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_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:23,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:23,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:23,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:23:23,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:23:23,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:23:23,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:23:23,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:23:23,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:23:23,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:23:23,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:23:23,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:23:23,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:23:23,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:23:23,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:23:23,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:23:23,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:23:23,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:23:23,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:23:23,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:23:23,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:23:23,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:23:23,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:23:23,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:23:23,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:23:23,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:23,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:23,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:23,726 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 01:23:23,741 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:23,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:23,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:23,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:23,742 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:23,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:23,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:23,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:23,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:23,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:23,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:23,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:23,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:23,744 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:23,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:23,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:23,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:23,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:23,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:23,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:23,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:23,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:23,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:23,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:23,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:23,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:23,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:23,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:23,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:23,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:23,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:23,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:23,809 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:23,809 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:23,810 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2019-09-08 01:23:23,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847938f00/6e841f5548274a18a9699f1ef291b1d3/FLAG45b24a320 [2019-09-08 01:23:24,386 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:24,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072a.c [2019-09-08 01:23:24,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847938f00/6e841f5548274a18a9699f1ef291b1d3/FLAG45b24a320 [2019-09-08 01:23:24,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847938f00/6e841f5548274a18a9699f1ef291b1d3 [2019-09-08 01:23:24,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:24,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:24,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:24,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:24,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:24,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b575677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24, skipping insertion in model container [2019-09-08 01:23:24,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:24,825 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:25,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:25,042 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:25,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:25,186 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:25,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25 WrapperNode [2019-09-08 01:23:25,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:25,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:25,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:25,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:25,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (1/1) ... [2019-09-08 01:23:25,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:25,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:25,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:25,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:25,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (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 01:23:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2019-09-08 01:23:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2019-09-08 01:23:25,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2019-09-08 01:23:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2019-09-08 01:23:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:25,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:25,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:25,585 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:25,585 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-08 01:23:25,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:25 BoogieIcfgContainer [2019-09-08 01:23:25,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:25,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:25,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:25,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:25,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:24" (1/3) ... [2019-09-08 01:23:25,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a206322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:25, skipping insertion in model container [2019-09-08 01:23:25,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:25" (2/3) ... [2019-09-08 01:23:25,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a206322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:25, skipping insertion in model container [2019-09-08 01:23:25,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:25" (3/3) ... [2019-09-08 01:23:25,597 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a.c [2019-09-08 01:23:25,609 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:25,618 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:23:25,637 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:23:25,670 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:25,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:25,671 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:25,671 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:25,671 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:25,671 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:25,672 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:25,672 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:25,672 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:25,690 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-09-08 01:23:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 01:23:25,698 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:25,699 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] [2019-09-08 01:23:25,701 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:25,707 INFO L82 PathProgramCache]: Analyzing trace with hash -456969478, now seen corresponding path program 1 times [2019-09-08 01:23:25,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:25,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:25,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:25,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:25,888 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 01:23:25,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:25,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:25,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:25,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:25,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:25,913 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-09-08 01:23:25,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:25,939 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2019-09-08 01:23:25,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:25,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-08 01:23:25,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:25,950 INFO L225 Difference]: With dead ends: 66 [2019-09-08 01:23:25,950 INFO L226 Difference]: Without dead ends: 33 [2019-09-08 01:23:25,954 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 01:23:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-08 01:23:25,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-09-08 01:23:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-09-08 01:23:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2019-09-08 01:23:26,000 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2019-09-08 01:23:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:26,000 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2019-09-08 01:23:26,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2019-09-08 01:23:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 01:23:26,002 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:26,002 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 01:23:26,002 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1810155496, now seen corresponding path program 1 times [2019-09-08 01:23:26,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:26,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:26,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:26,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:26,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:26,300 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:26,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:26 BoogieIcfgContainer [2019-09-08 01:23:26,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:26,332 INFO L168 Benchmark]: Toolchain (without parser) took 1548.68 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 87.4 MB in the beginning and 127.7 MB in the end (delta: -40.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,333 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 132.1 MB. Free memory was 106.6 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.80 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 87.2 MB in the beginning and 176.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,335 INFO L168 Benchmark]: Boogie Preprocessor took 54.49 ms. Allocated memory is still 200.3 MB. Free memory was 176.6 MB in the beginning and 174.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,336 INFO L168 Benchmark]: RCFGBuilder took 346.16 ms. Allocated memory is still 200.3 MB. Free memory was 174.2 MB in the beginning and 155.8 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,337 INFO L168 Benchmark]: TraceAbstraction took 740.65 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 127.7 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:26,341 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 132.1 MB. Free memory was 106.6 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 402.80 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 87.2 MB in the beginning and 176.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.49 ms. Allocated memory is still 200.3 MB. Free memory was 176.6 MB in the beginning and 174.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.16 ms. Allocated memory is still 200.3 MB. Free memory was 174.2 MB in the beginning and 155.8 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 740.65 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 127.7 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L62] float x = 1.0f / 0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=4294967304] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=4294967304, x=4294967304] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967304, exponent_less_127=255, signbit=1, w=2, x=4294967304] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=4294967304, exponent_less_127=255, signbit=1, w=2, x=4294967304] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=4294967304, exponent_less_127=255, signbit=1, w=2, x=4294967304] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=4294967299, x=4294967304] [L63] float res = trunc_float(x); [L66] CALL, EXPR isinf_float(res) VAL [\old(x)=4294967299] [L45] __int32_t ix; VAL [\old(x)=4294967299, x=4294967299] [L47] ieee_float_shape_type gf_u; [L48] gf_u.value = (x) [L49] EXPR gf_u.word [L49] (ix) = gf_u.word [L51] ix &= 0x7fffffff [L52] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967299, \result=0, ix=0, x=4294967299] [L66] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=4294967299, x=4294967304] [L66] COND TRUE !isinf_float(res) [L67] __VERIFIER_error() VAL [res=4294967299, x=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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...