java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loop-new/half.i


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This is Ultimate 0.1.24-c6af20d
[2019-09-03 18:13:54,325 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-03 18:13:54,327 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-03 18:13:54,338 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-03 18:13:54,339 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-03 18:13:54,340 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-03 18:13:54,341 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-03 18:13:54,343 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-03 18:13:54,345 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-03 18:13:54,346 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-03 18:13:54,347 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-03 18:13:54,348 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-03 18:13:54,348 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-03 18:13:54,349 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-03 18:13:54,350 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-03 18:13:54,351 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-03 18:13:54,352 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-03 18:13:54,353 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-03 18:13:54,354 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-03 18:13:54,356 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-03 18:13:54,358 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-03 18:13:54,359 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-03 18:13:54,360 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-03 18:13:54,361 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-03 18:13:54,363 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-09-03 18:13:54,363 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2019-09-03 18:13:54,369 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-03 18:13:54,370 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-03 18:13:54,372 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-03 18:13:54,372 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
[2019-09-03 18:13:54,387 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-03 18:13:54,387 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-03 18:13:54,389 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-03 18:13:54,389 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-03 18:13:54,389 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-03 18:13:54,389 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-03 18:13:54,390 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-03 18:13:54,391 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-03 18:13:54,391 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-03 18:13:54,391 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-03 18:13:54,391 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-03 18:13:54,391 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-03 18:13:54,392 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-03 18:13:54,392 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-03 18:13:54,392 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-03 18:13:54,392 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-03 18:13:54,392 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-03 18:13:54,393 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-03 18:13:54,393 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-03 18:13:54,393 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-03 18:13:54,393 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-03 18:13:54,393 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-03 18:13:54,394 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-03 18:13:54,394 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain
[2019-09-03 18:13:54,428 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-03 18:13:54,441 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-03 18:13:54,444 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-03 18:13:54,446 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-03 18:13:54,446 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-03 18:13:54,447 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i
[2019-09-03 18:13:54,515 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9726cbfe/b4294e6509854ab1b1c83fd041da3a57/FLAGfb38e80e8
[2019-09-03 18:13:55,005 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-03 18:13:55,006 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i
[2019-09-03 18:13:55,014 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9726cbfe/b4294e6509854ab1b1c83fd041da3a57/FLAGfb38e80e8
[2019-09-03 18:13:55,378 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9726cbfe/b4294e6509854ab1b1c83fd041da3a57
[2019-09-03 18:13:55,392 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-03 18:13:55,394 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-03 18:13:55,395 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-03 18:13:55,395 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-03 18:13:55,399 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-03 18:13:55,400 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,403 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6337a235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55, skipping insertion in model container
[2019-09-03 18:13:55,403 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,410 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-03 18:13:55,430 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-03 18:13:55,595 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-03 18:13:55,600 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-03 18:13:55,618 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-03 18:13:55,633 INFO  L192         MainTranslator]: Completed translation
[2019-09-03 18:13:55,633 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55 WrapperNode
[2019-09-03 18:13:55,634 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-03 18:13:55,634 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-03 18:13:55,635 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-03 18:13:55,635 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-03 18:13:55,741 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,741 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,747 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,748 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,751 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,755 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,756 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (1/1) ...
[2019-09-03 18:13:55,758 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-03 18:13:55,758 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-03 18:13:55,758 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-03 18:13:55,758 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-03 18:13:55,759 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 06:13:55" (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
[2019-09-03 18:13:55,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-03 18:13:55,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-03 18:13:55,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-09-03 18:13:55,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-03 18:13:55,806 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-03 18:13:55,806 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-09-03 18:13:55,806 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-09-03 18:13:55,807 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-03 18:13:55,807 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-03 18:13:55,807 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-03 18:13:55,807 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-03 18:13:56,012 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-03 18:13:56,013 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-03 18:13:56,014 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 06:13:56 BoogieIcfgContainer
[2019-09-03 18:13:56,015 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-03 18:13:56,015 INFO  L113        PluginConnector]: ------------------------Sifa----------------------------
[2019-09-03 18:13:56,015 INFO  L271        PluginConnector]: Initializing Sifa...
[2019-09-03 18:13:56,016 INFO  L275        PluginConnector]: Sifa initialized
[2019-09-03 18:13:56,017 INFO  L185        PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 06:13:56" (1/1) ...
[2019-09-03 18:13:56,018 INFO  L79            SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds
(negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than
(negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid
[2019-09-03 18:13:56,079 INFO  L162        IcfgInterpreter]: Started Sifa with 1 locations of interest
[2019-09-03 18:13:56,079 INFO  L169        IcfgInterpreter]: Building call graph
[2019-09-03 18:13:56,089 INFO  L174        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-09-03 18:13:56,102 INFO  L179        IcfgInterpreter]: Starting interpretation
[2019-09-03 18:13:56,103 INFO  L199        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-09-03 18:13:56,166 INFO  L199        IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs