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_0663b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:22:21,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:22:21,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:22:21,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:22:21,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:22:21,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:22:21,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:22:21,643 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 01:22:21,657 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:22:21,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:22:21,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:22:21,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:22:21,659 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:22:21,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:22:21,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:22:21,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:22:21,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:22:21,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:22:21,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:22:21,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:22:21,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:22:21,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:22:21,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:22:21,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:22:21,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:22:21,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:22:21,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:22:21,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:22:21,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:22:21,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:22:21,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:22:21,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:22:21,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:22:21,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:22:21,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:22:21,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:22:21,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:22:21,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:22:21,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:22:21,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:22:21,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:22:21,710 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:22:21,711 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0663b.c [2019-09-08 01:22:21,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53320f83c/c82b64ffdc80494498b6390dbcfe4d9d/FLAGd147fa6e7 [2019-09-08 01:22:22,226 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:22:22,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0663b.c [2019-09-08 01:22:22,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53320f83c/c82b64ffdc80494498b6390dbcfe4d9d/FLAGd147fa6e7 [2019-09-08 01:22:22,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53320f83c/c82b64ffdc80494498b6390dbcfe4d9d [2019-09-08 01:22:22,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:22:22,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:22:22,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:22:22,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:22:22,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:22:22,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:22:22" (1/1) ... [2019-09-08 01:22:22,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235424ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:22, skipping insertion in model container [2019-09-08 01:22:22,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:22:22" (1/1) ... [2019-09-08 01:22:22,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:22:22,669 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:22:23,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:22:23,009 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:22:23,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:22:23,091 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:22:23,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23 WrapperNode [2019-09-08 01:22:23,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:22:23,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:22:23,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:22:23,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:22:23,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (1/1) ... [2019-09-08 01:22:23,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:22:23,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:22:23,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:22:23,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:22:23,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (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 01:22:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:22:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:22:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2019-09-08 01:22:23,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2019-09-08 01:22:23,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2019-09-08 01:22:23,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:22:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:22:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:22:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2019-09-08 01:22:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:22:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:22:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:22:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:22:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:22:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:22:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:22:23,851 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:22:23,851 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-08 01:22:23,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:22:23 BoogieIcfgContainer [2019-09-08 01:22:23,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:22:23,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:22:23,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:22:23,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:22:23,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:22:22" (1/3) ... [2019-09-08 01:22:23,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f74aaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:22:23, skipping insertion in model container [2019-09-08 01:22:23,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:22:23" (2/3) ... [2019-09-08 01:22:23,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f74aaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:22:23, skipping insertion in model container [2019-09-08 01:22:23,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:22:23" (3/3) ... [2019-09-08 01:22:23,864 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663b.c [2019-09-08 01:22:23,875 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:22:23,884 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:22:23,903 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:22:23,940 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:22:23,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:22:23,941 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:22:23,941 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:22:23,941 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:22:23,941 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:22:23,942 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:22:23,942 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:22:23,942 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:22:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2019-09-08 01:22:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 01:22:23,972 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:22:23,973 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:22:23,975 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:22:23,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:22:23,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1526168591, now seen corresponding path program 1 times [2019-09-08 01:22:23,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:22:23,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:22:24,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:24,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:22:24,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:22:24,154 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 01:22:24,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:22:24,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:22:24,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:22:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:22:24,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:22:24,186 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 2 states. [2019-09-08 01:22:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:22:24,223 INFO L93 Difference]: Finished difference Result 193 states and 306 transitions. [2019-09-08 01:22:24,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:22:24,224 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-08 01:22:24,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:22:24,235 INFO L225 Difference]: With dead ends: 193 [2019-09-08 01:22:24,236 INFO L226 Difference]: Without dead ends: 96 [2019-09-08 01:22:24,240 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 01:22:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-09-08 01:22:24,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-09-08 01:22:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-09-08 01:22:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2019-09-08 01:22:24,289 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 19 [2019-09-08 01:22:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:22:24,289 INFO L475 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2019-09-08 01:22:24,290 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:22:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2019-09-08 01:22:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:22:24,291 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:22:24,291 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] [2019-09-08 01:22:24,292 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:22:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:22:24,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1732400538, now seen corresponding path program 1 times [2019-09-08 01:22:24,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:22:24,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:22:24,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:24,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:22:24,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:22:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:22:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:22:24,619 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:22:24,664 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967306 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:24,666 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967321 could not be translated for associated CType ARRAY#_11_~FLOAT# [2019-09-08 01:22:24,667 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967313 could not be translated for associated CType ARRAY#_11_~FLOAT# [2019-09-08 01:22:24,667 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967316 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:24,667 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967309 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:24,668 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967315 could not be translated for associated CType ARRAY#_4_~FLOAT# [2019-09-08 01:22:24,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:22:24 BoogieIcfgContainer [2019-09-08 01:22:24,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:22:24,708 INFO L168 Benchmark]: Toolchain (without parser) took 2086.21 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 90.5 MB in the end (delta: -308.7 kB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:24,709 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:22:24,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.92 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 89.7 MB in the beginning and 171.9 MB in the end (delta: -82.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:24,712 INFO L168 Benchmark]: Boogie Preprocessor took 68.07 ms. Allocated memory is still 200.8 MB. Free memory was 171.9 MB in the beginning and 169.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:24,714 INFO L168 Benchmark]: RCFGBuilder took 692.25 ms. Allocated memory is still 200.8 MB. Free memory was 169.4 MB in the beginning and 130.7 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:24,715 INFO L168 Benchmark]: TraceAbstraction took 850.79 ms. Allocated memory is still 200.8 MB. Free memory was 130.7 MB in the beginning and 90.5 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:22:24,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 470.92 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 89.7 MB in the beginning and 171.9 MB in the end (delta: -82.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.07 ms. Allocated memory is still 200.8 MB. Free memory was 171.9 MB in the beginning and 169.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 692.25 ms. Allocated memory is still 200.8 MB. Free memory was 169.4 MB in the beginning and 130.7 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 850.79 ms. Allocated memory is still 200.8 MB. Free memory was 130.7 MB in the beginning and 90.5 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967306 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967321 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967313 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 4294967309 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967315 could not be translated for associated CType ARRAY#_4_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 230]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 229, 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)=4294967310, \old(one_atan)=4294967300, \old(pi)=4294967307, \old(pi_lo_atan2)=4294967319, \old(pi_o_2)=4294967301, \old(pi_o_4)=4294967305, \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] [L216] float x = 0.0f; [L217] float y = __VERIFIER_nondet_float(); [L224] COND TRUE y > 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, x=0, y=4294967311, zero_atan2=0] [L226] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=0, \old(y)=4294967311, 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)=0, \old(y)=4294967311, 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=0, y=4294967311, 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)=0, \old(y)=4294967311, 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=0, y=4294967311, 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)=0, \old(y)=4294967311, 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=0, y=4294967311, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] return x + y; VAL [\old(x)=0, \old(y)=4294967311, 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=0, y=4294967311, zero_atan2=0] [L226] 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=0, y=4294967311, zero_atan2=0] [L226] float res = __ieee754_atan2f(y, x); [L229] COND TRUE res != pi_o_2 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=0, y=4294967311, zero_atan2=0] [L230] __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=0, y=4294967311, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 101 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 141 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=101occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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...