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_0270a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:46,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:46,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:46,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:46,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:46,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:46,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:46,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:46,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:46,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:46,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:46,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:46,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:46,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:46,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:46,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:46,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:46,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:46,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:46,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:46,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:46,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:46,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:46,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:46,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:46,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:46,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:46,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:46,391 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 01:21:46,406 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:46,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:46,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:46,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:46,408 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:46,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:46,409 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:46,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:46,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:46,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:46,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:46,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:46,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:46,410 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:46,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:46,411 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:46,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:46,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:46,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:46,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:46,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:46,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:46,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:46,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:46,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:46,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:46,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:46,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:46,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:46,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:46,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:46,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:46,465 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:46,465 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:46,466 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2019-09-08 01:21:46,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ab743c8/f705c228de8d4bf793fee116ef5f6b61/FLAG091894570 [2019-09-08 01:21:46,981 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:46,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2019-09-08 01:21:46,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ab743c8/f705c228de8d4bf793fee116ef5f6b61/FLAG091894570 [2019-09-08 01:21:47,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ab743c8/f705c228de8d4bf793fee116ef5f6b61 [2019-09-08 01:21:47,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:47,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:47,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:47,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:47,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:47,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d455d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47, skipping insertion in model container [2019-09-08 01:21:47,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,421 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:47,449 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:47,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:47,722 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:47,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:47,890 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:47,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47 WrapperNode [2019-09-08 01:21:47,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:47,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:47,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:47,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:47,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (1/1) ... [2019-09-08 01:21:47,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:47,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:47,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:47,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:47,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (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 01:21:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2019-09-08 01:21:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2019-09-08 01:21:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2019-09-08 01:21:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2019-09-08 01:21:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2019-09-08 01:21:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2019-09-08 01:21:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2019-09-08 01:21:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:48,684 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:48,684 INFO L283 CfgBuilder]: Removed 18 assume(true) statements. [2019-09-08 01:21:48,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:48 BoogieIcfgContainer [2019-09-08 01:21:48,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:48,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:48,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:48,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:48,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:47" (1/3) ... [2019-09-08 01:21:48,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6568f7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:48, skipping insertion in model container [2019-09-08 01:21:48,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:47" (2/3) ... [2019-09-08 01:21:48,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6568f7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:48, skipping insertion in model container [2019-09-08 01:21:48,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:48" (3/3) ... [2019-09-08 01:21:48,696 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2019-09-08 01:21:48,707 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:48,721 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:48,737 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:48,765 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:48,766 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:48,766 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:48,766 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:48,766 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:48,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:48,767 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:48,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:48,767 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-09-08 01:21:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:21:48,795 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:48,796 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:48,799 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:48,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:48,805 INFO L82 PathProgramCache]: Analyzing trace with hash -874682043, now seen corresponding path program 1 times [2019-09-08 01:21:48,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:48,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:48,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:48,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:48,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:48,963 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 01:21:48,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:48,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:48,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:48,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:48,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:48,985 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-09-08 01:21:49,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:49,021 INFO L93 Difference]: Finished difference Result 152 states and 229 transitions. [2019-09-08 01:21:49,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:49,023 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-09-08 01:21:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:49,034 INFO L225 Difference]: With dead ends: 152 [2019-09-08 01:21:49,035 INFO L226 Difference]: Without dead ends: 76 [2019-09-08 01:21:49,039 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 01:21:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-08 01:21:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-08 01:21:49,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-08 01:21:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 94 transitions. [2019-09-08 01:21:49,090 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 94 transitions. Word has length 17 [2019-09-08 01:21:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:49,091 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 94 transitions. [2019-09-08 01:21:49,091 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 94 transitions. [2019-09-08 01:21:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-08 01:21:49,092 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:49,093 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 01:21:49,093 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:49,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:49,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1166852346, now seen corresponding path program 1 times [2019-09-08 01:21:49,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:49,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:49,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:49,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:49,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:49,213 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:49,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:49 BoogieIcfgContainer [2019-09-08 01:21:49,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:49,257 INFO L168 Benchmark]: Toolchain (without parser) took 1853.08 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.8 MB in the beginning and 110.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,258 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.41 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.6 MB in the beginning and 174.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,260 INFO L168 Benchmark]: Boogie Preprocessor took 76.57 ms. Allocated memory is still 200.8 MB. Free memory was 174.1 MB in the beginning and 171.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,261 INFO L168 Benchmark]: RCFGBuilder took 717.27 ms. Allocated memory is still 200.8 MB. Free memory was 171.6 MB in the beginning and 139.2 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,262 INFO L168 Benchmark]: TraceAbstraction took 568.08 ms. Allocated memory is still 200.8 MB. Free memory was 138.6 MB in the beginning and 110.8 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:49,266 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 486.41 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.6 MB in the beginning and 174.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.57 ms. Allocated memory is still 200.8 MB. Free memory was 174.1 MB in the beginning and 171.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 717.27 ms. Allocated memory is still 200.8 MB. Free memory was 171.6 MB in the beginning and 139.2 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 568.08 ms. Allocated memory is still 200.8 MB. Free memory was 138.6 MB in the beginning and 110.8 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 198]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 197, overapproximation of someUnaryDOUBLEoperation at line 111, overapproximation of bitwiseAnd at line 125, overapproximation of someUnaryFLOAToperation at line 193, overapproximation of someBinaryArithmeticFLOAToperation at line 128. Possible FailurePath: [L24] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L107-L115] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=4294967315, \old(one_asin)=4294967301, \old(one_sqrt)=4294967299, \old(pio2_hi_asin)=4294967300, \old(pio2_lo_asin)=4294967310, \old(pio4_hi_asin)=4294967302, \old(pS0_asin)=4294967308, \old(pS1_asin)=4294967303, \old(pS2_asin)=4294967298, \old(pS3_asin)=4294967307, \old(pS4_asin)=4294967313, \old(pS5_asin)=4294967305, \old(qS1_asin)=4294967317, \old(qS2_asin)=4294967314, \old(qS3_asin)=4294967296, \old(qS4_asin)=4294967311, \old(tiny_sqrt)=4294967312, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L193] float x = -0.0f; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L194] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=4294967304, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L118] float t, w, p, q, c, r, s; [L119] __int32_t hx, ix; VAL [\old(x)=4294967304, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L121] ieee_float_shape_type gf_u; [L122] gf_u.value = (x) [L123] EXPR gf_u.word [L123] (hx) = gf_u.word [L125] ix = hx & 0x7fffffff VAL [\old(x)=4294967304, huge_asin=1000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L126] COND TRUE ix == 0x3f800000 [L128] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=4294967304, huge_asin=1000000000000000000000000000000, hx=-1, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L194] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=4294967316, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L194] float res = __ieee754_asinf(x); [L197] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=4294967316, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L197] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L198] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=4294967316, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 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=80occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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...