/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/floats-cdfpl/newton_2_6_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 67c4f5f280d9686f1a0cd5046481e7418df9e155 .............................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/floats-cdfpl/newton_2_6_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 67c4f5f280d9686f1a0cd5046481e7418df9e155 ................................................................................................................................................................................................................................................. 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 0.1.23-40ef509 [2018-09-20 13:25:31,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:31,543 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:31,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:31,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:31,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:31,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:31,568 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:31,572 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:31,574 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:31,578 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:31,578 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:31,579 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:31,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:31,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:31,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:31,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:31,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:31,598 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:31,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:31,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:31,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:31,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:31,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:31,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:31,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:31,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:31,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:31,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:31,616 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:31,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:31,617 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:31,617 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:31,618 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:31,619 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:31,620 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:31,620 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:25:31,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:31,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:31,640 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:31,641 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:31,641 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:31,642 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:31,642 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:31,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:31,643 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:31,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:25:31,643 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:31,643 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:31,643 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:31,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:31,644 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:31,644 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:31,644 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:31,644 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:31,645 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:31,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:31,646 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:31,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:31,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:31,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:31,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:31,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:31,647 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:25:31,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:31,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:25:31,649 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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-09-20 13:25:31,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:31,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:31,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:31,746 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:31,748 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:31,748 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:32,115 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc079b87/7dc4d8071b594c21b9f4f576645c8855/FLAG63fa9fc05 [2018-09-20 13:25:32,308 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:32,309 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:32,316 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc079b87/7dc4d8071b594c21b9f4f576645c8855/FLAG63fa9fc05 [2018-09-20 13:25:32,338 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc079b87/7dc4d8071b594c21b9f4f576645c8855 [2018-09-20 13:25:32,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:32,347 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:32,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:32,356 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:32,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6b6dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,375 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:32,610 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,628 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:32,638 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32 WrapperNode [2018-09-20 13:25:32,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:32,656 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:32,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:32,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:32,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:32,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (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 [2018-09-20 13:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:33,257 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:33,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:33,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:33,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:33,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:33,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:32" (1/3) ... [2018-09-20 13:25:33,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d9031d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:33, skipping insertion in model container [2018-09-20 13:25:33,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (2/3) ... [2018-09-20 13:25:33,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d9031d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:33, skipping insertion in model container [2018-09-20 13:25:33,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:33" (3/3) ... [2018-09-20 13:25:33,271 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:33,283 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:33,294 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:33,351 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:33,352 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:33,352 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:33,353 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:33,353 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:33,353 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:33,353 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:33,353 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:33,353 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-20 13:25:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 13:25:33,383 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:33,384 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:33,387 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:33,392 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-09-20 13:25:33,394 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:25:33,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:25:33,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:33,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,527 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:25:33,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:25:33,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:25:33,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:25:33,555 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:25:33,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:33" (3/4) ... [2018-09-20 13:25:33,566 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:25:33,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:25:33,567 INFO L168 Benchmark]: Toolchain (without parser) took 1223.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,570 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,572 INFO L168 Benchmark]: Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,573 INFO L168 Benchmark]: RCFGBuilder took 566.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,575 INFO L168 Benchmark]: TraceAbstraction took 294.19 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,577 INFO L168 Benchmark]: Witness Printer took 12.11 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. [2018-09-20 13:25:33,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 566.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 294.19 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Witness Printer took 12.11 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 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=5] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=5, x=5] [L19] EXPR f(IN) VAL [f(IN)=4, IN=5] [L19] CALL, EXPR fp(IN) VAL [\old(x)=5] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=5, x=5] [L19] EXPR fp(IN) VAL [f(IN)=4, fp(IN)=1, IN=5] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L21] EXPR f(x) VAL [f(x)=3, IN=5, x=2] [L21] CALL, EXPR fp(x) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L21] EXPR fp(x) VAL [f(x)=3, fp(x)=0, IN=5, x=2] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=5] [L28] __VERIFIER_error() VAL [IN=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 25 NumberOfCodeBlocks, 25 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 0.1.23-40ef509 [2018-09-20 13:25:35,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:35,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:35,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:35,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:35,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:35,952 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:35,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:35,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:35,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:35,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:35,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:35,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:35,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:35,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:35,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:35,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:35,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:35,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:35,971 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:35,972 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:35,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:35,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:35,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:35,977 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:35,978 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:35,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:35,980 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:35,981 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:35,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:35,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:35,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:35,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:35,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:35,984 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:35,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:35,988 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:25:36,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:36,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:36,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:36,005 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:36,006 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:36,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:36,006 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:36,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:36,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:36,007 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:25:36,008 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:25:36,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:36,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:36,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:36,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:36,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:36,009 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:36,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:36,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:36,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:36,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:36,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:36,010 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:25:36,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:36,010 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:25:36,010 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:25:36,010 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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-09-20 13:25:36,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:36,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:36,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:36,106 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:36,106 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:36,107 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:36,454 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c678aaac/0445e6a50016420ea799e224e0e38aa4/FLAGbd62c54be [2018-09-20 13:25:36,589 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:36,590 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:36,597 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c678aaac/0445e6a50016420ea799e224e0e38aa4/FLAGbd62c54be [2018-09-20 13:25:36,613 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c678aaac/0445e6a50016420ea799e224e0e38aa4 [2018-09-20 13:25:36,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:36,624 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:36,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:36,636 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:36,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d65a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36, skipping insertion in model container [2018-09-20 13:25:36,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,654 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:36,898 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:36,941 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36 WrapperNode [2018-09-20 13:25:36,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:36,973 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:36,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:37,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:37,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:37,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:37,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:37,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (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 [2018-09-20 13:25:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:43,908 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:43,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43 BoogieIcfgContainer [2018-09-20 13:25:43,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:43,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:43,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:43,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:43,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:36" (1/3) ... [2018-09-20 13:25:43,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f69fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:43, skipping insertion in model container [2018-09-20 13:25:43,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (2/3) ... [2018-09-20 13:25:43,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f69fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:43, skipping insertion in model container [2018-09-20 13:25:43,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43" (3/3) ... [2018-09-20 13:25:43,920 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-09-20 13:25:43,931 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:43,939 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:43,989 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:43,990 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:43,990 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:43,990 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:43,991 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:43,991 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:43,992 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:43,992 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:43,992 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-20 13:25:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 13:25:44,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:44,027 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:44,031 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:44,036 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-09-20 13:25:44,041 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:25:44,042 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 [2018-09-20 13:25:44,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:25,659 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:26:25,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:25 BoogieIcfgContainer [2018-09-20 13:26:25,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:26:25,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:26:25,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:26:25,700 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:26:25,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43" (3/4) ... [2018-09-20 13:26:25,702 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:26:25,755 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:26:25,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:26:25,756 INFO L168 Benchmark]: Toolchain (without parser) took 49135.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:25,759 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:25,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.72 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:25,760 INFO L168 Benchmark]: Boogie Preprocessor took 62.31 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:25,760 INFO L168 Benchmark]: RCFGBuilder took 6874.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:25,762 INFO L168 Benchmark]: TraceAbstraction took 41787.68 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:25,763 INFO L168 Benchmark]: Witness Printer took 56.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:25,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.72 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.31 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6874.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 41787.68 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 56.46 ms. Allocated memory is still 1.2 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: - 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(); [L19] CALL, EXPR f(IN) VAL [\old(x)=1.163926601409912] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.163926601409912, \result=0.919501781463623, x=1.163926601409912] [L19] EXPR f(IN) VAL [f(IN)=0.919501781463623, IN=1.163926601409912] [L19] CALL, EXPR fp(IN) VAL [\old(x)=1.163926601409912] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.163926601409912, \result=0.40256065130233765, x=1.163926601409912] [L19] EXPR fp(IN) VAL [f(IN)=0.919501781463623, fp(IN)=0.40256065130233765, IN=1.163926601409912] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=-1.1202056407928467] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.1202056407928467, \result=-0.9010608196258545, x=-1.1202056407928467] [L21] EXPR f(x) VAL [f(x)=-0.9010608196258545, IN=1.163926601409912, x=-1.1202056407928467] [L21] CALL, EXPR fp(x) VAL [\old(x)=-1.1202056407928467] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1202056407928467, \result=0.44092559814453125, x=-1.1202056407928467] [L21] EXPR fp(x) VAL [f(x)=-0.9010608196258545, fp(x)=0.44092559814453125, IN=1.163926601409912, x=-1.1202056407928467] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=1.163926601409912, x=0.92336106300354] [L28] __VERIFIER_error() VAL [IN=1.163926601409912, x=0.92336106300354] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 41.7s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 7.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 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...