java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:14,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:14,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:14,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:23:14,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:23:14,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:23:14,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:23:14,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:23:14,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:23:14,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:23:14,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:23:14,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:23:14,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:23:14,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:23:14,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:23:14,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:23:14,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:23:14,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:23:14,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:23:14,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:23:14,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:23:14,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:23:14,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:23:14,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:23:14,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:23:14,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:14,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:14,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:14,752 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:23:14,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:14,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:14,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:14,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:14,782 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:14,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:14,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:14,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:14,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:14,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:14,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:14,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:14,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:14,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:14,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:14,789 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:14,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:14,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:14,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:14,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:14,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:14,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:14,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:14,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:14,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:14,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:14,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:14,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:14,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:14,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:14,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:14,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:14,869 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:14,870 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:14,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012a.c [2019-09-08 01:23:14,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c074e88/87675696a9e8437faa899c16893cff04/FLAG239355ea3 [2019-09-08 01:23:15,346 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:15,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1012a.c [2019-09-08 01:23:15,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c074e88/87675696a9e8437faa899c16893cff04/FLAG239355ea3 [2019-09-08 01:23:15,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c074e88/87675696a9e8437faa899c16893cff04 [2019-09-08 01:23:15,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:15,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:15,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:15,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:15,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:15,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:15" (1/1) ... [2019-09-08 01:23:15,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122e0d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:15, skipping insertion in model container [2019-09-08 01:23:15,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:15" (1/1) ... [2019-09-08 01:23:15,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:15,788 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:15,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:15,963 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:15,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:16,080 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:16,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16 WrapperNode [2019-09-08 01:23:16,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:16,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:16,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:16,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:16,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (1/1) ... [2019-09-08 01:23:16,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:16,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:16,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:16,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:16,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (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 [2019-09-08 01:23:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2019-09-08 01:23:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2019-09-08 01:23:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2019-09-08 01:23:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:16,495 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:16,495 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 01:23:16,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:16 BoogieIcfgContainer [2019-09-08 01:23:16,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:16,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:16,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:16,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:16,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:15" (1/3) ... [2019-09-08 01:23:16,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3875ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:16, skipping insertion in model container [2019-09-08 01:23:16,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:16" (2/3) ... [2019-09-08 01:23:16,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3875ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:16, skipping insertion in model container [2019-09-08 01:23:16,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:16" (3/3) ... [2019-09-08 01:23:16,503 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2019-09-08 01:23:16,512 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:16,519 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:23:16,535 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:23:16,565 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:16,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:16,566 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:16,566 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:16,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:16,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:16,567 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:16,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:16,567 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-08 01:23:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-08 01:23:16,591 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:16,592 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:23:16,594 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1978899259, now seen corresponding path program 1 times [2019-09-08 01:23:16,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:16,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:16,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:16,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:16,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:23:16,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:16,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:16,735 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:16,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:16,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:16,753 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-08 01:23:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:16,786 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2019-09-08 01:23:16,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:16,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-09-08 01:23:16,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:16,800 INFO L225 Difference]: With dead ends: 54 [2019-09-08 01:23:16,801 INFO L226 Difference]: Without dead ends: 27 [2019-09-08 01:23:16,808 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:16,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-08 01:23:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-09-08 01:23:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-08 01:23:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2019-09-08 01:23:16,871 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2019-09-08 01:23:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:16,872 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2019-09-08 01:23:16,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2019-09-08 01:23:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 01:23:16,876 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:16,876 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:23:16,876 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:16,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:16,877 INFO L82 PathProgramCache]: Analyzing trace with hash 749195959, now seen corresponding path program 1 times [2019-09-08 01:23:16,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:16,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:16,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:16,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:16,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:17,098 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:17,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:17 BoogieIcfgContainer [2019-09-08 01:23:17,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:17,131 INFO L168 Benchmark]: Toolchain (without parser) took 1372.07 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.4 MB in the beginning and 132.3 MB in the end (delta: -41.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,132 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.94 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.2 MB in the beginning and 177.7 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,134 INFO L168 Benchmark]: Boogie Preprocessor took 42.17 ms. Allocated memory is still 200.8 MB. Free memory was 177.7 MB in the beginning and 175.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,135 INFO L168 Benchmark]: RCFGBuilder took 373.24 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 159.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,136 INFO L168 Benchmark]: TraceAbstraction took 630.96 ms. Allocated memory is still 200.8 MB. Free memory was 158.9 MB in the beginning and 132.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:17,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.94 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.2 MB in the beginning and 177.7 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.17 ms. Allocated memory is still 200.8 MB. Free memory was 177.7 MB in the beginning and 175.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 373.24 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 159.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 630.96 ms. Allocated memory is still 200.8 MB. Free memory was 158.9 MB in the beginning and 132.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = 1.0f / 0.0f; [L47] CALL, EXPR fabs_float(x) VAL [\old(x)=4294967302] [L12] __uint32_t ix; VAL [\old(x)=4294967302, x=4294967302] [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (ix) = gf_u.word [L19] ieee_float_shape_type sf_u; [L20] sf_u.word = (ix & 0x7fffffff) [L21] EXPR sf_u.value [L21] (x) = sf_u.value [L23] return x; VAL [\old(x)=4294967302, \result=4294967295, ix=5, x=4294967295] [L47] RET, EXPR fabs_float(x) VAL [fabs_float(x)=4294967295, x=4294967302] [L47] float res = fabs_float(x); [L50] CALL, EXPR isinf_float(res) VAL [\old(x)=4294967295] [L28] __int32_t ix; VAL [\old(x)=4294967295, x=4294967295] [L30] ieee_float_shape_type gf_u; [L31] gf_u.value = (x) [L32] EXPR gf_u.word [L32] (ix) = gf_u.word [L34] ix &= 0x7fffffff [L35] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967295, \result=0, ix=0, x=4294967295] [L50] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=4294967295, x=4294967302] [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() VAL [res=4294967295, x=4294967302] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...