/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex01-2.i


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


This is Ultimate 0.1.25-d623d84
[2020-07-21 01:43:14,407 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-21 01:43:14,410 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 01:43:14,422 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 01:43:14,423 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 01:43:14,424 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 01:43:14,425 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 01:43:14,427 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 01:43:14,429 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 01:43:14,430 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 01:43:14,431 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 01:43:14,432 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 01:43:14,432 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 01:43:14,433 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 01:43:14,434 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 01:43:14,435 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 01:43:14,436 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 01:43:14,437 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 01:43:14,438 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 01:43:14,440 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 01:43:14,442 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 01:43:14,443 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 01:43:14,444 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 01:43:14,445 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 01:43:14,447 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 01:43:14,447 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 01:43:14,448 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 01:43:14,448 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 01:43:14,449 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 01:43:14,450 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 01:43:14,450 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 01:43:14,451 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 01:43:14,451 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-21 01:43:14,452 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-21 01:43:14,453 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 01:43:14,453 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 01:43:14,454 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-21 01:43:14,454 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-21 01:43:14,456 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 01:43:14,457 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
[2020-07-21 01:43:14,471 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-21 01:43:14,471 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 01:43:14,472 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 01:43:14,473 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-21 01:43:14,473 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-21 01:43:14,473 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 01:43:14,473 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-21 01:43:14,473 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-21 01:43:14,474 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-21 01:43:14,474 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-21 01:43:14,474 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 01:43:14,474 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 01:43:14,475 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 01:43:14,475 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-21 01:43:14,475 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-21 01:43:14,475 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-21 01:43:14,475 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-21 01:43:14,476 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 01:43:14,476 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-21 01:43:14,476 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-21 01:43:14,476 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-21 01:43:14,477 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 01:43:14,477 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 01:43:14,477 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 01:43:14,477 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 01:43:14,478 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-21 01:43:14,478 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:43:14,478 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 01:43:14,478 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-21 01:43:14,479 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-21 01:43:14,825 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 01:43:14,841 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 01:43:14,845 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 01:43:14,846 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-21 01:43:14,847 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-21 01:43:14,848 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-2.i
[2020-07-21 01:43:14,922 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6965594df/1b1c9edf3e1348deb35b904f015dfbdc/FLAG20c32a410
[2020-07-21 01:43:15,389 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-21 01:43:15,389 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-2.i
[2020-07-21 01:43:15,399 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6965594df/1b1c9edf3e1348deb35b904f015dfbdc/FLAG20c32a410
[2020-07-21 01:43:15,734 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6965594df/1b1c9edf3e1348deb35b904f015dfbdc
[2020-07-21 01:43:15,742 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 01:43:15,745 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 01:43:15,746 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 01:43:15,746 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 01:43:15,749 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 01:43:15,750 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:43:15" (1/1) ...
[2020-07-21 01:43:15,753 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce438f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:15, skipping insertion in model container
[2020-07-21 01:43:15,754 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:43:15" (1/1) ...
[2020-07-21 01:43:15,761 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-21 01:43:15,784 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-21 01:43:16,002 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 01:43:16,006 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-21 01:43:16,027 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 01:43:16,042 INFO  L208         MainTranslator]: Completed translation
[2020-07-21 01:43:16,042 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16 WrapperNode
[2020-07-21 01:43:16,042 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 01:43:16,043 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 01:43:16,043 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 01:43:16,043 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 01:43:16,056 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,057 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,062 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,063 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,067 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,157 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,163 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (1/1) ...
[2020-07-21 01:43:16,165 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 01:43:16,166 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 01:43:16,169 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 01:43:16,169 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-21 01:43:16,170 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (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
[2020-07-21 01:43:16,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 01:43:16,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 01:43:16,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-21 01:43:16,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-21 01:43:16,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure f
[2020-07-21 01:43:16,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 01:43:16,254 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 01:43:16,255 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-07-21 01:43:16,255 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-21 01:43:16,255 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-21 01:43:16,256 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-07-21 01:43:16,256 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-21 01:43:16,256 INFO  L130     BoogieDeclarations]: Found specification of procedure f
[2020-07-21 01:43:16,256 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-21 01:43:16,256 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 01:43:16,257 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 01:43:16,527 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 01:43:16,527 INFO  L295             CfgBuilder]: Removed 2 assume(true) statements.
[2020-07-21 01:43:16,531 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:43:16 BoogieIcfgContainer
[2020-07-21 01:43:16,531 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 01:43:16,533 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 01:43:16,533 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 01:43:16,536 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-21 01:43:16,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:43:15" (1/3) ...
[2020-07-21 01:43:16,537 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672ee28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:43:16, skipping insertion in model container
[2020-07-21 01:43:16,538 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:43:16" (2/3) ...
[2020-07-21 01:43:16,538 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672ee28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:43:16, skipping insertion in model container
[2020-07-21 01:43:16,538 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:43:16" (3/3) ...
[2020-07-21 01:43:16,540 INFO  L109   eAbstractionObserver]: Analyzing ICFG trex01-2.i
[2020-07-21 01:43:16,553 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 01:43:16,561 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 01:43:16,575 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 01:43:16,599 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-21 01:43:16,599 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-21 01:43:16,600 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 01:43:16,600 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 01:43:16,600 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 01:43:16,600 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-21 01:43:16,600 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 01:43:16,600 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 01:43:16,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states.
[2020-07-21 01:43:16,646 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-07-21 01:43:16,647 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:43:16,648 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:43:16,650 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:43:16,659 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:43:16,659 INFO  L82        PathProgramCache]: Analyzing trace with hash -409844558, now seen corresponding path program 1 times
[2020-07-21 01:43:16,666 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:43:16,666 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38445583]
[2020-07-21 01:43:16,667 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:43:16,758 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-21 01:43:16,759 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:43:16,761 INFO  L263         TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-21 01:43:16,767 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:43:16,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:43:16,791 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 01:43:16,792 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38445583]
[2020-07-21 01:43:16,793 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 01:43:16,793 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-21 01:43:16,794 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945849569]
[2020-07-21 01:43:16,798 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-21 01:43:16,798 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:43:16,809 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-21 01:43:16,810 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 01:43:16,812 INFO  L87              Difference]: Start difference. First operand 31 states. Second operand 2 states.
[2020-07-21 01:43:16,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:43:16,835 INFO  L93              Difference]: Finished difference Result 51 states and 70 transitions.
[2020-07-21 01:43:16,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-07-21 01:43:16,837 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 14
[2020-07-21 01:43:16,837 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:43:16,852 INFO  L225             Difference]: With dead ends: 51
[2020-07-21 01:43:16,852 INFO  L226             Difference]: Without dead ends: 16
[2020-07-21 01:43:16,861 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 01:43:16,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2020-07-21 01:43:16,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2020-07-21 01:43:16,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 16 states.
[2020-07-21 01:43:16,891 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2020-07-21 01:43:16,892 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14
[2020-07-21 01:43:16,892 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:43:16,892 INFO  L479      AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2020-07-21 01:43:16,893 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-21 01:43:16,893 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2020-07-21 01:43:16,894 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-07-21 01:43:16,894 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:43:16,894 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:43:17,103 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:43:17,104 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:43:17,105 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:43:17,107 INFO  L82        PathProgramCache]: Analyzing trace with hash -413538642, now seen corresponding path program 1 times
[2020-07-21 01:43:17,107 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:43:17,108 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345500175]
[2020-07-21 01:43:17,108 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:43:17,149 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 01:43:17,150 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:43:17,152 INFO  L263         TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-21 01:43:17,155 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:43:17,207 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-21 01:43:17,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:43:17,247 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 01:43:17,248 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345500175]
[2020-07-21 01:43:17,248 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 01:43:17,248 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-21 01:43:17,249 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432776223]
[2020-07-21 01:43:17,251 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-21 01:43:17,251 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:43:17,252 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-21 01:43:17,252 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-21 01:43:17,252 INFO  L87              Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states.
[2020-07-21 01:43:17,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:43:17,300 INFO  L93              Difference]: Finished difference Result 16 states and 17 transitions.
[2020-07-21 01:43:17,300 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-21 01:43:17,301 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2020-07-21 01:43:17,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:43:17,301 INFO  L225             Difference]: With dead ends: 16
[2020-07-21 01:43:17,302 INFO  L226             Difference]: Without dead ends: 0
[2020-07-21 01:43:17,303 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-21 01:43:17,303 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-21 01:43:17,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-21 01:43:17,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-21 01:43:17,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-21 01:43:17,305 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2020-07-21 01:43:17,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:43:17,305 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-21 01:43:17,305 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-21 01:43:17,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-21 01:43:17,306 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-21 01:43:17,516 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:43:17,520 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-21 01:43:17,594 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.initFINAL(line -1)  the Hoare annotation is:  true
[2020-07-21 01:43:17,594 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-21 01:43:17,594 INFO  L268        CegarLoopResult]: For program point  L27(lines 27 34)  no Hoare annotation was computed.
[2020-07-21 01:43:17,594 INFO  L271        CegarLoopResult]: At program point  L27-2(lines 25 35)  the Hoare annotation is:  true
[2020-07-21 01:43:17,594 INFO  L268        CegarLoopResult]: For program point  L23(line 23)  no Hoare annotation was computed.
[2020-07-21 01:43:17,595 INFO  L268        CegarLoopResult]: For program point  L25-2(lines 14 36)  no Hoare annotation was computed.
[2020-07-21 01:43:17,595 INFO  L264        CegarLoopResult]: At program point  L19-2(line 19)  the Hoare annotation is:  (<= 1 f_~z~0)
[2020-07-21 01:43:17,595 INFO  L264        CegarLoopResult]: At program point  L19-3(line 19)  the Hoare annotation is:  (<= 1 f_~z~0)
[2020-07-21 01:43:17,595 INFO  L268        CegarLoopResult]: For program point  fEXIT(lines 14 36)  no Hoare annotation was computed.
[2020-07-21 01:43:17,596 INFO  L271        CegarLoopResult]: At program point  fENTRY(lines 14 36)  the Hoare annotation is:  true
[2020-07-21 01:43:17,596 INFO  L268        CegarLoopResult]: For program point  L28(lines 28 29)  no Hoare annotation was computed.
[2020-07-21 01:43:17,596 INFO  L268        CegarLoopResult]: For program point  L24(line 24)  no Hoare annotation was computed.
[2020-07-21 01:43:17,596 INFO  L268        CegarLoopResult]: For program point  L20(lines 14 36)  no Hoare annotation was computed.
[2020-07-21 01:43:17,596 INFO  L268        CegarLoopResult]: For program point  L16(lines 16 18)  no Hoare annotation was computed.
[2020-07-21 01:43:17,596 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-21 01:43:17,597 INFO  L271        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2020-07-21 01:43:17,597 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-21 01:43:17,597 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-21 01:43:17,597 INFO  L268        CegarLoopResult]: For program point  assume_abort_if_notENTRY(lines 3 5)  no Hoare annotation was computed.
[2020-07-21 01:43:17,598 INFO  L268        CegarLoopResult]: For program point  L4(line 4)  no Hoare annotation was computed.
[2020-07-21 01:43:17,598 INFO  L268        CegarLoopResult]: For program point  L4-2(lines 3 5)  no Hoare annotation was computed.
[2020-07-21 01:43:17,598 INFO  L268        CegarLoopResult]: For program point  assume_abort_if_notEXIT(lines 3 5)  no Hoare annotation was computed.
[2020-07-21 01:43:17,598 INFO  L271        CegarLoopResult]: At program point  mainENTRY(lines 37 45)  the Hoare annotation is:  true
[2020-07-21 01:43:17,598 INFO  L268        CegarLoopResult]: For program point  mainFINAL(lines 37 45)  no Hoare annotation was computed.
[2020-07-21 01:43:17,598 INFO  L271        CegarLoopResult]: At program point  L42(line 42)  the Hoare annotation is:  true
[2020-07-21 01:43:17,599 INFO  L268        CegarLoopResult]: For program point  L42-1(lines 39 43)  no Hoare annotation was computed.
[2020-07-21 01:43:17,599 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 37 45)  no Hoare annotation was computed.
[2020-07-21 01:43:17,599 INFO  L271        CegarLoopResult]: At program point  L40(line 40)  the Hoare annotation is:  true
[2020-07-21 01:43:17,599 INFO  L268        CegarLoopResult]: For program point  L39(lines 39 43)  no Hoare annotation was computed.
[2020-07-21 01:43:17,599 INFO  L271        CegarLoopResult]: At program point  __VERIFIER_assertENTRY(lines 6 11)  the Hoare annotation is:  true
[2020-07-21 01:43:17,600 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertEXIT(lines 6 11)  no Hoare annotation was computed.
[2020-07-21 01:43:17,600 INFO  L268        CegarLoopResult]: For program point  L8(line 8)  no Hoare annotation was computed.
[2020-07-21 01:43:17,600 INFO  L268        CegarLoopResult]: For program point  L7(lines 7 9)  no Hoare annotation was computed.
[2020-07-21 01:43:17,600 INFO  L268        CegarLoopResult]: For program point  L7-2(lines 6 11)  no Hoare annotation was computed.
[2020-07-21 01:43:17,600 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8)  no Hoare annotation was computed.
[2020-07-21 01:43:17,617 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:43:17 BoogieIcfgContainer
[2020-07-21 01:43:17,617 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 01:43:17,621 INFO  L168              Benchmark]: Toolchain (without parser) took 1875.47 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 104.8 MB in the beginning and 123.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,622 INFO  L168              Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,623 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 296.92 ms. Allocated memory is still 139.5 MB. Free memory was 104.3 MB in the beginning and 94.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,624 INFO  L168              Benchmark]: Boogie Preprocessor took 122.56 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 94.2 MB in the beginning and 180.6 MB in the end (delta: -86.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,625 INFO  L168              Benchmark]: RCFGBuilder took 365.46 ms. Allocated memory is still 201.3 MB. Free memory was 180.6 MB in the beginning and 165.6 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,626 INFO  L168              Benchmark]: TraceAbstraction took 1085.02 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 123.9 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 7.1 GB.
[2020-07-21 01:43:17,630 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 296.92 ms. Allocated memory is still 139.5 MB. Free memory was 104.3 MB in the beginning and 94.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 122.56 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 94.2 MB in the beginning and 180.6 MB in the end (delta: -86.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 365.46 ms. Allocated memory is still 201.3 MB. Free memory was 180.6 MB in the beginning and 165.6 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1085.02 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 123.9 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 25]: Loop Invariant
    Derived loop invariant: 1
  - InvariantResult [Line: 19]: Loop Invariant
    Derived loop invariant: 1 <= z
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 1 SDslu, 33 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 20 NumberOfFragments, 15 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 2 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...