/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/newton_3_8_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_3_8_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 2602ec85874add80e06b2692c2aa37caac725410 ........................................................................................................................................................................................................................................................... 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_3_8_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 2602ec85874add80e06b2692c2aa37caac725410 .............................................................................................................................................................................................................................................................. 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 13:25:31,492 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:31,494 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:31,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:31,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:31,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:31,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:31,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:31,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:31,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:31,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:31,526 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:31,528 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:31,529 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:31,531 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:31,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:31,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:31,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:31,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:31,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:31,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:31,543 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:31,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:31,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:31,546 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:31,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:31,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:31,551 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:31,552 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:31,553 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:31,553 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:31,554 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:31,555 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:31,555 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:31,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:31,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:31,558 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:25:31,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:31,575 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:31,576 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:31,577 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:31,578 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:31,578 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:31,578 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:31,578 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:31,578 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:31,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:25:31,579 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:31,579 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:31,579 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:31,580 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:31,580 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:31,580 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:31,581 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:31,581 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:31,581 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:31,581 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:31,582 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:31,582 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:31,583 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:31,583 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:31,583 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:31,583 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:31,585 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:25:31,585 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:31,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:25:31,585 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 -> 2602ec85874add80e06b2692c2aa37caac725410 [2018-09-20 13:25:31,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:31,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:31,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:31,696 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:31,697 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:31,698 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:32,056 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2e6ba26/b236d7769b0c490790776c97ddd6ba38/FLAGe14d15b33 [2018-09-20 13:25:32,231 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:32,231 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:32,238 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2e6ba26/b236d7769b0c490790776c97ddd6ba38/FLAGe14d15b33 [2018-09-20 13:25:32,254 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2e6ba26/b236d7769b0c490790776c97ddd6ba38 [2018-09-20 13:25:32,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:32,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:32,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:32,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:32,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6b6dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,290 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:32,497 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,515 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:32,525 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32 WrapperNode [2018-09-20 13:25:32,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:32,540 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:32,557 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 13:25:32,557 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 13:25:32,564 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 13:25:32,565 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 13:25:32,568 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 13:25:32,570 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 13:25:32,571 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 13:25:32,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:32,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:32,575 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:32,576 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 13:25:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:32,926 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:32,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32 BoogieIcfgContainer [2018-09-20 13:25:32,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:32,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:32,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:32,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:32,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:32" (1/3) ... [2018-09-20 13:25:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3c133d 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 13:25:32,934 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 13:25:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3c133d 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 13:25:32,935 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 13:25:32,937 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:32,948 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:32,956 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:33,006 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:33,007 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:33,007 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:33,007 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:33,007 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:33,007 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:33,008 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:33,008 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:33,008 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-20 13:25:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 13:25:33,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:33,032 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:33,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:33,041 INFO L82 PathProgramCache]: Analyzing trace with hash 122785517, now seen corresponding path program 1 times [2018-09-20 13:25:33,044 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:25:33,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:25:33,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:33,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,185 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:25:33,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:25:33,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:25:33,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:25:33,214 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:25:33,214 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 13:25:33,219 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:25:33,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:25:33,220 INFO L168 Benchmark]: Toolchain (without parser) took 960.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,223 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 13:25:33,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.58 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,225 INFO L168 Benchmark]: Boogie Preprocessor took 34.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,226 INFO L168 Benchmark]: RCFGBuilder took 352.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,228 INFO L168 Benchmark]: TraceAbstraction took 284.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,229 INFO L168 Benchmark]: Witness Printer took 6.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,235 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 275.58 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 352.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 23. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=8] [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)=8, x=8] [L19] EXPR f(IN) VAL [f(IN)=5, IN=8] [L19] CALL, EXPR fp(IN) VAL [\old(x)=8] [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)=8, x=8] [L19] EXPR fp(IN) VAL [f(IN)=5, fp(IN)=2, IN=8] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=3] [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)=3, x=3] [L21] EXPR f(x) VAL [f(x)=4, IN=8, x=3] [L21] CALL, EXPR fp(x) VAL [\old(x)=3] [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)=3, x=3] [L21] EXPR fp(x) VAL [f(x)=4, fp(x)=0, IN=8, x=3] [L21] x = x - f(x)/fp(x) [L23] CALL, EXPR f(x) VAL [\old(x)=6] [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)=6, x=6] [L23] EXPR f(x) VAL [f(x)=1, IN=8, x=6] [L23] CALL, EXPR fp(x) VAL [\old(x)=6] [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)=6, x=6] [L23] EXPR fp(x) VAL [f(x)=1, fp(x)=7, IN=8, x=6] [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=8] [L28] __VERIFIER_error() VAL [IN=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 34 NumberOfCodeBlocks, 34 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 13:25:35,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:35,604 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:35,619 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:35,619 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:35,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:35,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:35,624 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:35,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:35,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:35,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:35,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:35,633 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:35,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:35,644 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:35,647 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:35,648 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:35,650 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:35,655 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:35,657 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:35,658 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:35,660 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:35,662 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:35,662 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:35,662 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:35,664 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:35,665 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:35,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:35,666 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:35,668 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:35,668 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:35,668 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:35,669 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:35,669 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:35,671 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:35,671 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:35,672 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:25:35,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:35,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:35,689 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:35,689 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:35,690 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:35,690 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:35,690 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:35,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:35,690 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:35,691 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:35,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:35,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:35,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:35,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:35,693 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:25:35,693 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:25:35,693 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:35,693 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:35,693 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:35,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:35,694 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:35,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:35,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:35,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:35,695 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:35,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:35,696 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:35,696 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:25:35,696 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:35,697 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:25:35,697 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:25:35,697 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 -> 2602ec85874add80e06b2692c2aa37caac725410 [2018-09-20 13:25:35,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:35,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:35,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:35,790 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:35,791 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:35,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:36,140 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72251cbb/5e88c358746b4279b6c529fe77f8fdaf/FLAG57fc0f01a [2018-09-20 13:25:36,339 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:36,340 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:36,347 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72251cbb/5e88c358746b4279b6c529fe77f8fdaf/FLAG57fc0f01a [2018-09-20 13:25:36,365 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72251cbb/5e88c358746b4279b6c529fe77f8fdaf [2018-09-20 13:25:36,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:36,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:36,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:36,387 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:36,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdb29ad 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 13:25:36,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,407 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:36,673 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,697 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:36,714 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36 WrapperNode [2018-09-20 13:25:36,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:36,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:36,756 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 13:25:36,757 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 13:25:36,768 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 13:25:36,769 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 13:25:36,781 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 13:25:36,786 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 13:25:36,789 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 13:25:36,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:36,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:36,801 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:36,802 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 13:25:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:36,884 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 13:25:36,885 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 13:25:44,671 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:44,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:44 BoogieIcfgContainer [2018-09-20 13:25:44,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:44,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:44,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:44,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:44,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:36" (1/3) ... [2018-09-20 13:25:44,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642ca12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:44, skipping insertion in model container [2018-09-20 13:25:44,679 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 13:25:44,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642ca12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:44, skipping insertion in model container [2018-09-20 13:25:44,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:44" (3/3) ... [2018-09-20 13:25:44,683 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_8_false-unreach-call_true-termination.i [2018-09-20 13:25:44,693 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:44,703 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:44,758 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:44,759 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:44,759 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:44,760 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:44,760 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:44,760 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:44,761 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:44,761 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:44,762 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-20 13:25:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 13:25:44,793 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:44,795 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:44,798 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:44,804 INFO L82 PathProgramCache]: Analyzing trace with hash 122785517, now seen corresponding path program 1 times [2018-09-20 13:25:44,812 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:25:44,814 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 13:25:44,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:33:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:33:39,959 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:33:39,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:33:39 BoogieIcfgContainer [2018-09-20 13:33:40,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:33:40,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:33:40,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:33:40,000 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:33:40,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:44" (3/4) ... [2018-09-20 13:33:40,004 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:33:40,077 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:33:40,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:33:40,082 INFO L168 Benchmark]: Toolchain (without parser) took 483710.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:33:40,084 INFO L168 Benchmark]: CDTParser took 0.22 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 13:33:40,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:33:40,086 INFO L168 Benchmark]: Boogie Preprocessor took 58.89 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:33:40,087 INFO L168 Benchmark]: RCFGBuilder took 7874.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:33:40,088 INFO L168 Benchmark]: TraceAbstraction took 475326.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:33:40,088 INFO L168 Benchmark]: Witness Printer took 80.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:33:40,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 360.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.89 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 7874.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 475326.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Witness Printer took 80.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-1.3123161792755127] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3123161792755127, \result=-0.9694082140922546, x=-1.3123161792755127] [L19] EXPR f(IN) VAL [f(IN)=-0.9694082140922546, IN=-1.3123161792755127] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.3123161792755127] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3123161792755127, \result=0.26958563923835754, x=-1.3123161792755127] [L19] EXPR fp(IN) VAL [f(IN)=-0.9694082140922546, fp(IN)=0.26958563923835754, IN=-1.3123161792755127] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=2.2836031913757324] [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)=2.2836031913757324, \result=0.8806008100509644, x=2.2836031913757324] [L21] EXPR f(x) VAL [f(x)=0.8806008100509644, IN=-1.3123161792755127, x=2.2836031913757324] [L21] CALL, EXPR fp(x) VAL [\old(x)=2.2836031913757324] [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)=2.2836031913757324, \result=-0.2773476839065552, x=2.2836031913757324] [L21] EXPR fp(x) VAL [f(x)=0.8806008100509644, fp(x)=-0.2773476839065552, IN=-1.3123161792755127, x=2.2836031913757324] [L21] x = x - f(x)/fp(x) [L23] CALL, EXPR f(x) VAL [\old(x)=5.458682060241699] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=5.458682060241699, \result=47.392189025878906, x=5.458682060241699] [L23] EXPR f(x) VAL [f(x)=47.392189025878906, IN=-1.3123161792755127, x=5.458682060241699] [L23] CALL, EXPR fp(x) VAL [\old(x)=5.458682060241699] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=5.458682060241699, \result=59.84080123901367, x=5.458682060241699] [L23] EXPR fp(x) VAL [f(x)=47.392189025878906, fp(x)=59.84080123901367, IN=-1.3123161792755127, x=5.458682060241699] [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.3123161792755127, x=4.66671085357666] [L28] __VERIFIER_error() VAL [IN=-1.3123161792755127, x=4.66671085357666] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 475.2s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 12.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 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...