java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/square_8_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:37:35,741 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:37:35,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:37:35,766 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:37:35,766 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:37:35,768 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:37:35,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:37:35,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:37:35,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:37:35,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:37:35,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:37:35,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:37:35,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:37:35,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:37:35,793 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:37:35,794 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:37:35,795 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:37:35,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:37:35,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:37:35,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:37:35,807 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:37:35,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:37:35,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 15:37:35,815 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 15:37:35,815 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 15:37:35,816 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 15:37:35,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 15:37:35,820 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 15:37:35,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 15:37:35,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 15:37:35,825 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 15:37:35,826 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 15:37:35,826 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 15:37:35,826 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 15:37:35,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 15:37:35,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 15:37:35,830 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 15:37:35,856 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:37:35,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:37:35,858 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:37:35,858 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:37:35,859 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:37:35,859 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:37:35,859 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:37:35,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:37:35,860 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:37:35,860 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:37:35,861 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:37:35,861 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:37:35,861 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:37:35,861 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:37:35,861 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:37:35,862 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:37:35,862 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:37:35,862 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:37:35,862 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:37:35,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:37:35,863 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:37:35,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:37:35,863 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:37:35,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:37:35,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:37:35,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:37:35,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:37:35,864 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:37:35,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:37:35,866 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:37:35,866 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:37:35,866 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:37:35,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:37:35,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:37:35,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:37:35,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:37:35,953 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:37:35,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-09-19 15:37:36,316 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d60f4d33/a385cb934087490bad9e4e80a02a80fb/FLAGa894ef2e3 [2018-09-19 15:37:36,494 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:37:36,495 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-09-19 15:37:36,503 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d60f4d33/a385cb934087490bad9e4e80a02a80fb/FLAGa894ef2e3 [2018-09-19 15:37:36,527 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d60f4d33/a385cb934087490bad9e4e80a02a80fb [2018-09-19 15:37:36,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:37:36,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:37:36,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:37:36,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:37:36,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:37:36,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572233bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36, skipping insertion in model container [2018-09-19 15:37:36,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,573 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:37:36,792 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:37:36,814 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:37:36,821 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:37:36,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36 WrapperNode [2018-09-19 15:37:36,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:37:36,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:37:36,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:37:36,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:37:36,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (1/1) ... [2018-09-19 15:37:36,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:37:36,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:37:36,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:37:36,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:37:36,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (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 [2018-09-19 15:37:36,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:37:36,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:37:36,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:37:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:37:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:37:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 15:37:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:37:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:37:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:37:39,258 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:37:39,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:37:39 BoogieIcfgContainer [2018-09-19 15:37:39,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:37:39,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:37:39,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:37:39,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:37:39,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:37:36" (1/3) ... [2018-09-19 15:37:39,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4924870b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:37:39, skipping insertion in model container [2018-09-19 15:37:39,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:37:36" (2/3) ... [2018-09-19 15:37:39,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4924870b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:37:39, skipping insertion in model container [2018-09-19 15:37:39,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:37:39" (3/3) ... [2018-09-19 15:37:39,268 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8_true-unreach-call_true-termination.i [2018-09-19 15:37:39,279 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:37:39,288 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:37:39,343 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:37:39,344 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:37:39,344 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:37:39,344 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:37:39,345 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:37:39,345 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:37:39,345 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:37:39,345 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:37:39,346 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:37:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-09-19 15:37:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-19 15:37:39,382 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:37:39,384 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:37:39,386 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:37:39,392 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-09-19 15:37:39,398 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:37:39,399 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 15:37:39,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 15:38:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:38:54,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:38:56,570 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from false [2018-09-19 15:38:58,661 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (= c_main_~result~0 (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.lt main_~IN~0 .cse0) (fp.geq main_~IN~0 (_ +zero 8 24))))) is different from true [2018-09-19 15:39:11,347 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24)))))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.lt main_~IN~0 .cse1) (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) RNE (/ 3.0 2.0)))) (fp.geq main_~IN~0 (_ +zero 8 24)))))) is different from false [2018-09-19 15:39:13,450 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) v_prenex_1)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24)))))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (fp.lt main_~IN~0 .cse1) (not (fp.lt (fp.sub RNE (fp.add RNE (fp.sub RNE (fp.add RNE .cse1 (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) main_~IN~0)) (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) RNE (/ 3.0 2.0)))) (fp.geq main_~IN~0 (_ +zero 8 24)))))) is different from true [2018-09-19 15:39:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:39:13,457 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:39:13,479 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:39:13,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 15:39:13,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 15:39:13,499 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 15:39:13,499 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-09-19 15:39:13,502 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-09-19 15:39:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:39:13,525 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-09-19 15:39:13,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 15:39:13,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-09-19 15:39:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:39:13,536 INFO L225 Difference]: With dead ends: 18 [2018-09-19 15:39:13,537 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 15:39:13,541 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-09-19 15:39:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 15:39:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 15:39:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 15:39:13,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 15:39:13,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-09-19 15:39:13,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:39:13,571 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 15:39:13,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 15:39:13,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 15:39:13,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 15:39:13,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 15:39:13,630 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 15:39:13,630 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 15:39:13,630 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 15:39:13,630 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 15:39:13,631 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 15:39:13,631 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 15:39:13,631 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-19 15:39:13,632 INFO L426 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-09-19 15:39:13,632 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-09-19 15:39:13,632 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-09-19 15:39:13,632 INFO L426 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-09-19 15:39:13,633 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-09-19 15:39:13,633 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-09-19 15:39:13,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:39:13 BoogieIcfgContainer [2018-09-19 15:39:13,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 15:39:13,637 INFO L168 Benchmark]: Toolchain (without parser) took 97095.38 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -727.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:39:13,640 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:39:13,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 15:39:13,641 INFO L168 Benchmark]: Boogie Preprocessor took 36.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:39:13,642 INFO L168 Benchmark]: RCFGBuilder took 2383.23 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-19 15:39:13,643 INFO L168 Benchmark]: TraceAbstraction took 94376.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-09-19 15:39:13,648 INFO L336 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 2383.23 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 94376.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 94.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 74.8s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 1224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...