/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 DAGSIZE --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/float-newlib/double_req_bl_1231b.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 21:07:32,317 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 21:07:32,320 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 21:07:32,338 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 21:07:32,338 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 21:07:32,340 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 21:07:32,342 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 21:07:32,357 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 21:07:32,359 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 21:07:32,361 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 21:07:32,362 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 21:07:32,363 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 21:07:32,363 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 21:07:32,366 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 21:07:32,368 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 21:07:32,370 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 21:07:32,372 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 21:07:32,375 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 21:07:32,377 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 21:07:32,383 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 21:07:32,386 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 21:07:32,389 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 21:07:32,392 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 21:07:32,394 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 21:07:32,397 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 21:07:32,397 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 21:07:32,397 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 21:07:32,400 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 21:07:32,400 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 21:07:32,401 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 21:07:32,402 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 21:07:32,403 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 21:07:32,404 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 21:07:32,405 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 21:07:32,406 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 21:07:32,406 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 21:07:32,407 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 21:07:32,407 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 21:07:32,407 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 21:07:32,410 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 21:07:32,410 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
[2020-07-20 21:07:32,437 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 21:07:32,438 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 21:07:32,439 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 21:07:32,439 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 21:07:32,439 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 21:07:32,440 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 21:07:32,440 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 21:07:32,440 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 21:07:32,440 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 21:07:32,441 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 21:07:32,441 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 21:07:32,441 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 21:07:32,441 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 21:07:32,441 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 21:07:32,442 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 21:07:32,442 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 21:07:32,442 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 21:07:32,442 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 21:07:32,442 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 21:07:32,443 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 21:07:32,443 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 21:07:32,443 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 21:07:32,443 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 21:07:32,444 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 21:07:32,445 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 -> DAGSIZE
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
[2020-07-20 21:07:32,766 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 21:07:32,779 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 21:07:32,783 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 21:07:32,784 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 21:07:32,785 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 21:07:32,785 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c
[2020-07-20 21:07:32,844 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2492a2c/0c475691c49646db8a8910bd20dbe2a3/FLAG05c0f39c8
[2020-07-20 21:07:33,311 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 21:07:33,312 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c
[2020-07-20 21:07:33,318 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2492a2c/0c475691c49646db8a8910bd20dbe2a3/FLAG05c0f39c8
[2020-07-20 21:07:33,671 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2492a2c/0c475691c49646db8a8910bd20dbe2a3
[2020-07-20 21:07:33,680 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 21:07:33,683 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 21:07:33,684 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 21:07:33,684 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 21:07:33,688 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 21:07:33,689 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:33,692 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9e79da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33, skipping insertion in model container
[2020-07-20 21:07:33,692 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:33,700 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 21:07:33,719 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 21:07:33,925 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 21:07:33,930 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 21:07:33,964 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 21:07:33,994 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 21:07:33,994 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33 WrapperNode
[2020-07-20 21:07:33,995 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 21:07:33,996 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 21:07:33,996 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 21:07:33,996 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 21:07:34,111 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,111 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,122 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,122 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,133 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,138 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,140 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (1/1) ...
[2020-07-20 21:07:34,143 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 21:07:34,144 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 21:07:34,144 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 21:07:34,144 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 21:07:34,145 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (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
[2020-07-20 21:07:34,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 21:07:34,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 21:07:34,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-07-20 21:07:34,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure __fpclassify_double
[2020-07-20 21:07:34,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure fmin_double
[2020-07-20 21:07:34,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 21:07:34,218 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 21:07:34,218 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2020-07-20 21:07:34,219 INFO  L130     BoogieDeclarations]: Found specification of procedure isnan_double
[2020-07-20 21:07:34,219 INFO  L130     BoogieDeclarations]: Found specification of procedure __fpclassify_double
[2020-07-20 21:07:34,220 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-20 21:07:34,220 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real
[2020-07-20 21:07:34,220 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 21:07:34,220 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 21:07:34,220 INFO  L130     BoogieDeclarations]: Found specification of procedure fmin_double
[2020-07-20 21:07:34,221 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 21:07:34,221 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 21:07:34,221 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 21:07:34,222 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 21:07:34,222 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real
[2020-07-20 21:07:34,571 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 21:07:34,572 INFO  L295             CfgBuilder]: Removed 2 assume(true) statements.
[2020-07-20 21:07:34,576 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:07:34 BoogieIcfgContainer
[2020-07-20 21:07:34,576 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 21:07:34,577 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 21:07:34,577 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 21:07:34,580 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 21:07:34,581 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:07:33" (1/3) ...
[2020-07-20 21:07:34,581 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e12cb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:07:34, skipping insertion in model container
[2020-07-20 21:07:34,581 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:07:33" (2/3) ...
[2020-07-20 21:07:34,582 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e12cb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:07:34, skipping insertion in model container
[2020-07-20 21:07:34,582 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:07:34" (3/3) ...
[2020-07-20 21:07:34,584 INFO  L109   eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c
[2020-07-20 21:07:34,595 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 21:07:34,602 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 21:07:34,618 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 21:07:34,641 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 21:07:34,641 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 21:07:34,642 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 21:07:34,642 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 21:07:34,642 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 21:07:34,642 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 21:07:34,642 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 21:07:34,642 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 21:07:34,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states.
[2020-07-20 21:07:34,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-07-20 21:07:34,670 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:07:34,671 INFO  L422         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]
[2020-07-20 21:07:34,671 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:07:34,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:07:34,677 INFO  L82        PathProgramCache]: Analyzing trace with hash 969227935, now seen corresponding path program 1 times
[2020-07-20 21:07:34,687 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:07:34,687 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583295750]
[2020-07-20 21:07:34,688 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
[2020-07-20 21:07:34,798 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 21:07:34,799 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:07:34,802 INFO  L263         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core
[2020-07-20 21:07:34,809 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:07:34,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:07:34,883 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:07:34,884 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583295750]
[2020-07-20 21:07:34,885 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:07:34,886 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-20 21:07:34,887 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838132061]
[2020-07-20 21:07:34,892 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-20 21:07:34,893 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:07:34,910 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-20 21:07:34,911 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 21:07:34,913 INFO  L87              Difference]: Start difference. First operand 42 states. Second operand 4 states.
[2020-07-20 21:07:34,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:07:34,977 INFO  L93              Difference]: Finished difference Result 73 states and 97 transitions.
[2020-07-20 21:07:34,978 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-20 21:07:34,979 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 27
[2020-07-20 21:07:34,980 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:07:34,991 INFO  L225             Difference]: With dead ends: 73
[2020-07-20 21:07:34,991 INFO  L226             Difference]: Without dead ends: 41
[2020-07-20 21:07:34,995 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 21:07:35,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2020-07-20 21:07:35,042 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2020-07-20 21:07:35,043 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2020-07-20 21:07:35,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions.
[2020-07-20 21:07:35,047 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 27
[2020-07-20 21:07:35,048 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:07:35,048 INFO  L479      AbstractCegarLoop]: Abstraction has 41 states and 49 transitions.
[2020-07-20 21:07:35,048 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-20 21:07:35,048 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions.
[2020-07-20 21:07:35,051 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-07-20 21:07:35,051 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:07:35,051 INFO  L422         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]
[2020-07-20 21:07:35,266 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:07:35,266 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:07:35,267 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:07:35,268 INFO  L82        PathProgramCache]: Analyzing trace with hash 151786008, now seen corresponding path program 1 times
[2020-07-20 21:07:35,268 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:07:35,269 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397263709]
[2020-07-20 21:07:35,270 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
[2020-07-20 21:07:35,378 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 21:07:35,379 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:07:35,380 INFO  L263         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core
[2020-07-20 21:07:35,385 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:07:35,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:07:35,406 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:07:35,406 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397263709]
[2020-07-20 21:07:35,407 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:07:35,407 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-20 21:07:35,407 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297161237]
[2020-07-20 21:07:35,409 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-20 21:07:35,409 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:07:35,409 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-20 21:07:35,410 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 21:07:35,410 INFO  L87              Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 4 states.
[2020-07-20 21:07:35,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:07:35,434 INFO  L93              Difference]: Finished difference Result 51 states and 60 transitions.
[2020-07-20 21:07:35,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-20 21:07:35,435 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 31
[2020-07-20 21:07:35,435 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:07:35,437 INFO  L225             Difference]: With dead ends: 51
[2020-07-20 21:07:35,437 INFO  L226             Difference]: Without dead ends: 45
[2020-07-20 21:07:35,438 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 21:07:35,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-07-20 21:07:35,446 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41.
[2020-07-20 21:07:35,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2020-07-20 21:07:35,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions.
[2020-07-20 21:07:35,449 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31
[2020-07-20 21:07:35,449 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:07:35,449 INFO  L479      AbstractCegarLoop]: Abstraction has 41 states and 49 transitions.
[2020-07-20 21:07:35,449 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-20 21:07:35,449 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions.
[2020-07-20 21:07:35,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-07-20 21:07:35,451 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:07:35,451 INFO  L422         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]
[2020-07-20 21:07:35,665 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:07:35,666 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:07:35,667 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:07:35,667 INFO  L82        PathProgramCache]: Analyzing trace with hash -44727497, now seen corresponding path program 1 times
[2020-07-20 21:07:35,668 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:07:35,668 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114623831]
[2020-07-20 21:07:35,669 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:07:35,739 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:07:35,740 INFO  L229   tOrderPrioritization]: Conjunction of SSA is sat
[2020-07-20 21:07:35,740 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 21:07:35,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-20 21:07:35,775 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 21:07:35,829 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-20 21:07:35,831 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-07-20 21:07:36,049 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:07:36,083 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 09:07:36 BoogieIcfgContainer
[2020-07-20 21:07:36,083 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 21:07:36,086 INFO  L168              Benchmark]: Toolchain (without parser) took 2403.50 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 93.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,087 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,088 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 311.12 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 89.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,089 INFO  L168              Benchmark]: Boogie Preprocessor took 147.92 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 89.8 MB in the beginning and 179.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,090 INFO  L168              Benchmark]: RCFGBuilder took 432.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 160.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,091 INFO  L168              Benchmark]: TraceAbstraction took 1506.02 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 93.4 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB.
[2020-07-20 21:07:36,095 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 311.12 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 89.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 147.92 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 89.8 MB in the beginning and 179.8 MB in the end (delta: -90.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 432.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 160.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1506.02 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 93.4 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - UnprovableResult [Line: 68]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. 
Possible FailurePath: 
[L60]                  double x = __VERIFIER_nondet_double();
[L61]                  double y = 0.0 / 0.0;
           VAL         [x=3]
[L62]      CALL, EXPR  isnan_double(x)
           VAL         [\old(x)=3]
[L16]                  return x != x;
           VAL         [\old(x)=3, \result=0, x=3]
[L62]      RET, EXPR   isnan_double(x)
           VAL         [isnan_double(x)=0, x=3]
[L62]      COND TRUE   !isnan_double(x)
[L64]      CALL, EXPR  fmin_double(x, y)
           VAL         [\old(x)=3, \old(y)=4]
[L45]      CALL, EXPR  __fpclassify_double(x)
           VAL         [\old(x)=3]
[L18]                  __uint32_t msw, lsw;
           VAL         [\old(x)=3, x=3]
[L21]                  ieee_double_shape_type ew_u;
[L22]                  ew_u.value = (x)
[L23]      EXPR        ew_u.parts.msw
[L23]                  (msw) = ew_u.parts.msw
[L24]      EXPR        ew_u.parts.lsw
[L24]                  (lsw) = ew_u.parts.lsw
[L27-L28]  COND FALSE  !((msw == 0x00000000 && lsw == 0x00000000) ||
      (msw == 0x80000000 && lsw == 0x00000000))
           VAL         [\old(x)=3, lsw=2437, msw=6441402369, x=3]
[L30-L31]  COND FALSE  !((msw >= 0x00100000 && msw <= 0x7fefffff) ||
           (msw >= 0x80100000 && msw <= 0xffefffff))
           VAL         [\old(x)=3, lsw=2437, msw=6441402369, x=3]
[L33-L34]  COND FALSE  !(( msw <= 0x000fffff) ||
           (msw >= 0x80000000 && msw <= 0x800fffff))
           VAL         [\old(x)=3, lsw=2437, msw=6441402369, x=3]
[L37-L38]  COND FALSE  !((msw == 0x7ff00000 && lsw == 0x00000000) ||
           (msw == 0xfff00000 && lsw == 0x00000000))
[L41]                  return 0;
           VAL         [\old(x)=3, \result=0, lsw=2437, msw=6441402369, x=3]
[L45]      RET, EXPR   __fpclassify_double(x)
           VAL         [\old(x)=3, \old(y)=4, __fpclassify_double(x)=0, x=3, y=4]
[L45]      COND TRUE   __fpclassify_double(x) == 0
[L46]                  return y;
           VAL         [\old(x)=3, \old(y)=4, \result=4, x=3, y=4]
[L64]      RET, EXPR   fmin_double(x, y)
           VAL         [fmin_double(x, y)=4, x=3, y=4]
[L64]                  double res = fmin_double(x, y);
[L67]      COND TRUE   res != x
           VAL         [res=4, x=3, y=4]
[L68]                  __VERIFIER_error()
           VAL         [res=4, x=3, y=4]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 168 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 89 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 6 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 could not prove your program: unable to determine feasibility of some traces
Received shutdown request...