./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_2_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:34:30,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:34:30,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:34:30,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:34:30,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:34:30,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:34:30,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:34:30,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:34:30,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:34:30,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:34:30,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:34:30,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:34:30,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:34:30,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:34:30,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:34:30,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:34:30,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:34:30,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:34:30,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:34:30,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:34:30,333 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:34:30,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:34:30,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:34:30,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:34:30,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:34:30,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:34:30,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:34:30,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:34:30,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:34:30,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:34:30,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:34:30,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:34:30,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:34:30,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:34:30,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:34:30,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:34:30,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:34:30,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:34:30,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:34:30,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:34:30,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:34:30,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:34:30,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:34:30,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:34:30,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:34:30,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:34:30,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:34:30,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:34:30,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:34:30,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:34:30,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:34:30,390 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:34:30,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:34:30,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:34:30,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:34:30,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:34:30,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:34:30,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:34:30,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:34:30,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:34:30,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:34:30,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:34:30,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:34:30,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:34:30,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:34:30,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:34:30,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:34:30,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:34:30,395 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:34:30,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:34:30,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:34:30,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2022-07-22 13:34:30,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:34:30,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:34:30,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:34:30,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:34:30,646 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:34:30,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-22 13:34:30,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c14b182/cf6f4914e0ea45059c462b82ffaa60d4/FLAGdde88f63f [2022-07-22 13:34:31,086 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:34:31,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-22 13:34:31,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c14b182/cf6f4914e0ea45059c462b82ffaa60d4/FLAGdde88f63f [2022-07-22 13:34:31,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c14b182/cf6f4914e0ea45059c462b82ffaa60d4 [2022-07-22 13:34:31,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:34:31,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:34:31,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:34:31,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:34:31,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:34:31,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c50f4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31, skipping insertion in model container [2022-07-22 13:34:31,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:34:31,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:34:31,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2022-07-22 13:34:31,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:34:31,747 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:34:31,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2022-07-22 13:34:31,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:34:31,777 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:34:31,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31 WrapperNode [2022-07-22 13:34:31,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:34:31,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:34:31,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:34:31,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:34:31,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,810 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-07-22 13:34:31,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:34:31,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:34:31,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:34:31,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:34:31,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:34:31,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:34:31,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:34:31,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:34:31,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (1/1) ... [2022-07-22 13:34:31,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:34:31,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:34:31,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:34:31,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:34:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:34:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-22 13:34:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-22 13:34:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-22 13:34:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-22 13:34:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:34:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:34:31,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:34:31,948 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:34:31,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:34:32,027 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:34:32,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:34:32,032 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:34:32,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:32 BoogieIcfgContainer [2022-07-22 13:34:32,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:34:32,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:34:32,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:34:32,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:34:32,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:34:31" (1/3) ... [2022-07-22 13:34:32,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f69864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:34:32, skipping insertion in model container [2022-07-22 13:34:32,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:31" (2/3) ... [2022-07-22 13:34:32,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f69864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:34:32, skipping insertion in model container [2022-07-22 13:34:32,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:32" (3/3) ... [2022-07-22 13:34:32,041 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2022-07-22 13:34:32,054 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:34:32,054 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:34:32,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:34:32,102 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e60ae09, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@56536a51 [2022-07-22 13:34:32,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:34:32,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 13:34:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 13:34:32,113 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:34:32,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:34:32,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:34:32,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:34:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-22 13:34:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:34:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959170464] [2022-07-22 13:34:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:34:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:34:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 13:34:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 13:34:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 13:34:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 13:34:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:32,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 13:34:32,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 13:34:32,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959170464] [2022-07-22 13:34:32,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959170464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:34:32,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:34:32,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:34:32,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632107094] [2022-07-22 13:34:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:34:32,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:34:32,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 13:34:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:34:32,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:34:32,355 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-22 13:34:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:34:32,372 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-22 13:34:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:34:32,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-22 13:34:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:34:32,381 INFO L225 Difference]: With dead ends: 43 [2022-07-22 13:34:32,381 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 13:34:32,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:34:32,388 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:34:32,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:34:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 13:34:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-22 13:34:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 13:34:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-22 13:34:32,429 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-22 13:34:32,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:34:32,429 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-22 13:34:32,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-22 13:34:32,430 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-22 13:34:32,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 13:34:32,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:34:32,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:34:32,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:34:32,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:34:32,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:34:32,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-22 13:34:32,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:34:32,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336537431] [2022-07-22 13:34:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:34:32,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:34:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:34:32,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:34:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:34:32,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:34:32,513 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:34:32,517 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:34:32,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 13:34:32,524 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:34:32,528 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:34:32,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:34:32 BoogieIcfgContainer [2022-07-22 13:34:32,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:34:32,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:34:32,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:34:32,562 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:34:32,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:32" (3/4) ... [2022-07-22 13:34:32,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:34:32,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:34:32,567 INFO L158 Benchmark]: Toolchain (without parser) took 1036.04ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 52.7MB in the end (delta: 408.0kB). Peak memory consumption was 258.7kB. Max. memory is 16.1GB. [2022-07-22 13:34:32,567 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:32,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.90ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 65.1MB in the end (delta: -12.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-07-22 13:34:32,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 63.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:34:32,571 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 62.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:32,574 INFO L158 Benchmark]: RCFGBuilder took 197.16ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 53.8MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 13:34:32,575 INFO L158 Benchmark]: TraceAbstraction took 525.18ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 53.1MB in the end (delta: 304.6kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2022-07-22 13:34:32,577 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 88.1MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:32,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.90ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 65.1MB in the end (delta: -12.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 63.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 62.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 197.16ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 53.8MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 525.18ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 53.1MB in the end (delta: 304.6kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 88.1MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=49] [L29] 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)=49, x=49] [L42] RET, EXPR f(IN) VAL [f(IN)=50, IN=49] [L42] CALL, EXPR fp(IN) VAL [\old(x)=49] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) VAL [f(IN)=50, fp(IN)=53, IN=49] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=51] [L29] 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)=51, x=51] [L44] RET, EXPR f(x) VAL [f(x)=52, IN=49, x=51] [L44] CALL, EXPR fp(x) VAL [\old(x)=51] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L44] RET, EXPR fp(x) VAL [f(x)=52, fp(x)=54, IN=49, x=51] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 [2022-07-22 13:34:32,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_2_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:34:34,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:34:34,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:34:34,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:34:34,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:34:34,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:34:34,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:34:34,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:34:34,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:34:34,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:34:34,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:34:34,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:34:34,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:34:34,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:34:34,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:34:34,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:34:34,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:34:34,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:34:34,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:34:34,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:34:34,641 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:34:34,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:34:34,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:34:34,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:34:34,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:34:34,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:34:34,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:34:34,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:34:34,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:34:34,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:34:34,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:34:34,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:34:34,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:34:34,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:34:34,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:34:34,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:34:34,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:34:34,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:34:34,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:34:34,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:34:34,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:34:34,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:34:34,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:34:34,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:34:34,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:34:34,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:34:34,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:34:34,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:34:34,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:34:34,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:34:34,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:34:34,716 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:34:34,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:34:34,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:34:34,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:34:34,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:34:34,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:34:34,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:34:34,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:34:34,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:34:34,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:34:34,719 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:34:34,719 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:34:34,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:34:34,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:34:34,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:34:34,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:34:34,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:34:34,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:34:34,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:34:34,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:34:34,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:34:34,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:34:34,721 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:34:34,721 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:34:34,722 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:34:34,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:34:34,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:34:34,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:34:34,723 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2022-07-22 13:34:35,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:34:35,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:34:35,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:34:35,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:34:35,036 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:34:35,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-22 13:34:35,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf9b08a/dff8fe1ae89d44728bf28bad23df0d48/FLAGd2630a357 [2022-07-22 13:34:35,530 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:34:35,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-22 13:34:35,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf9b08a/dff8fe1ae89d44728bf28bad23df0d48/FLAGd2630a357 [2022-07-22 13:34:35,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf9b08a/dff8fe1ae89d44728bf28bad23df0d48 [2022-07-22 13:34:35,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:34:35,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:34:35,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:34:35,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:34:35,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:34:35,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:34:35" (1/1) ... [2022-07-22 13:34:35,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be849d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:35, skipping insertion in model container [2022-07-22 13:34:35,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:34:35" (1/1) ... [2022-07-22 13:34:35,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:34:35,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:34:36,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2022-07-22 13:34:36,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:34:36,140 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:34:36,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2022-07-22 13:34:36,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:34:36,201 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:34:36,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36 WrapperNode [2022-07-22 13:34:36,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:34:36,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:34:36,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:34:36,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:34:36,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,239 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-07-22 13:34:36,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:34:36,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:34:36,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:34:36,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:34:36,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:34:36,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:34:36,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:34:36,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:34:36,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (1/1) ... [2022-07-22 13:34:36,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:34:36,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:34:36,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:34:36,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:34:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:34:36,367 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-22 13:34:36,367 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-22 13:34:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:34:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-22 13:34:36,368 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-22 13:34:36,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:34:36,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:34:36,433 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:34:36,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:34:44,875 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:34:44,880 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:34:44,880 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:34:44,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:44 BoogieIcfgContainer [2022-07-22 13:34:44,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:34:44,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:34:44,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:34:44,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:34:44,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:34:35" (1/3) ... [2022-07-22 13:34:44,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745cf8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:34:44, skipping insertion in model container [2022-07-22 13:34:44,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:34:36" (2/3) ... [2022-07-22 13:34:44,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745cf8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:34:44, skipping insertion in model container [2022-07-22 13:34:44,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:44" (3/3) ... [2022-07-22 13:34:44,889 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2022-07-22 13:34:44,901 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:34:44,901 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:34:44,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:34:44,957 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ee19e43, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f8ed45b [2022-07-22 13:34:44,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:34:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 13:34:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 13:34:44,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:34:44,968 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:34:44,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:34:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:34:44,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-22 13:34:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:34:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323253952] [2022-07-22 13:34:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:34:44,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:34:44,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:34:44,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:34:44,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 13:34:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:34:46,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 13:34:46,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:34:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 13:34:46,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:34:46,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:34:46,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323253952] [2022-07-22 13:34:46,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323253952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:34:47,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:34:47,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:34:47,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607358147] [2022-07-22 13:34:47,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:34:47,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:34:47,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:34:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:34:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:34:47,032 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-22 13:34:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:34:47,044 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-22 13:34:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:34:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-22 13:34:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:34:47,051 INFO L225 Difference]: With dead ends: 43 [2022-07-22 13:34:47,051 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 13:34:47,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:34:47,057 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:34:47,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:34:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 13:34:47,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-22 13:34:47,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 13:34:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-22 13:34:47,087 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-22 13:34:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:34:47,087 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-22 13:34:47,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-22 13:34:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-22 13:34:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 13:34:47,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:34:47,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:34:47,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 13:34:47,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:34:47,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:34:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:34:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-22 13:34:47,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:34:47,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668513427] [2022-07-22 13:34:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:34:47,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:34:47,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:34:47,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:34:47,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 13:35:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:35:58,273 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:36:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:36:52,971 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-22 13:36:52,971 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:36:52,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:36:53,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 13:36:53,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:36:53,184 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:36:53,189 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:36:53,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:36:53 BoogieIcfgContainer [2022-07-22 13:36:53,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:36:53,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:36:53,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:36:53,219 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:36:53,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:34:44" (3/4) ... [2022-07-22 13:36:53,221 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 13:36:53,257 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 13:36:53,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:36:53,259 INFO L158 Benchmark]: Toolchain (without parser) took 137297.57ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.1MB in the beginning and 41.7MB in the end (delta: -11.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-07-22 13:36:53,259 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:36:53,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.83ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 50.7MB in the end (delta: -20.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-22 13:36:53,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 67.1MB. Free memory was 50.5MB in the beginning and 49.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:36:53,260 INFO L158 Benchmark]: Boogie Preprocessor took 46.54ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:36:53,261 INFO L158 Benchmark]: RCFGBuilder took 8593.94ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 39.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:36:53,261 INFO L158 Benchmark]: TraceAbstraction took 128335.02ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 43.8MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:36:53,262 INFO L158 Benchmark]: Witness Printer took 39.30ms. Allocated memory is still 67.1MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:36:53,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.83ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 50.7MB in the end (delta: -20.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 67.1MB. Free memory was 50.5MB in the beginning and 49.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.54ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 47.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8593.94ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 39.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 128335.02ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 43.8MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.30ms. Allocated memory is still 67.1MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.343371033668518] [L29] 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)=1.343371033668518, \result=0.9773446321487427, x=1.343371033668518] [L42] RET, EXPR f(IN) VAL [f(IN)=0.9773446321487427, IN=1.343371033668518] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.343371033668518] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.343371033668518, \result=0.24153776466846466, x=1.343371033668518] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.9773446321487427, fp(IN)=0.24153776466846466, IN=1.343371033668518] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=-2.702971935272217] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-2.702971935272217, \result=-0.8231160640716553, x=-2.702971935272217] [L44] RET, EXPR f(x) VAL [f(x)=-0.8231160640716553, IN=1.343371033668518, x=-2.702971935272217] [L44] CALL, EXPR fp(x) VAL [\old(x)=-2.702971935272217] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-2.702971935272217, \result=0.11272174119949341, x=-2.702971935272217] [L44] RET, EXPR fp(x) VAL [f(x)=-0.8231160640716553, fp(x)=0.11272174119949341, IN=1.343371033668518, x=-2.702971935272217] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.343371033668518, x=4.599222660064697] [L51] reach_error() VAL [IN=1.343371033668518, x=4.599222660064697] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 128.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 72.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-22 13:36:53,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE