./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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_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 /storage/repos/svcomp/c/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 0.1.24-2e94e6a [2018-12-31 02:15:05,295 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:15:05,297 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:15:05,310 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:15:05,311 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:15:05,313 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:15:05,314 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:15:05,317 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:15:05,319 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:15:05,320 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:15:05,321 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:15:05,321 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:15:05,323 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:15:05,324 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:15:05,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:15:05,326 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:15:05,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:15:05,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:15:05,332 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:15:05,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:15:05,336 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:15:05,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:15:05,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:15:05,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:15:05,341 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:15:05,342 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:15:05,343 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:15:05,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:15:05,346 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:15:05,347 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:15:05,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:15:05,349 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:15:05,349 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:15:05,349 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:15:05,351 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:15:05,352 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:15:05,352 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:15:05,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:15:05,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:15:05,371 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:15:05,371 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:15:05,371 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:15:05,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:15:05,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:15:05,374 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:15:05,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:15:05,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:15:05,374 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:15:05,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:15:05,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:15:05,376 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:15:05,376 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:15:05,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:15:05,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:15:05,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:15:05,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:15:05,378 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:15:05,378 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:15:05,378 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:15:05,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:15:05,378 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 [2018-12-31 02:15:05,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:15:05,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:15:05,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:15:05,464 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:15:05,464 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:15:05,466 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:05,537 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e39ce41/ccdeb796d30c4472a8a0efceaf51ab4e/FLAG2f2a76fbc [2018-12-31 02:15:06,094 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:15:06,095 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:06,101 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e39ce41/ccdeb796d30c4472a8a0efceaf51ab4e/FLAG2f2a76fbc [2018-12-31 02:15:06,420 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e39ce41/ccdeb796d30c4472a8a0efceaf51ab4e [2018-12-31 02:15:06,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:15:06,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:15:06,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:15:06,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:15:06,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:15:06,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4adfdd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06, skipping insertion in model container [2018-12-31 02:15:06,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:15:06,467 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:15:06,731 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:15:06,740 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:15:06,775 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:15:06,794 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:15:06,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06 WrapperNode [2018-12-31 02:15:06,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:15:06,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:15:06,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:15:06,798 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:15:06,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:15:06,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:15:06,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:15:06,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:15:06,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (1/1) ... [2018-12-31 02:15:06,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:15:06,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:15:06,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:15:06,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:15:06,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (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 [2018-12-31 02:15:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:15:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:15:07,233 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:15:07,234 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-31 02:15:07,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:07 BoogieIcfgContainer [2018-12-31 02:15:07,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:15:07,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:15:07,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:15:07,239 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:15:07,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:15:06" (1/3) ... [2018-12-31 02:15:07,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64175f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:15:07, skipping insertion in model container [2018-12-31 02:15:07,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:06" (2/3) ... [2018-12-31 02:15:07,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64175f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:15:07, skipping insertion in model container [2018-12-31 02:15:07,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:07" (3/3) ... [2018-12-31 02:15:07,243 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:07,255 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:15:07,263 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:15:07,283 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:15:07,318 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:15:07,319 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:15:07,319 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:15:07,320 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:15:07,321 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:15:07,321 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:15:07,321 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:15:07,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:15:07,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:15:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-12-31 02:15:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 02:15:07,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:15:07,348 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:15:07,351 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:15:07,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:15:07,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2018-12-31 02:15:07,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:15:07,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:15:07,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:15:07,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:15:07,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:15:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:15:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:15:07,508 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:15:07,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:15:07 BoogieIcfgContainer [2018-12-31 02:15:07,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:15:07,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:15:07,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:15:07,529 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:15:07,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:07" (3/4) ... [2018-12-31 02:15:07,533 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:15:07,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:15:07,534 INFO L168 Benchmark]: Toolchain (without parser) took 1109.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:15:07,536 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. [2018-12-31 02:15:07,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.65 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:15:07,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.87 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:15:07,538 INFO L168 Benchmark]: Boogie Preprocessor took 27.56 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:15:07,539 INFO L168 Benchmark]: RCFGBuilder took 354.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-31 02:15:07,541 INFO L168 Benchmark]: TraceAbstraction took 292.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:15:07,541 INFO L168 Benchmark]: Witness Printer took 4.57 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. [2018-12-31 02:15:07,547 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 370.65 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 53.87 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.56 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 354.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 292.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 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(); [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); [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; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.2s 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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 0.1.24-2e94e6a [2018-12-31 02:15:10,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:15:10,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:15:10,063 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:15:10,063 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:15:10,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:15:10,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:15:10,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:15:10,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:15:10,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:15:10,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:15:10,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:15:10,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:15:10,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:15:10,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:15:10,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:15:10,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:15:10,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:15:10,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:15:10,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:15:10,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:15:10,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:15:10,097 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:15:10,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:15:10,100 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:15:10,101 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:15:10,105 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:15:10,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:15:10,111 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:15:10,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:15:10,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:15:10,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:15:10,118 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:15:10,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:15:10,122 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:15:10,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:15:10,125 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:15:10,157 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:15:10,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:15:10,162 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:15:10,162 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:15:10,163 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:15:10,163 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:15:10,163 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:15:10,163 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:15:10,163 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:15:10,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:15:10,166 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:15:10,167 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:15:10,168 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:15:10,168 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:15:10,168 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:15:10,168 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:15:10,168 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:15:10,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:15:10,172 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:15:10,172 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:15:10,172 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:15:10,173 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:15:10,173 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:15:10,173 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:15:10,173 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:15:10,173 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 [2018-12-31 02:15:10,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:15:10,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:15:10,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:15:10,263 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:15:10,263 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:15:10,264 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:10,316 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/281b2405a/8b37d88f7693487c80554f328a4e82b5/FLAGcfda92c5f [2018-12-31 02:15:10,789 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:15:10,790 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:10,796 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/281b2405a/8b37d88f7693487c80554f328a4e82b5/FLAGcfda92c5f [2018-12-31 02:15:11,161 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/281b2405a/8b37d88f7693487c80554f328a4e82b5 [2018-12-31 02:15:11,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:15:11,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:15:11,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:15:11,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:15:11,174 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:15:11,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed26ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11, skipping insertion in model container [2018-12-31 02:15:11,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:15:11,209 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:15:11,469 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:15:11,482 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:15:11,521 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:15:11,544 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:15:11,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11 WrapperNode [2018-12-31 02:15:11,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:15:11,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:15:11,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:15:11,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:15:11,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:15:11,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:15:11,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:15:11,607 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:15:11,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (1/1) ... [2018-12-31 02:15:11,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:15:11,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:15:11,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:15:11,744 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:15:11,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (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 [2018-12-31 02:15:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:15:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:15:23,399 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:15:23,400 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-31 02:15:23,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:23 BoogieIcfgContainer [2018-12-31 02:15:23,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:15:23,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:15:23,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:15:23,415 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:15:23,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:15:11" (1/3) ... [2018-12-31 02:15:23,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84d468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:15:23, skipping insertion in model container [2018-12-31 02:15:23,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:15:11" (2/3) ... [2018-12-31 02:15:23,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84d468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:15:23, skipping insertion in model container [2018-12-31 02:15:23,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:23" (3/3) ... [2018-12-31 02:15:23,430 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-12-31 02:15:23,472 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:15:23,495 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:15:23,533 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:15:23,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:15:23,613 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:15:23,613 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:15:23,613 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:15:23,614 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:15:23,614 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:15:23,614 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:15:23,615 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:15:23,615 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:15:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-12-31 02:15:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 02:15:23,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:15:23,648 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:15:23,651 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:15:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:15:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2018-12-31 02:15:23,673 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:15:23,674 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 [2018-12-31 02:15:23,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:23:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:23:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:23:19,671 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:23:19,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:23:19 BoogieIcfgContainer [2018-12-31 02:23:19,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:23:19,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:23:19,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:23:19,713 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:23:19,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:15:23" (3/4) ... [2018-12-31 02:23:19,716 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 02:23:19,766 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:23:19,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:23:19,767 INFO L168 Benchmark]: Toolchain (without parser) took 488601.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -116.8 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,771 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-12-31 02:23:19,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.02 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,776 INFO L168 Benchmark]: Boogie Preprocessor took 135.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,777 INFO L168 Benchmark]: RCFGBuilder took 11659.15 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,778 INFO L168 Benchmark]: TraceAbstraction took 476307.85 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:23:19,779 INFO L168 Benchmark]: Witness Printer took 53.54 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. [2018-12-31 02:23:19,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 376.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 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 60.02 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 135.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11659.15 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 476307.85 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 53.54 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: - 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); [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; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 476.1s 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=12occurred 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, 458.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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...