/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/newton_3_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_3_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 1a235e961590504bf325ed48e961fbf72a0d83a1 ........................................................................................................................................................................................................................................................... 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_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 1a235e961590504bf325ed48e961fbf72a0d83a1 .............................................................................................................................................................................................................................................................. 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 13:25:31,525 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:31,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:31,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:31,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:31,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:31,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:31,551 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:31,553 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:31,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:31,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:31,555 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:31,556 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:31,557 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:31,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:31,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:31,561 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:31,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:31,565 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:31,567 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:31,568 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:31,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:31,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:31,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:31,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:31,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:31,576 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:31,577 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:31,578 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:31,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:31,579 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:31,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:31,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:31,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:31,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:31,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:31,584 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:25:31,599 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:31,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:31,601 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:31,601 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:31,602 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:31,602 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:31,602 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:31,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:31,602 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:31,603 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:25:31,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:31,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:31,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:31,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:31,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:31,605 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:31,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:31,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:31,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:31,606 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:31,606 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:31,606 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:31,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:31,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:31,608 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:31,608 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:31,608 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:25:31,608 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:31,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:25:31,609 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 -> 1a235e961590504bf325ed48e961fbf72a0d83a1 [2018-09-20 13:25:31,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:31,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:31,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:31,690 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:31,691 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:31,692 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:32,068 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15bf7010a/e9fd87c14c764c6094484c7fdf90cff6/FLAGcc179acfb [2018-09-20 13:25:32,230 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:32,231 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:32,237 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15bf7010a/e9fd87c14c764c6094484c7fdf90cff6/FLAGcc179acfb [2018-09-20 13:25:32,253 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15bf7010a/e9fd87c14c764c6094484c7fdf90cff6 [2018-09-20 13:25:32,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:32,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:32,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:32,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:32,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0e4a01 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 13:25:32,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,286 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:32,518 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,540 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:32,557 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32 WrapperNode [2018-09-20 13:25:32,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:32,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:32,595 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 13:25:32,595 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 13:25:32,605 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 13:25:32,606 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 13:25:32,609 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 13:25:32,612 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 13:25:32,613 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 13:25:32,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:32,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:32,626 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:32,627 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 13:25:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:32,985 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:32,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32 BoogieIcfgContainer [2018-09-20 13:25:32,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:32,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:32,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:32,993 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:32,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:32" (1/3) ... [2018-09-20 13:25:32,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb67bfe 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 13:25:32,998 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 13:25:32,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb67bfe 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 13:25:32,998 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 13:25:33,006 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:33,017 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:33,025 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:33,076 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:33,077 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:33,078 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:33,078 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:33,078 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:33,078 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:33,078 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:33,078 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:33,079 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-20 13:25:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 13:25:33,108 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:33,109 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 13:25:33,111 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:33,119 INFO L82 PathProgramCache]: Analyzing trace with hash 122785517, now seen corresponding path program 1 times [2018-09-20 13:25:33,121 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:25:33,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:25:33,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:33,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,243 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:25:33,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:25:33,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:25:33,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:25:33,274 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:25:33,275 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 13:25:33,280 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:25:33,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:25:33,281 INFO L168 Benchmark]: Toolchain (without parser) took 1023.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,284 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 13:25:33,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.79 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,286 INFO L168 Benchmark]: Boogie Preprocessor took 45.21 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,287 INFO L168 Benchmark]: RCFGBuilder took 362.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,289 INFO L168 Benchmark]: TraceAbstraction took 286.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,289 INFO L168 Benchmark]: Witness Printer took 6.11 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 13:25:33,294 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 314.79 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.21 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 362.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 286.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.11 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 13:25:35,831 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:35,833 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:35,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:35,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:35,848 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:35,849 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:35,851 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:35,853 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:35,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:35,855 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:35,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:35,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:35,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:35,860 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:35,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:35,862 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:35,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:35,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:35,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:35,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:35,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:35,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:35,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:35,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:35,876 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:35,877 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:35,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:35,879 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:35,881 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:35,881 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:35,882 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:35,882 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:35,882 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:35,884 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:35,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:35,885 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:25:35,900 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:35,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:35,902 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:35,902 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:35,903 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:35,903 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:35,903 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:35,903 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:35,904 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:35,904 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:35,904 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:35,904 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:35,904 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:35,905 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:35,905 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:25:35,905 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:25:35,905 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:35,905 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:35,907 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:35,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:35,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:35,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:35,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:35,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:35,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:35,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:35,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:35,910 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:25:35,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:35,910 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:25:35,910 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:25:35,910 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 -> 1a235e961590504bf325ed48e961fbf72a0d83a1 [2018-09-20 13:25:35,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:35,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:35,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:35,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:35,981 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:35,982 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:36,326 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cadd3f83/f45db5ddef204571b7a3bd14ecad1231/FLAG150544e65 [2018-09-20 13:25:36,448 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:36,449 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:36,455 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cadd3f83/f45db5ddef204571b7a3bd14ecad1231/FLAG150544e65 [2018-09-20 13:25:36,470 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cadd3f83/f45db5ddef204571b7a3bd14ecad1231 [2018-09-20 13:25:36,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:36,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:36,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:36,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:36,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,495 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 13:25:36,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,508 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:36,735 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,760 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:36,783 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36 WrapperNode [2018-09-20 13:25:36,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:36,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:36,831 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 13:25:36,832 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 13:25:36,844 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 13:25:36,846 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 13:25:36,858 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 13:25:36,860 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 13:25:36,867 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 13:25:36,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:36,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:36,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:36,872 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 13:25:36,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:36,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:36,950 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:36,951 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:36,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:36,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:44,085 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:44,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:44 BoogieIcfgContainer [2018-09-20 13:25:44,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:44,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:44,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:44,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:44,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:36" (1/3) ... [2018-09-20 13:25:44,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb22f1c 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 13:25:44,093 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 13:25:44,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb22f1c 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 13:25:44,095 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 13:25:44,097 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7_false-unreach-call_true-termination.i [2018-09-20 13:25:44,108 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:44,118 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:44,171 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:44,172 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:44,172 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:44,172 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:44,172 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:44,173 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:44,173 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:44,174 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:44,174 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-09-20 13:25:44,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 13:25:44,204 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:44,205 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 13:25:44,208 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash 122785517, now seen corresponding path program 1 times [2018-09-20 13:25:44,220 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:25:44,221 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 13:25:44,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:29:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:29:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:29:41,203 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:29:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:41 BoogieIcfgContainer [2018-09-20 13:29:41,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:29:41,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:29:41,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:29:41,245 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:29:41,246 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 13:29:41,249 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:29:41,315 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:29:41,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:29:41,317 INFO L168 Benchmark]: Toolchain (without parser) took 244838.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -116.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:29:41,319 INFO L168 Benchmark]: CDTParser took 0.18 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 13:29:41,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 13:29:41,320 INFO L168 Benchmark]: Boogie Preprocessor took 54.79 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 13:29:41,321 INFO L168 Benchmark]: RCFGBuilder took 7216.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:29:41,322 INFO L168 Benchmark]: TraceAbstraction took 237156.39 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:29:41,323 INFO L168 Benchmark]: Witness Printer took 71.12 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:29:41,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 54.79 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 7216.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 237156.39 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 71.12 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: 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)=1.2432805299758911] [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)=1.2432805299758911, \result=0.9486472606658936, x=1.2432805299758911] [L19] EXPR f(IN) VAL [f(IN)=0.9486472606658936, IN=1.2432805299758911] [L19] CALL, EXPR fp(IN) VAL [\old(x)=1.2432805299758911] [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)=1.2432805299758911, \result=0.3318118453025818, x=1.2432805299758911] [L19] EXPR fp(IN) VAL [f(IN)=0.9486472606658936, fp(IN)=0.3318118453025818, IN=1.2432805299758911] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=-1.6157110929489136] [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)=-1.6157110929489136, \result=-1.0101959705352783, x=-1.6157110929489136] [L21] EXPR f(x) VAL [f(x)=-1.0101959705352783, IN=1.2432805299758911, x=-1.6157110929489136] [L21] CALL, EXPR fp(x) VAL [\old(x)=-1.6157110929489136] [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)=-1.6157110929489136, \result=0.0033986587077379227, x=-1.6157110929489136] [L21] EXPR fp(x) VAL [f(x)=-1.0101959705352783, fp(x)=0.0033986587077379227, IN=1.2432805299758911, x=-1.6157110929489136] [L21] x = x - f(x)/fp(x) [L23] CALL, EXPR f(x) VAL [\old(x)=295.6180114746094] [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)=295.6180114746094, \result=39164653338624, x=295.6180114746094] [L23] EXPR f(x) VAL [f(x)=39164653338624, IN=1.2432805299758911, x=295.6180114746094] [L23] CALL, EXPR fp(x) VAL [\old(x)=295.6180114746094] [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)=295.6180114746094, \result=927260737536, x=295.6180114746094] [L23] EXPR fp(x) VAL [f(x)=39164653338624, fp(x)=927260737536, IN=1.2432805299758911, x=295.6180114746094] [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=1.2432805299758911, x=253.38107299804688] [L28] __VERIFIER_error() VAL [IN=1.2432805299758911, x=253.38107299804688] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 237.0s 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, 222.6s 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...