683 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-08 00:01:42,683 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-08 00:01:42,684 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-08 00:01:42,684 INFO  L87              Difference]: Start difference. First operand 84432 states and 145408 transitions. Second operand 6 states.
[2019-09-08 00:03:02,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 00:03:02,765 INFO  L93              Difference]: Finished difference Result 257508 states and 459993 transitions.
[2019-09-08 00:03:02,766 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-08 00:03:02,766 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10239
[2019-09-08 00:03:02,766 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 00:03:03,712 INFO  L225             Difference]: With dead ends: 257508
[2019-09-08 00:03:03,713 INFO  L226             Difference]: Without dead ends: 173082
[2019-09-08 00:03:03,869 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-08 00:03:04,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 173082 states.
[2019-09-08 00:03:06,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 173082 to 171659.
[2019-09-08 00:03:06,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 171659 states.
[2019-09-08 00:03:07,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171659 states to 171659 states and 295598 transitions.
[2019-09-08 00:03:07,446 INFO  L78                 Accepts]: Start accepts. Automaton has 171659 states and 295598 transitions. Word has length 10239
[2019-09-08 00:03:07,448 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-08 00:03:07,449 INFO  L475      AbstractCegarLoop]: Abstraction has 171659 states and 295598 transitions.
[2019-09-08 00:03:07,449 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-08 00:03:07,449 INFO  L276                IsEmpty]: Start isEmpty. Operand 171659 states and 295598 transitions.
[2019-09-08 00:03:13,527 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10271
[2019-09-08 00:03:13,527 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-08 00:03:13,534 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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[2019-09-08 00:03:13,535 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 00:03:13,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 00:03:13,538 INFO  L82        PathProgramCache]: Analyzing trace with hash 1304132247, now seen corresponding path program 1 times
[2019-09-08 00:03:13,538 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 00:03:13,538 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 00:03:13,540 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:03:13,541 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:03:13,541 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 00:03:14,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:03:46,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2019-09-08 00:03:46,594 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-08 00:03:46,594 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 00:03:46,607 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 00:03:49,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 00:03:49,394 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12411 conjuncts, 6 conjunts are in the unsatisfiable core
[2019-09-08 00:03:49,570 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-08 00:04:21,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2019-09-08 00:04:21,325 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-08 00:04:21,327 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9
[2019-09-08 00:04:21,350 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-08 00:04:21,350 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-08 00:04:21,351 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2019-09-08 00:04:21,351 INFO  L87              Difference]: Start difference. First operand 171659 states and 295598 transitions. Second operand 9 states.