/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/float-benchs/float_double.c
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This is Ultimate 0.1.25-d623d84
[2020-07-21 00:30:28,391 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-21 00:30:28,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 00:30:28,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 00:30:28,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 00:30:28,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 00:30:28,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 00:30:28,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 00:30:28,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 00:30:28,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 00:30:28,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 00:30:28,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 00:30:28,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 00:30:28,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 00:30:28,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 00:30:28,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 00:30:28,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 00:30:28,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 00:30:28,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 00:30:28,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 00:30:28,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 00:30:28,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 00:30:28,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 00:30:28,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 00:30:28,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 00:30:28,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 00:30:28,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 00:30:28,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 00:30:28,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 00:30:28,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 00:30:28,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 00:30:28,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 00:30:28,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-21 00:30:28,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-21 00:30:28,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 00:30:28,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 00:30:28,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-21 00:30:28,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-21 00:30:28,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-21 00:30:28,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-21 00:30:28,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 00:30:28,481 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 00:30:28,516 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-21 00:30:28,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 00:30:28,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 00:30:28,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-21 00:30:28,523 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-21 00:30:28,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 00:30:28,523 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-21 00:30:28,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 00:30:28,524 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-21 00:30:28,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-21 00:30:28,525 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-21 00:30:28,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-21 00:30:28,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 00:30:28,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-21 00:30:28,527 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-21 00:30:28,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-21 00:30:28,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 00:30:28,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 00:30:28,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 00:30:28,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 00:30:28,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-21 00:30:28,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 00:30:28,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 00:30:28,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-21 00:30:28,529 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 00:30:28,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 00:30:28,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 00:30:28,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 00:30:28,865 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-21 00:30:28,865 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-21 00:30:28,866 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/float_double.c
[2020-07-21 00:30:28,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc2cf03d/e149c12dd83e4826b27070301153ab20/FLAG09407d4dd
[2020-07-21 00:30:29,392 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-21 00:30:29,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/float_double.c
[2020-07-21 00:30:29,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc2cf03d/e149c12dd83e4826b27070301153ab20/FLAG09407d4dd
[2020-07-21 00:30:29,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc2cf03d/e149c12dd83e4826b27070301153ab20
[2020-07-21 00:30:29,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 00:30:29,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 00:30:29,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 00:30:29,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 00:30:29,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 00:30:29,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:29" (1/1) ...
[2020-07-21 00:30:29,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27edf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:29, skipping insertion in model container
[2020-07-21 00:30:29,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:29" (1/1) ...
[2020-07-21 00:30:29,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-21 00:30:29,810 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-21 00:30:30,044 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 00:30:30,051 INFO L203 MainTranslator]: Completed pre-run
[2020-07-21 00:30:30,068 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 00:30:30,084 INFO L208 MainTranslator]: Completed translation
[2020-07-21 00:30:30,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30 WrapperNode
[2020-07-21 00:30:30,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 00:30:30,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 00:30:30,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 00:30:30,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 00:30:30,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (1/1) ...
[2020-07-21 00:30:30,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 00:30:30,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 00:30:30,213 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 00:30:30,213 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-21 00:30:30,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (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 00:30:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 00:30:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 00:30:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-21 00:30:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 00:30:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 00:30:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-21 00:30:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-21 00:30:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 00:30:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 00:30:30,449 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 00:30:30,449 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-07-21 00:30:30,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:30 BoogieIcfgContainer
[2020-07-21 00:30:30,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 00:30:30,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 00:30:30,454 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 00:30:30,457 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-21 00:30:30,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:30:29" (1/3) ...
[2020-07-21 00:30:30,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2a364a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:30, skipping insertion in model container
[2020-07-21 00:30:30,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:30" (2/3) ...
[2020-07-21 00:30:30,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2a364a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:30, skipping insertion in model container
[2020-07-21 00:30:30,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:30" (3/3) ...
[2020-07-21 00:30:30,461 INFO L109 eAbstractionObserver]: Analyzing ICFG float_double.c
[2020-07-21 00:30:30,471 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 00:30:30,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 00:30:30,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 00:30:30,513 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-21 00:30:30,514 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-21 00:30:30,514 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 00:30:30,514 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 00:30:30,514 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 00:30:30,514 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-21 00:30:30,514 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 00:30:30,515 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 00:30:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states.
[2020-07-21 00:30:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-07-21 00:30:30,536 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 00:30:30,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 00:30:30,537 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 00:30:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 00:30:30,542 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times
[2020-07-21 00:30:30,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 00:30:30,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428385893]
[2020-07-21 00:30:30,549 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 00:30:30,610 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-21 00:30:30,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat
[2020-07-21 00:30:30,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 00:30:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-21 00:30:30,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 00:30:30,634 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-21 00:30:30,635 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-07-21 00:30:30,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 00:30:30,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:30:30 BoogieIcfgContainer
[2020-07-21 00:30:30,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 00:30:30,878 INFO L168 Benchmark]: Toolchain (without parser) took 1100.55 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 104.9 MB in the beginning and 158.2 MB in the end (delta: -53.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,880 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.50 ms. Allocated memory is still 147.3 MB. Free memory was 104.5 MB in the beginning and 95.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,882 INFO L168 Benchmark]: Boogie Preprocessor took 126.42 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 95.3 MB in the beginning and 182.6 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,883 INFO L168 Benchmark]: RCFGBuilder took 240.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 171.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,884 INFO L168 Benchmark]: TraceAbstraction took 421.46 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 158.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:30,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.61 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 305.50 ms. Allocated memory is still 147.3 MB. Free memory was 104.5 MB in the beginning and 95.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 126.42 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 95.3 MB in the beginning and 182.6 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 240.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 171.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 421.46 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 158.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8.
Possible FailurePath:
[L8] double x = 1e20 + 1.;
[L9] float y = x;
VAL [x=0, y=0]
[L10] CALL __VERIFIER_assert(x != y)
VAL [\old(cond)=0]
[L4] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L4] __VERIFIER_error()
VAL [\old(cond)=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...