/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/newton_1_7_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_1_7_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 70fe3c899c400d059184c32a286d7d2375d5f495 ................................................................................................................................................................................................................................. 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_1_7_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 70fe3c899c400d059184c32a286d7d2375d5f495 .................................................................................................................................................................................................................................... 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 13:25:31,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:31,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:31,406 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:31,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:31,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:31,410 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:31,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:31,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:31,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:31,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:31,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:31,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:31,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:31,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:31,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:31,436 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:31,440 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:31,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:31,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:31,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:31,451 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:31,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:31,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:31,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:31,457 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:31,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:31,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:31,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:31,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:31,461 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:31,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:31,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:31,462 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:31,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:31,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:31,465 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:25:31,483 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:31,483 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:31,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:31,484 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:31,485 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:31,485 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:31,485 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:31,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:31,486 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:31,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:31,487 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:31,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:31,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:31,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:31,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:31,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:31,490 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:31,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:31,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:31,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:31,491 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:31,491 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:25:31,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:31,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:25:31,491 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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2018-09-20 13:25:31,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:31,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:31,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:31,577 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:31,578 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:31,579 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:31,933 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c914799/a65ba49cc14f4b62b1bc9729334a2717/FLAG6dc22578d [2018-09-20 13:25:32,064 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:32,064 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:32,072 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c914799/a65ba49cc14f4b62b1bc9729334a2717/FLAG6dc22578d [2018-09-20 13:25:32,088 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c914799/a65ba49cc14f4b62b1bc9729334a2717 [2018-09-20 13:25:32,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:32,101 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:32,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:32,111 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:32,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7714f3a7 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 13:25:32,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,129 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:32,342 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,365 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:32,379 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32 WrapperNode [2018-09-20 13:25:32,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:32,399 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:32,415 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 13:25:32,416 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 13:25:32,425 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 13:25:32,426 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 13:25:32,434 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 13:25:32,437 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 13:25:32,438 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 13:25:32,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:32,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:32,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:32,447 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 13:25:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:32,937 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:32,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32 BoogieIcfgContainer [2018-09-20 13:25:32,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:32,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:32,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:32,950 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:32,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:32" (1/3) ... [2018-09-20 13:25:32,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4f136d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,955 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 13:25:32,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4f136d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32" (3/3) ... [2018-09-20 13:25:32,962 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:32,985 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:33,004 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:33,085 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:33,088 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:33,088 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:33,088 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:33,088 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:33,088 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:33,089 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:33,089 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:33,089 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-20 13:25:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 13:25:33,146 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:33,147 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:33,152 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:33,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-09-20 13:25:33,161 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:25:33,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:25:33,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:33,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,303 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:25:33,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:25:33,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:25:33,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:25:33,328 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:25:33,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32" (3/4) ... [2018-09-20 13:25:33,333 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:25:33,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:25:33,334 INFO L168 Benchmark]: Toolchain (without parser) took 1238.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -96.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,337 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 13:25:33,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.65 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 13:25:33,339 INFO L168 Benchmark]: Boogie Preprocessor took 42.69 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 13:25:33,340 INFO L168 Benchmark]: RCFGBuilder took 498.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,341 INFO L168 Benchmark]: TraceAbstraction took 382.68 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: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,343 INFO L168 Benchmark]: Witness Printer took 6.21 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 13:25:33,348 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 294.65 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 42.69 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 498.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 382.68 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: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) 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] [L19] EXPR f(IN) VAL [f(IN)=1, IN=2] [L19] CALL, EXPR fp(IN) 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] [L19] EXPR fp(IN) VAL [f(IN)=1, fp(IN)=0, IN=2] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=2] [L28] __VERIFIER_error() VAL [IN=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 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=22occurred 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, 16 NumberOfCodeBlocks, 16 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 13:25:35,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:35,778 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:35,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:35,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:35,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:35,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:35,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:35,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:35,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:35,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:35,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:35,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:35,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:35,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:35,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:35,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:35,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:35,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:35,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:35,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:35,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:35,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:35,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:35,831 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:35,833 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:35,834 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:35,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:35,836 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:35,837 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:35,837 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:35,838 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:35,839 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:35,839 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:35,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:35,841 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:35,841 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:25:35,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:35,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:35,863 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:35,864 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:35,864 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:35,865 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:35,865 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:35,865 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:35,865 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:35,867 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:35,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:35,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:35,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:35,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:35,868 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:25:35,869 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:25:35,869 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:35,869 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:35,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:35,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:35,870 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:35,870 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:35,870 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:35,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:35,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:35,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:35,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:35,873 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:25:35,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:35,874 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:25:35,874 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:25:35,875 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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2018-09-20 13:25:35,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:35,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:35,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:35,948 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:35,948 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:35,949 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:36,303 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1b4771/b91dd7f476bd439797c6a2a392c01cfd/FLAG38a66dde3 [2018-09-20 13:25:36,432 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:36,432 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:36,438 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1b4771/b91dd7f476bd439797c6a2a392c01cfd/FLAG38a66dde3 [2018-09-20 13:25:36,455 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1b4771/b91dd7f476bd439797c6a2a392c01cfd [2018-09-20 13:25:36,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:36,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:36,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:36,471 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:36,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,475 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 13:25:36,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,488 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:36,701 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,723 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:36,739 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36 WrapperNode [2018-09-20 13:25:36,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:36,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:36,784 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 13:25:36,785 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 13:25:36,796 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 13:25:36,796 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 13:25:36,800 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 13:25:36,802 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 13:25:36,804 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 13:25:36,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:36,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:36,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:36,809 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 13:25:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:42,965 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:42,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42 BoogieIcfgContainer [2018-09-20 13:25:42,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:42,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:42,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:42,972 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:42,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:36" (1/3) ... [2018-09-20 13:25:42,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309c955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:42, skipping insertion in model container [2018-09-20 13:25:42,974 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 13:25:42,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309c955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:42, skipping insertion in model container [2018-09-20 13:25:42,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42" (3/3) ... [2018-09-20 13:25:42,981 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7_false-unreach-call_true-termination.i [2018-09-20 13:25:42,993 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:43,007 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:43,076 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:43,077 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:43,077 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:43,077 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:43,077 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:43,078 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:43,078 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:43,079 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:43,079 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-20 13:25:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 13:25:43,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:43,123 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:43,128 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:43,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-09-20 13:25:43,142 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:25:43,143 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 13:25:43,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:26:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:26,948 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:26:26,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:26 BoogieIcfgContainer [2018-09-20 13:26:26,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:26:26,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:26:26,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:26:26,984 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:26:26,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42" (3/4) ... [2018-09-20 13:26:26,988 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:26:27,040 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:26:27,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:26:27,042 INFO L168 Benchmark]: Toolchain (without parser) took 50581.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -110.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:27,044 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 13:26:27,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.76 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:27,045 INFO L168 Benchmark]: Boogie Preprocessor took 39.78 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:27,046 INFO L168 Benchmark]: RCFGBuilder took 6159.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -142.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:27,047 INFO L168 Benchmark]: TraceAbstraction took 44015.20 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:27,048 INFO L168 Benchmark]: Witness Printer took 57.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:27,053 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 302.76 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.78 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6159.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -142.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 44015.20 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Witness Printer took 57.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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)=-0.7407209277153015] [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)=-0.7407209277153015, \result=-0.6748684644699097, x=-0.7407209277153015] [L19] EXPR f(IN) VAL [f(IN)=-0.6748684644699097, IN=-0.7407209277153015] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.7407209277153015] [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)=-0.7407209277153015, \result=0.7384388446807861, x=-0.7407209277153015] [L19] EXPR fp(IN) VAL [f(IN)=-0.6748684644699097, fp(IN)=0.7384388446807861, IN=-0.7407209277153015] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.7407209277153015, x=0.17319154739379883] [L28] __VERIFIER_error() VAL [IN=-0.7407209277153015, x=0.17319154739379883] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 43.9s 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=22occurred 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, 40.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 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...