./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ...................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:21:38,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:21:38,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:21:38,410 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:21:38,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:21:38,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:21:38,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:21:38,416 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:21:38,421 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:21:38,423 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:21:38,427 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:21:38,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:21:38,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:21:38,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:21:38,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:21:38,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:21:38,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:21:38,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:21:38,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:21:38,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:21:38,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:21:38,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:21:38,444 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:21:38,444 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:21:38,444 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:21:38,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:21:38,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:21:38,448 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:21:38,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:21:38,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:21:38,450 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:21:38,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:21:38,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:21:38,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:21:38,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:21:38,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:21:38,454 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:21:38,471 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:21:38,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:21:38,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:21:38,472 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:21:38,472 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:21:38,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:21:38,473 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:21:38,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:21:38,473 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:21:38,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:21:38,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:21:38,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:21:38,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:21:38,475 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:21:38,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:21:38,476 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:21:38,476 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:21:38,476 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:21:38,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:21:38,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:21:38,477 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:21:38,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:21:38,478 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:21:38,478 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:21:38,478 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:21:38,479 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:21:38,482 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:21:38,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:21:38,482 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2019-01-12 07:21:38,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:21:38,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:21:38,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:21:38,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:21:38,571 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:21:38,573 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:38,641 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eefa5a8/31cd5f45d45c48d48ab04daf3faf08c0/FLAG9e4791a99 [2019-01-12 07:21:39,122 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:21:39,123 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:39,129 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eefa5a8/31cd5f45d45c48d48ab04daf3faf08c0/FLAG9e4791a99 [2019-01-12 07:21:39,465 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eefa5a8/31cd5f45d45c48d48ab04daf3faf08c0 [2019-01-12 07:21:39,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:21:39,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:21:39,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:21:39,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:21:39,478 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:21:39,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748c1b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39, skipping insertion in model container [2019-01-12 07:21:39,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:21:39,508 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:21:39,729 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:21:39,734 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:21:39,758 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:21:39,773 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:21:39,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39 WrapperNode [2019-01-12 07:21:39,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:21:39,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:21:39,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:21:39,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:21:39,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:21:39,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:21:39,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:21:39,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:21:39,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... [2019-01-12 07:21:39,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:21:39,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:21:39,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:21:39,853 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:21:39,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:21:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:21:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:21:40,171 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:21:40,172 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:21:40,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:40 BoogieIcfgContainer [2019-01-12 07:21:40,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:21:40,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:21:40,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:21:40,177 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:21:40,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:21:39" (1/3) ... [2019-01-12 07:21:40,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcfed3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:21:40, skipping insertion in model container [2019-01-12 07:21:40,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:39" (2/3) ... [2019-01-12 07:21:40,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcfed3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:21:40, skipping insertion in model container [2019-01-12 07:21:40,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:40" (3/3) ... [2019-01-12 07:21:40,181 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:40,191 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:21:40,197 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:21:40,213 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:21:40,244 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:21:40,244 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:21:40,245 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:21:40,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:21:40,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:21:40,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:21:40,245 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:21:40,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:21:40,245 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:21:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-12 07:21:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 07:21:40,267 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:21:40,268 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 07:21:40,271 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:21:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:21:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-01-12 07:21:40,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:21:40,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:21:40,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:21:40,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:21:40,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:21:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:21:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:21:40,383 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:21:40,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:21:40 BoogieIcfgContainer [2019-01-12 07:21:40,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:21:40,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:21:40,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:21:40,402 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:21:40,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:40" (3/4) ... [2019-01-12 07:21:40,406 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:21:40,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:21:40,407 INFO L168 Benchmark]: Toolchain (without parser) took 935.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:40,409 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:40,410 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.82 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:40,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:40,411 INFO L168 Benchmark]: Boogie Preprocessor took 27.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:40,412 INFO L168 Benchmark]: RCFGBuilder took 320.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:40,414 INFO L168 Benchmark]: TraceAbstraction took 226.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:40,415 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:40,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.82 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 320.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 226.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:21:42,788 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:21:42,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:21:42,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:21:42,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:21:42,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:21:42,805 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:21:42,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:21:42,809 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:21:42,810 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:21:42,811 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:21:42,811 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:21:42,812 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:21:42,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:21:42,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:21:42,816 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:21:42,817 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:21:42,819 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:21:42,821 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:21:42,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:21:42,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:21:42,825 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:21:42,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:21:42,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:21:42,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:21:42,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:21:42,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:21:42,832 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:21:42,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:21:42,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:21:42,835 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:21:42,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:21:42,836 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:21:42,836 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:21:42,837 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:21:42,838 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:21:42,838 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:21:42,854 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:21:42,855 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:21:42,856 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:21:42,856 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:21:42,857 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:21:42,857 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:21:42,857 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:21:42,857 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:21:42,857 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:21:42,858 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:21:42,859 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:21:42,860 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:21:42,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:21:42,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:21:42,860 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:21:42,860 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:21:42,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:21:42,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:21:42,862 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:21:42,863 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:21:42,864 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2019-01-12 07:21:42,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:21:42,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:21:42,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:21:42,926 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:21:42,926 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:21:42,927 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:42,995 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b033b713b/8c8e2e409ca247dba9fda9d77efd7e4e/FLAG4217a8191 [2019-01-12 07:21:43,467 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:21:43,468 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:43,475 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b033b713b/8c8e2e409ca247dba9fda9d77efd7e4e/FLAG4217a8191 [2019-01-12 07:21:43,833 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b033b713b/8c8e2e409ca247dba9fda9d77efd7e4e [2019-01-12 07:21:43,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:21:43,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:21:43,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:21:43,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:21:43,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:21:43,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:21:43" (1/1) ... [2019-01-12 07:21:43,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389c3b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:43, skipping insertion in model container [2019-01-12 07:21:43,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:21:43" (1/1) ... [2019-01-12 07:21:43,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:21:43,878 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:21:44,066 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:21:44,077 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:21:44,098 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:21:44,113 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:21:44,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44 WrapperNode [2019-01-12 07:21:44,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:21:44,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:21:44,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:21:44,115 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:21:44,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:21:44,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:21:44,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:21:44,161 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:21:44,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (1/1) ... [2019-01-12 07:21:44,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:21:44,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:21:44,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:21:44,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:21:44,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (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 [2019-01-12 07:21:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:21:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:21:50,165 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:21:50,165 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:21:50,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:50 BoogieIcfgContainer [2019-01-12 07:21:50,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:21:50,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:21:50,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:21:50,171 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:21:50,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:21:43" (1/3) ... [2019-01-12 07:21:50,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbfe7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:21:50, skipping insertion in model container [2019-01-12 07:21:50,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:21:44" (2/3) ... [2019-01-12 07:21:50,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbfe7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:21:50, skipping insertion in model container [2019-01-12 07:21:50,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:50" (3/3) ... [2019-01-12 07:21:50,176 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2019-01-12 07:21:50,184 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:21:50,191 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:21:50,207 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:21:50,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:21:50,239 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:21:50,239 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:21:50,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:21:50,240 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:21:50,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:21:50,241 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:21:50,241 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:21:50,241 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:21:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 07:21:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 07:21:50,269 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:21:50,270 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 07:21:50,272 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:21:50,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:21:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-01-12 07:21:50,282 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:21:50,283 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-01-12 07:21:50,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:21:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:21:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:21:57,589 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:21:57,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:21:57 BoogieIcfgContainer [2019-01-12 07:21:57,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:21:57,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:21:57,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:21:57,616 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:21:57,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:21:50" (3/4) ... [2019-01-12 07:21:57,619 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 07:21:57,660 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:21:57,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:21:57,661 INFO L168 Benchmark]: Toolchain (without parser) took 13824.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:57,663 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:57,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.33 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:57,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.13 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:21:57,665 INFO L168 Benchmark]: Boogie Preprocessor took 50.13 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:57,666 INFO L168 Benchmark]: RCFGBuilder took 5955.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:57,667 INFO L168 Benchmark]: TraceAbstraction took 7448.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:57,667 INFO L168 Benchmark]: Witness Printer took 44.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:21:57,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.33 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.13 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.13 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5955.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7448.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. UNSAFE Result, 7.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...