./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70fe3c899c400d059184c32a286d7d2375d5f495 ......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70fe3c899c400d059184c32a286d7d2375d5f495 ............................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:31:38,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:31:38,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:31:38,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:31:38,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:31:38,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:31:38,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:31:38,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:31:38,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:31:38,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:31:38,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:31:38,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:31:38,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:31:38,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:31:38,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:31:38,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:31:38,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:31:38,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:31:38,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:31:38,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:31:38,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:31:38,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:31:38,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:31:38,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:31:38,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:31:38,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:31:38,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:31:38,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:31:38,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:31:38,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:31:38,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:31:38,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:31:38,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:31:38,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:31:38,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:31:38,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:31:38,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:31:38,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:31:38,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:31:38,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:31:38,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:31:38,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:31:38,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:31:38,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:31:38,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:31:38,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:31:38,910 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:31:38,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:31:38,911 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:31:38,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:31:38,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:31:38,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:31:38,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:31:38,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:31:38,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:31:38,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:31:38,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:31:38,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:31:38,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:31:38,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:31:38,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:31:38,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:31:38,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:31:38,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:31:38,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:31:38,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:31:38,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:31:38,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:31:38,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:31:38,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:31:38,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2019-11-27 23:31:39,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:31:39,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:31:39,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:31:39,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:31:39,229 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:31:39,231 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-27 23:31:39,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40208261/eccf420adb9945e1acf6b88022e67253/FLAG84872f7e5 [2019-11-27 23:31:39,757 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:31:39,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-27 23:31:39,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40208261/eccf420adb9945e1acf6b88022e67253/FLAG84872f7e5 [2019-11-27 23:31:40,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d40208261/eccf420adb9945e1acf6b88022e67253 [2019-11-27 23:31:40,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:31:40,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:31:40,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:31:40,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:31:40,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:31:40,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1192613d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40, skipping insertion in model container [2019-11-27 23:31:40,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:31:40,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:31:40,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:31:40,377 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:31:40,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:31:40,422 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:31:40,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40 WrapperNode [2019-11-27 23:31:40,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:31:40,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:31:40,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:31:40,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:31:40,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:31:40,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:31:40,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:31:40,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:31:40,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (1/1) ... [2019-11-27 23:31:40,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:31:40,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:31:40,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:31:40,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:31:40,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (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 [2019-11-27 23:31:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:31:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:31:40,719 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:31:40,720 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 23:31:40,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:40 BoogieIcfgContainer [2019-11-27 23:31:40,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:31:40,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:31:40,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:31:40,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:31:40,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:40" (1/3) ... [2019-11-27 23:31:40,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb86c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:40, skipping insertion in model container [2019-11-27 23:31:40,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:40" (2/3) ... [2019-11-27 23:31:40,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb86c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:40, skipping insertion in model container [2019-11-27 23:31:40,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:40" (3/3) ... [2019-11-27 23:31:40,729 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2019-11-27 23:31:40,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:31:40,744 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:31:40,756 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:31:40,779 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:31:40,780 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:31:40,780 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:31:40,780 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:31:40,780 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:31:40,780 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:31:40,781 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:31:40,781 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:31:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-27 23:31:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 23:31:40,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:31:40,800 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 23:31:40,800 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:31:40,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:31:40,805 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-11-27 23:31:40,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:31:40,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293994814] [2019-11-27 23:31:40,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:31:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:31:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:31:40,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:31:40,911 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:31:40,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:31:40 BoogieIcfgContainer [2019-11-27 23:31:40,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:31:40,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:31:40,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:31:40,926 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:31:40,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:40" (3/4) ... [2019-11-27 23:31:40,929 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:31:40,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:31:40,932 INFO L168 Benchmark]: Toolchain (without parser) took 785.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:31:40,933 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:31:40,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.83 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:31:40,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:31:40,936 INFO L168 Benchmark]: Boogie Preprocessor took 24.54 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:31:40,937 INFO L168 Benchmark]: RCFGBuilder took 186.18 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:31:40,938 INFO L168 Benchmark]: TraceAbstraction took 202.61 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:31:40,938 INFO L168 Benchmark]: Witness Printer took 3.67 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. [2019-11-27 23:31:40,944 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.83 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.54 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.18 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 202.61 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.67 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 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:31:42,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:31:42,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:31:42,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:31:42,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:31:42,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:31:42,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:31:42,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:31:42,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:31:42,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:31:42,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:31:42,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:31:42,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:31:42,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:31:42,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:31:42,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:31:42,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:31:42,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:31:42,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:31:42,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:31:42,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:31:43,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:31:43,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:31:43,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:31:43,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:31:43,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:31:43,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:31:43,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:31:43,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:31:43,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:31:43,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:31:43,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:31:43,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:31:43,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:31:43,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:31:43,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:31:43,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:31:43,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:31:43,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:31:43,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:31:43,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:31:43,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:31:43,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:31:43,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:31:43,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:31:43,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:31:43,042 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:31:43,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:31:43,042 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:31:43,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:31:43,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:31:43,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:31:43,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:31:43,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:31:43,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:31:43,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:31:43,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:31:43,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:31:43,045 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:31:43,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:31:43,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:31:43,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:31:43,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:31:43,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:31:43,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:31:43,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:31:43,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:31:43,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:31:43,048 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:31:43,048 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:31:43,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:31:43,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:31:43,049 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2019-11-27 23:31:43,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:31:43,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:31:43,367 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:31:43,369 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:31:43,370 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:31:43,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-27 23:31:43,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4bbe430/a2c23dd0c14f44abab0d7d6c0985e0c4/FLAGc21d1a790 [2019-11-27 23:31:43,951 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:31:43,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-27 23:31:43,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4bbe430/a2c23dd0c14f44abab0d7d6c0985e0c4/FLAGc21d1a790 [2019-11-27 23:31:44,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4bbe430/a2c23dd0c14f44abab0d7d6c0985e0c4 [2019-11-27 23:31:44,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:31:44,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:31:44,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:31:44,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:31:44,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:31:44,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b606967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44, skipping insertion in model container [2019-11-27 23:31:44,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:31:44,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:31:44,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:31:44,649 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:31:44,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:31:44,704 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:31:44,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44 WrapperNode [2019-11-27 23:31:44,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:31:44,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:31:44,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:31:44,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:31:44,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:31:44,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:31:44,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:31:44,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:31:44,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (1/1) ... [2019-11-27 23:31:44,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:31:44,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:31:44,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:31:44,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:31:44,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (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 [2019-11-27 23:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:31:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:31:51,749 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:31:51,750 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 23:31:51,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:51 BoogieIcfgContainer [2019-11-27 23:31:51,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:31:51,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:31:51,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:31:51,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:31:51,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:44" (1/3) ... [2019-11-27 23:31:51,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ee5f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:51, skipping insertion in model container [2019-11-27 23:31:51,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:44" (2/3) ... [2019-11-27 23:31:51,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ee5f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:51, skipping insertion in model container [2019-11-27 23:31:51,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:51" (3/3) ... [2019-11-27 23:31:51,762 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2019-11-27 23:31:51,774 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:31:51,782 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:31:51,797 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:31:51,825 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:31:51,825 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:31:51,825 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:31:51,826 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:31:51,826 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:31:51,826 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:31:51,827 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:31:51,827 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:31:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-27 23:31:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-27 23:31:51,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:31:51,850 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-27 23:31:51,850 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:31:51,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:31:51,856 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-27 23:31:51,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:31:51,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455398926] [2019-11-27 23:31:51,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:32:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:32:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:32:27,634 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-27 23:32:27,635 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:32:27,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:32:27,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:32:27 BoogieIcfgContainer [2019-11-27 23:32:27,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:32:27,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:32:27,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:32:27,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:32:27,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:51" (3/4) ... [2019-11-27 23:32:27,862 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:32:27,904 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:32:27,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:32:27,908 INFO L168 Benchmark]: Toolchain (without parser) took 43527.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,909 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:32:27,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,911 INFO L168 Benchmark]: Boogie Preprocessor took 31.18 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,912 INFO L168 Benchmark]: RCFGBuilder took 6918.40 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,913 INFO L168 Benchmark]: TraceAbstraction took 36106.02 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,914 INFO L168 Benchmark]: Witness Printer took 44.85 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:32:27,920 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.18 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6918.40 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36106.02 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.85 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: 6.6 MB). Peak memory consumption was 6.6 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(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 36.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 20.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...