./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_3_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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:00:40,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:00:40,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:00:40,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:00:40,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:00:40,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:00:40,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:00:40,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:00:40,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:00:40,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:00:40,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:00:40,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:00:40,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:00:40,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:00:40,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:00:40,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:00:40,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:00:40,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:00:40,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:00:40,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:00:40,204 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:00:40,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:00:40,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:00:40,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:00:40,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:00:40,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:00:40,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:00:40,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:00:40,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:00:40,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:00:40,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:00:40,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:00:40,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:00:40,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:00:40,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:00:40,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:00:40,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:00:40,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:00:40,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:00:40,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:00:40,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:00:40,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:00:40,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:00:40,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:00:40,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:00:40,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:00:40,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:00:40,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:00:40,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:00:40,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:00:40,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:00:40,257 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:00:40,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:00:40,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:00:40,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:00:40,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:00:40,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:00:40,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:00:40,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:00:40,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:00:40,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:00:40,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:00:40,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:00:40,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:00:40,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:00:40,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:00:40,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:00:40,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:00:40,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:00:40,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:00:40,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:00:40,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:00:40,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:00:40,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:00:40,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:00:40,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:00:40,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-07-21 01:00:40,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:00:40,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:00:40,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:00:40,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:00:40,574 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:00:40,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-21 01:00:40,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85792785/a6f3e7c3e035454f9efc6dc44a826aed/FLAG4e5e00e74 [2022-07-21 01:00:40,952 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:00:40,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-21 01:00:40,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85792785/a6f3e7c3e035454f9efc6dc44a826aed/FLAG4e5e00e74 [2022-07-21 01:00:41,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85792785/a6f3e7c3e035454f9efc6dc44a826aed [2022-07-21 01:00:41,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:00:41,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:00:41,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:00:41,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:00:41,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:00:41,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc76cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41, skipping insertion in model container [2022-07-21 01:00:41,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:00:41,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:00:41,547 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_3_7.i[1764,1777] [2022-07-21 01:00:41,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:00:41,553 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:00:41,564 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_3_7.i[1764,1777] [2022-07-21 01:00:41,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:00:41,600 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:00:41,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41 WrapperNode [2022-07-21 01:00:41,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:00:41,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:00:41,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:00:41,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:00:41,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,641 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-07-21 01:00:41,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:00:41,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:00:41,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:00:41,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:00:41,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:00:41,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:00:41,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:00:41,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:00:41,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (1/1) ... [2022-07-21 01:00:41,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:00:41,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:00:41,677 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) [2022-07-21 01:00:41,693 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 [2022-07-21 01:00:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:00:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-21 01:00:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-21 01:00:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-21 01:00:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-21 01:00:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:00:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:00:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:00:41,755 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:00:41,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:00:41,824 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:00:41,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:00:41,829 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:00:41,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:41 BoogieIcfgContainer [2022-07-21 01:00:41,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:00:41,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:00:41,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:00:41,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:00:41,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:00:41" (1/3) ... [2022-07-21 01:00:41,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a429450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:00:41, skipping insertion in model container [2022-07-21 01:00:41,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:41" (2/3) ... [2022-07-21 01:00:41,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a429450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:00:41, skipping insertion in model container [2022-07-21 01:00:41,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:41" (3/3) ... [2022-07-21 01:00:41,836 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-07-21 01:00:41,845 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:00:41,846 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:00:41,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:00:41,883 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@7c6f92ff, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a4126c0 [2022-07-21 01:00:41,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:00:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 01:00:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 01:00:41,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:00:41,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:00:41,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:00:41,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:00:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-21 01:00:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:00:41,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547626454] [2022-07-21 01:00:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:00:41,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:00:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 01:00:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 01:00:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 01:00:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 01:00:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 01:00:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 01:00:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 01:00:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:00:42,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547626454] [2022-07-21 01:00:42,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547626454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:00:42,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:00:42,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:00:42,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913519879] [2022-07-21 01:00:42,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:00:42,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:00:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:00:42,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:00:42,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:00:42,129 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 01:00:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:00:42,145 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-21 01:00:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:00:42,147 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-07-21 01:00:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:00:42,155 INFO L225 Difference]: With dead ends: 49 [2022-07-21 01:00:42,155 INFO L226 Difference]: Without dead ends: 22 [2022-07-21 01:00:42,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:00:42,160 INFO L413 NwaCegarLoop]: 29 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, 29 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 [2022-07-21 01:00:42,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:00:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-21 01:00:42,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-21 01:00:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 01:00:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-21 01:00:42,198 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-21 01:00:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:00:42,199 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-21 01:00:42,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 01:00:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-21 01:00:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 01:00:42,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:00:42,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:00:42,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:00:42,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:00:42,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:00:42,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-21 01:00:42,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:00:42,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948788458] [2022-07-21 01:00:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:00:42,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:00:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:00:42,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:00:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:00:42,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:00:42,287 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:00:42,289 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:00:42,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:00:42,295 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:00:42,297 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:00:42,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:00:42 BoogieIcfgContainer [2022-07-21 01:00:42,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:00:42,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:00:42,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:00:42,325 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:00:42,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:41" (3/4) ... [2022-07-21 01:00:42,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:00:42,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:00:42,329 INFO L158 Benchmark]: Toolchain (without parser) took 933.37ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 27.6MB in the beginning and 38.5MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:00:42,330 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:00:42,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.32ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 27.5MB in the beginning and 44.9MB in the end (delta: -17.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-07-21 01:00:42,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 60.8MB. Free memory was 44.7MB in the beginning and 43.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:00:42,338 INFO L158 Benchmark]: Boogie Preprocessor took 11.78ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 42.4MB in the end (delta: 977.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:00:42,338 INFO L158 Benchmark]: RCFGBuilder took 175.77ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 33.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:00:42,338 INFO L158 Benchmark]: TraceAbstraction took 492.85ms. Allocated memory is still 60.8MB. Free memory was 32.8MB in the beginning and 38.8MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:00:42,339 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.5MB in the end (delta: 312.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:00:42,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.32ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 27.5MB in the beginning and 44.9MB in the end (delta: -17.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 60.8MB. Free memory was 44.7MB in the beginning and 43.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.78ms. Allocated memory is still 60.8MB. Free memory was 43.4MB in the beginning and 42.4MB in the end (delta: 977.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 175.77ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 33.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 492.85ms. Allocated memory is still 60.8MB. Free memory was 32.8MB in the beginning and 38.8MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.5MB in the end (delta: 312.9kB). 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 - 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 46. 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)=50] [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)=50, x=50] [L42] RET, EXPR f(IN) VAL [f(IN)=51, IN=50] [L42] CALL, EXPR fp(IN) VAL [\old(x)=50] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR fp(IN) VAL [f(IN)=51, fp(IN)=55, IN=50] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=52] [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)=52, x=52] [L44] RET, EXPR f(x) VAL [f(x)=53, IN=50, x=52] [L44] CALL, EXPR fp(x) VAL [\old(x)=52] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=56, IN=50, x=52] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [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)=54, x=54] [L46] RET, EXPR f(x) VAL [f(x)=57, IN=50, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L46] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=49, IN=50, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=50] [L51] reach_error() VAL [IN=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 3, 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, 29 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, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 [2022-07-21 01:00:42,380 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_3_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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:00:44,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:00:44,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:00:44,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:00:44,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:00:44,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:00:44,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:00:44,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:00:44,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:00:44,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:00:44,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:00:44,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:00:44,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:00:44,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:00:44,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:00:44,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:00:44,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:00:44,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:00:44,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:00:44,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:00:44,077 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:00:44,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:00:44,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:00:44,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:00:44,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:00:44,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:00:44,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:00:44,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:00:44,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:00:44,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:00:44,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:00:44,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:00:44,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:00:44,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:00:44,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:00:44,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:00:44,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:00:44,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:00:44,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:00:44,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:00:44,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:00:44,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:00:44,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:00:44,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:00:44,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:00:44,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:00:44,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:00:44,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:00:44,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:00:44,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:00:44,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:00:44,124 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:00:44,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:00:44,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:00:44,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:00:44,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:00:44,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:00:44,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:00:44,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:00:44,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:00:44,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:00:44,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:00:44,128 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:00:44,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:00:44,128 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:00:44,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:00:44,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:00:44,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:00:44,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-07-21 01:00:44,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:00:44,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:00:44,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:00:44,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:00:44,409 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:00:44,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-21 01:00:44,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c86668ea/73d3f9a9ca3e41b4b6f30fe08a4b773d/FLAGb8795ef26 [2022-07-21 01:00:44,788 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:00:44,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-21 01:00:44,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c86668ea/73d3f9a9ca3e41b4b6f30fe08a4b773d/FLAGb8795ef26 [2022-07-21 01:00:44,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c86668ea/73d3f9a9ca3e41b4b6f30fe08a4b773d [2022-07-21 01:00:44,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:00:44,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:00:44,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:00:44,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:00:44,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:00:44,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:00:44" (1/1) ... [2022-07-21 01:00:44,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa75c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:44, skipping insertion in model container [2022-07-21 01:00:44,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:00:44" (1/1) ... [2022-07-21 01:00:44,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:00:44,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:00:44,954 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_3_7.i[1764,1777] [2022-07-21 01:00:44,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:00:44,977 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:00:45,030 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_3_7.i[1764,1777] [2022-07-21 01:00:45,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:00:45,043 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:00:45,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45 WrapperNode [2022-07-21 01:00:45,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:00:45,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:00:45,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:00:45,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:00:45,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,074 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-21 01:00:45,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:00:45,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:00:45,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:00:45,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:00:45,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:00:45,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:00:45,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:00:45,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:00:45,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (1/1) ... [2022-07-21 01:00:45,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:00:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:00:45,157 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) [2022-07-21 01:00:45,175 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 [2022-07-21 01:00:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:00:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-21 01:00:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-21 01:00:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:00:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-21 01:00:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-21 01:00:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:00:45,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:00:45,238 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:00:45,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:00:56,209 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:00:56,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:00:56,214 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:00:56,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:56 BoogieIcfgContainer [2022-07-21 01:00:56,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:00:56,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:00:56,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:00:56,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:00:56,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:00:44" (1/3) ... [2022-07-21 01:00:56,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5536ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:00:56, skipping insertion in model container [2022-07-21 01:00:56,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:00:45" (2/3) ... [2022-07-21 01:00:56,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5536ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:00:56, skipping insertion in model container [2022-07-21 01:00:56,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:56" (3/3) ... [2022-07-21 01:00:56,223 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-07-21 01:00:56,234 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:00:56,234 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:00:56,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:00:56,301 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@260a5f48, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6bdc9a48 [2022-07-21 01:00:56,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:00:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 01:00:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 01:00:56,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:00:56,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:00:56,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:00:56,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:00:56,317 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-21 01:00:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:00:56,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955619268] [2022-07-21 01:00:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:00:56,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:00:56,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:00:56,340 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) [2022-07-21 01:00:56,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:00:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:00:59,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:00:59,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:00:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 01:00:59,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:00:59,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:00:59,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955619268] [2022-07-21 01:00:59,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955619268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:00:59,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:00:59,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:00:59,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88373087] [2022-07-21 01:00:59,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:00:59,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:00:59,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:00:59,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:00:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:00:59,075 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 01:00:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:00:59,097 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-21 01:00:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:00:59,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-07-21 01:00:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:00:59,103 INFO L225 Difference]: With dead ends: 49 [2022-07-21 01:00:59,103 INFO L226 Difference]: Without dead ends: 22 [2022-07-21 01:00:59,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:00:59,110 INFO L413 NwaCegarLoop]: 29 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, 29 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 [2022-07-21 01:00:59,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:00:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-21 01:00:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-21 01:00:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 01:00:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-21 01:00:59,140 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-21 01:00:59,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:00:59,141 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-21 01:00:59,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 01:00:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-21 01:00:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 01:00:59,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:00:59,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:00:59,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 01:00:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:00:59,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:00:59,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:00:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-21 01:00:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:00:59,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590265101] [2022-07-21 01:00:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:00:59,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:00:59,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:00:59,383 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) [2022-07-21 01:00:59,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:01:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:01:43,456 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:05:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:05:02,961 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 01:05:02,961 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:05:02,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:05:03,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:05:03,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:05:03,168 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:05:03,170 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:05:03,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:05:03 BoogieIcfgContainer [2022-07-21 01:05:03,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:05:03,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:05:03,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:05:03,218 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:05:03,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:00:56" (3/4) ... [2022-07-21 01:05:03,220 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 01:05:03,248 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:05:03,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:05:03,249 INFO L158 Benchmark]: Toolchain (without parser) took 258445.21ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.8MB in the beginning and 36.2MB in the end (delta: -12.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,249 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:05:03,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.65ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.6MB in the beginning and 47.7MB in the end (delta: -24.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.66ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,250 INFO L158 Benchmark]: Boogie Preprocessor took 35.44ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,251 INFO L158 Benchmark]: RCFGBuilder took 11104.72ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 35.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,251 INFO L158 Benchmark]: TraceAbstraction took 246999.15ms. Allocated memory is still 65.0MB. Free memory was 35.2MB in the beginning and 38.6MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:05:03,251 INFO L158 Benchmark]: Witness Printer took 30.81ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:05:03,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.65ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.6MB in the beginning and 47.7MB in the end (delta: -24.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.66ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 46.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.44ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11104.72ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 35.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 246999.15ms. Allocated memory is still 65.0MB. Free memory was 35.2MB in the beginning and 38.6MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.81ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.2MB in the end (delta: 2.4MB). 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)=-1.1654444932937622] [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)=-1.1654444932937622, \result=-0.9201117753982544, x=-1.1654444932937622] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.9201117753982544, IN=-1.1654444932937622] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.1654444932937622] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1654444932937622, \result=0.40121957659721375, x=-1.1654444932937622] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.9201117753982544, fp(IN)=0.40121957659721375, IN=-1.1654444932937622] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=1.1278427839279175] [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)=1.1278427839279175, \result=0.9044027924537659, x=1.1278427839279175] [L44] RET, EXPR f(x) VAL [f(x)=0.9044027924537659, IN=-1.1654444932937622, x=1.1278427839279175] [L44] CALL, EXPR fp(x) VAL [\old(x)=1.1278427839279175] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1278427839279175, \result=0.43426305055618286, x=1.1278427839279175] [L44] RET, EXPR fp(x) VAL [f(x)=0.9044027924537659, fp(x)=0.43426305055618286, IN=-1.1654444932937622, x=1.1278427839279175] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=-0.9547723531723022] [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)=-0.9547723531723022, \result=-0.8164674639701843, x=-0.9547723531723022] [L46] RET, EXPR f(x) VAL [f(x)=-0.8164674639701843, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] CALL, EXPR fp(x) VAL [\old(x)=-0.9547723531723022] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9547723531723022, \result=0.5798819065093994, x=-0.9547723531723022] [L46] RET, EXPR fp(x) VAL [f(x)=-0.8164674639701843, fp(x)=0.5798819065093994, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1654444932937622, x=0.45321691036224365] [L51] reach_error() VAL [IN=-1.1654444932937622, x=0.45321691036224365] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 246.9s, OverallIterations: 2, TraceHistogramMax: 3, 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, 29 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, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 46.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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! [2022-07-21 01:05:03,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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