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_0686b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:22:38,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:22:38,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:22:38,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:22:38,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:22:38,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:22:38,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:22:38,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:22:38,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:22:38,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:22:38,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:22:38,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:22:38,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:22:38,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:22:38,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:22:38,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:22:38,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:22:38,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:22:38,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:22:38,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:22:38,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:22:38,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:22:38,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:22:38,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:22:38,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:22:38,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:22:38,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:22:38,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:22:38,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:22:38,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:22:38,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:22:38,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:22:38,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:22:38,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:22:38,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:22:38,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:22:38,593 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 01:22:38,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:22:38,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:22:38,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:22:38,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:22:38,616 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:22:38,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:22:38,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:22:38,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:22:38,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:22:38,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:22:38,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:22:38,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:22:38,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:22:38,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:22:38,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:22:38,618 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:22:38,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:22:38,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:22:38,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:22:38,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:22:38,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:22:38,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:22:38,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:22:38,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:22:38,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:22:38,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:22:38,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:22:38,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:22:38,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:22:38,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:22:38,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:22:38,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:22:38,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:22:38,667 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:22:38,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0686b.c [2019-09-08 01:22:38,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff0859d/6dc9f3590dee49d69e3243213ce126a3/FLAG0f0d7a010 [2019-09-08 01:22:39,244 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:22:39,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0686b.c [2019-09-08 01:22:39,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff0859d/6dc9f3590dee49d69e3243213ce126a3/FLAG0f0d7a010 [2019-09-08 01:22:39,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff0859d/6dc9f3590dee49d69e3243213ce126a3 [2019-09-08 01:22:39,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:22:39,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:22:39,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:22:39,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:22:39,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:22:39,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:39,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702d800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39, skipping insertion in model container [2019-09-08 01:22:39,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:39,540 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:22:39,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:22:39,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:22:39,890 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:22:39,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:22:39,984 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:22:39,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39 WrapperNode [2019-09-08 01:22:39,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:22:39,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:22:39,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:22:39,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:22:39,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:39,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (1/1) ... [2019-09-08 01:22:40,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:22:40,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:22:40,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:22:40,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:22:40,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (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 01:22:40,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:22:40,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:22:40,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2019-09-08 01:22:40,117 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2019-09-08 01:22:40,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2019-09-08 01:22:40,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:22:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:22:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:22:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:22:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:22:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:22:40,713 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:22:40,713 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-08 01:22:40,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:22:40 BoogieIcfgContainer [2019-09-08 01:22:40,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:22:40,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:22:40,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:22:40,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:22:40,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:22:39" (1/3) ... [2019-09-08 01:22:40,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e92a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:22:40, skipping insertion in model container [2019-09-08 01:22:40,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:39" (2/3) ... [2019-09-08 01:22:40,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e92a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:22:40, skipping insertion in model container [2019-09-08 01:22:40,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:22:40" (3/3) ... [2019-09-08 01:22:40,723 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0686b.c [2019-09-08 01:22:40,733 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:22:40,740 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:22:40,757 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:22:40,786 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:22:40,787 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:22:40,787 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:22:40,787 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:22:40,787 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:22:40,787 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:22:40,788 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:22:40,788 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:22:40,788 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:22:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2019-09-08 01:22:40,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-08 01:22:40,813 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:22:40,814 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:22:40,816 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:22:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:22:40,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1988302874, now seen corresponding path program 1 times [2019-09-08 01:22:40,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:22:40,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:22:40,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:40,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:22:40,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:22:41,001 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 01:22:41,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:22:41,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:22:41,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:22:41,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:22:41,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:22:41,024 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 2 states. [2019-09-08 01:22:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:22:41,099 INFO L93 Difference]: Finished difference Result 190 states and 302 transitions. [2019-09-08 01:22:41,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:22:41,100 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-08 01:22:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:22:41,119 INFO L225 Difference]: With dead ends: 190 [2019-09-08 01:22:41,120 INFO L226 Difference]: Without dead ends: 95 [2019-09-08 01:22:41,130 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 01:22:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-08 01:22:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-08 01:22:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-08 01:22:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2019-09-08 01:22:41,214 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 18 [2019-09-08 01:22:41,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:22:41,216 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2019-09-08 01:22:41,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:22:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2019-09-08 01:22:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:22:41,218 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:22:41,218 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] [2019-09-08 01:22:41,219 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:22:41,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:22:41,220 INFO L82 PathProgramCache]: Analyzing trace with hash -796728189, now seen corresponding path program 1 times [2019-09-08 01:22:41,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:22:41,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:22:41,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:41,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:22:41,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:22:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:22:41,491 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:22:41,530 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967309 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:41,531 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967318 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:41,531 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967322 could not be translated for associated CType ARRAY#_11_~FLOAT# [2019-09-08 01:22:41,531 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967316 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:41,532 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967305 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:41,532 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967313 could not be translated for associated CType ARRAY#_11_~FLOAT# [2019-09-08 01:22:41,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:22:41 BoogieIcfgContainer [2019-09-08 01:22:41,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:22:41,556 INFO L168 Benchmark]: Toolchain (without parser) took 2029.50 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 88.7 MB in the beginning and 93.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:41,558 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 141.0 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:22:41,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.81 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 88.3 MB in the beginning and 174.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:41,560 INFO L168 Benchmark]: Boogie Preprocessor took 80.32 ms. Allocated memory is still 201.3 MB. Free memory was 174.9 MB in the beginning and 172.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:41,563 INFO L168 Benchmark]: RCFGBuilder took 648.64 ms. Allocated memory is still 201.3 MB. Free memory was 171.3 MB in the beginning and 133.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:41,564 INFO L168 Benchmark]: TraceAbstraction took 835.97 ms. Allocated memory is still 201.3 MB. Free memory was 133.6 MB in the beginning and 93.5 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:41,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 141.0 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 458.81 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 88.3 MB in the beginning and 174.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.32 ms. Allocated memory is still 201.3 MB. Free memory was 174.9 MB in the beginning and 172.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 648.64 ms. Allocated memory is still 201.3 MB. Free memory was 171.3 MB in the beginning and 133.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 835.97 ms. Allocated memory is still 201.3 MB. Free memory was 133.6 MB in the beginning and 93.5 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967309 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967318 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967322 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967316 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967305 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967313 could not be translated for associated CType ARRAY#_11_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 229]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 228, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticFLOAToperation at line 135. Possible FailurePath: [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L47-L49] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L115-L116] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=4294967311, \old(one_atan)=4294967300, \old(pi)=4294967307, \old(pi_lo_atan2)=4294967321, \old(pi_o_2)=4294967301, \old(pi_o_4)=4294967304, \old(tiny_atan2)=4294967314, \old(zero_atan2)=4294967312, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L222] float x = 1.0f / 0.0f; [L223] float y = -1.0f / 0.0f; VAL [aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L225] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=4294967317, \old(y)=4294967320, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L119] float z; [L120] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=4294967317, \old(y)=4294967320, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [\old(x)=4294967317, \old(y)=4294967320, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, hx=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L129] ieee_float_shape_type gf_u; [L130] gf_u.value = (y) [L131] EXPR gf_u.word [L131] (hy) = gf_u.word [L133] iy = hy & 0x7fffffff VAL [\old(x)=4294967317, \old(y)=4294967320, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, hx=1, hy=3, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] return x + y; VAL [\old(x)=4294967317, \old(y)=4294967320, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, hx=1, hy=3, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L225] RET, EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=4294967302, aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L225] float res = __ieee754_atan2f(y, x); [L228] COND TRUE res != -pi_o_4 VAL [aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=4294967302, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] [L229] __VERIFIER_error() VAL [aT_atan={-2:0}, atanhi_atan={1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=4294967302, tiny_atan2=1/1000000000000000000000000000000, x=4294967317, y=4294967320, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 99 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 138 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=99occurred 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, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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...