./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_6.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 2322eb78e0bcc31f88b84cc6e8634dc4fa1254b3bd27e5fa0d7077c3e2485500 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:16:23,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:16:23,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:16:23,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:16:23,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:16:23,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:16:23,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:16:23,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:16:23,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:16:23,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:16:23,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:16:23,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:16:23,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:16:23,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:16:23,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:16:23,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:16:23,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:16:23,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:16:23,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:16:23,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:16:23,206 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:16:23,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:16:23,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:16:23,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:16:23,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:16:23,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:16:23,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:16:23,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:16:23,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:16:23,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:16:23,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:16:23,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:16:23,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:16:23,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:16:23,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:16:23,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:16:23,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:16:23,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:16:23,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:16:23,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:16:23,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:16:23,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:16:23,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:16:23,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:16:23,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:16:23,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:16:23,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:16:23,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:16:23,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:16:23,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:16:23,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:16:23,286 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:16:23,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:16:23,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:16:23,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:16:23,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:16:23,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:16:23,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:16:23,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:16:23,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:16:23,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:16:23,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:16:23,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:16:23,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:16:23,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:16:23,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:16:23,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2322eb78e0bcc31f88b84cc6e8634dc4fa1254b3bd27e5fa0d7077c3e2485500 [2022-07-12 02:16:23,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:16:23,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:16:23,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:16:23,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:16:23,520 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:16:23,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_6.i [2022-07-12 02:16:23,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b90a8c5b/6c7fb48fa5fb4fc7bbee6d29bcc4d2a1/FLAG38b637a4c [2022-07-12 02:16:23,899 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:16:23,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_6.i [2022-07-12 02:16:23,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b90a8c5b/6c7fb48fa5fb4fc7bbee6d29bcc4d2a1/FLAG38b637a4c [2022-07-12 02:16:24,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b90a8c5b/6c7fb48fa5fb4fc7bbee6d29bcc4d2a1 [2022-07-12 02:16:24,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:16:24,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:16:24,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:16:24,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:16:24,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:16:24,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183d7f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24, skipping insertion in model container [2022-07-12 02:16:24,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:16:24,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:16:24,547 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_6.i[1764,1777] [2022-07-12 02:16:24,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:16:24,571 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:16:24,604 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_6.i[1764,1777] [2022-07-12 02:16:24,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:16:24,613 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:16:24,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24 WrapperNode [2022-07-12 02:16:24,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:16:24,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:16:24,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:16:24,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:16:24,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,640 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-07-12 02:16:24,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:16:24,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:16:24,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:16:24,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:16:24,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:16:24,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:16:24,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:16:24,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:16:24,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (1/1) ... [2022-07-12 02:16:24,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:16:24,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:16:24,697 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) [2022-07-12 02:16:24,702 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 [2022-07-12 02:16:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:16:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:16:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:16:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:16:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:16:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:16:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:16:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:16:24,810 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:16:24,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:16:24,943 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:16:24,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:16:24,955 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:16:24,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:24 BoogieIcfgContainer [2022-07-12 02:16:24,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:16:24,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:16:24,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:16:24,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:16:24,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:16:24" (1/3) ... [2022-07-12 02:16:24,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c86b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:24, skipping insertion in model container [2022-07-12 02:16:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:24" (2/3) ... [2022-07-12 02:16:24,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c86b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:24, skipping insertion in model container [2022-07-12 02:16:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:24" (3/3) ... [2022-07-12 02:16:24,962 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_6.i [2022-07-12 02:16:24,972 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:16:24,972 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:16:25,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:16:25,012 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@5ea87cd6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5e7755d9 [2022-07-12 02:16:25,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:16:25,020 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) [2022-07-12 02:16:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 02:16:25,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:16:25,037 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] [2022-07-12 02:16:25,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:16:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:16:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-12 02:16:25,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:16:25,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518181342] [2022-07-12 02:16:25,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:16:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:16:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 02:16:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 02:16:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 02:16:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 02:16:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 02:16:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 02:16:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 02:16:25,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:16:25,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518181342] [2022-07-12 02:16:25,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518181342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:16:25,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:16:25,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:16:25,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457419265] [2022-07-12 02:16:25,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:16:25,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:16:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:16:25,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:16:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:16:25,288 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) [2022-07-12 02:16:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:16:25,303 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-12 02:16:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:16:25,305 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 [2022-07-12 02:16:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:16:25,309 INFO L225 Difference]: With dead ends: 49 [2022-07-12 02:16:25,309 INFO L226 Difference]: Without dead ends: 22 [2022-07-12 02:16:25,312 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 [2022-07-12 02:16:25,315 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 [2022-07-12 02:16:25,315 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] [2022-07-12 02:16:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-12 02:16:25,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-12 02:16:25,344 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) [2022-07-12 02:16:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-12 02:16:25,346 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-12 02:16:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:16:25,347 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-12 02:16:25,347 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) [2022-07-12 02:16:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-12 02:16:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 02:16:25,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:16:25,350 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] [2022-07-12 02:16:25,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:16:25,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:16:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:16:25,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-12 02:16:25,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:16:25,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528133507] [2022-07-12 02:16:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:16:25,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:16:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:16:25,383 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:16:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:16:25,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:16:25,423 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:16:25,424 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:16:25,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:16:25,429 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:16:25,432 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:16:25,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:16:25 BoogieIcfgContainer [2022-07-12 02:16:25,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:16:25,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:16:25,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:16:25,461 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:16:25,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:24" (3/4) ... [2022-07-12 02:16:25,464 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:16:25,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:16:25,465 INFO L158 Benchmark]: Toolchain (without parser) took 1144.51ms. Allocated memory is still 151.0MB. Free memory was 89.3MB in the beginning and 84.3MB in the end (delta: 5.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,466 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 106.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:16:25,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 151.0MB. Free memory was 89.2MB in the beginning and 125.5MB in the end (delta: -36.3MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.65ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 124.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,473 INFO L158 Benchmark]: Boogie Preprocessor took 24.67ms. Allocated memory is still 151.0MB. Free memory was 124.0MB in the beginning and 122.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,474 INFO L158 Benchmark]: RCFGBuilder took 289.60ms. Allocated memory is still 151.0MB. Free memory was 122.7MB in the beginning and 112.9MB in the end (delta: 9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,474 INFO L158 Benchmark]: TraceAbstraction took 502.92ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 84.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-12 02:16:25,474 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 84.3MB in the end (delta: 659.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:16:25,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 106.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 151.0MB. Free memory was 89.2MB in the beginning and 125.5MB in the end (delta: -36.3MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.65ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 124.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.67ms. Allocated memory is still 151.0MB. Free memory was 124.0MB in the beginning and 122.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.60ms. Allocated memory is still 151.0MB. Free memory was 122.7MB in the beginning and 112.9MB in the end (delta: 9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 502.92ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 84.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 84.3MB in the end (delta: 659.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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 [2022-07-12 02:16:25,507 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 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_6.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 2322eb78e0bcc31f88b84cc6e8634dc4fa1254b3bd27e5fa0d7077c3e2485500 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:16:27,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:16:27,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:16:27,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:16:27,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:16:27,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:16:27,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:16:27,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:16:27,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:16:27,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:16:27,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:16:27,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:16:27,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:16:27,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:16:27,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:16:27,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:16:27,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:16:27,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:16:27,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:16:27,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:16:27,364 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:16:27,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:16:27,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:16:27,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:16:27,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:16:27,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:16:27,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:16:27,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:16:27,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:16:27,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:16:27,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:16:27,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:16:27,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:16:27,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:16:27,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:16:27,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:16:27,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:16:27,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:16:27,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:16:27,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:16:27,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:16:27,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:16:27,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:16:27,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:16:27,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:16:27,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:16:27,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:16:27,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:16:27,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:16:27,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:16:27,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:16:27,405 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:16:27,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:16:27,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:16:27,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:16:27,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:16:27,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:16:27,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:16:27,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:16:27,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:16:27,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:16:27,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:16:27,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:16:27,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:16:27,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:16:27,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:16:27,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:16:27,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:16:27,414 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:16:27,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:16:27,414 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:16:27,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:16:27,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:16:27,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:16:27,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2322eb78e0bcc31f88b84cc6e8634dc4fa1254b3bd27e5fa0d7077c3e2485500 [2022-07-12 02:16:27,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:16:27,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:16:27,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:16:27,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:16:27,702 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:16:27,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_6.i [2022-07-12 02:16:27,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14c78656/728ed6fd58b340a99f7e96433f30ac9b/FLAG0d1ca06bc [2022-07-12 02:16:28,168 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:16:28,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_6.i [2022-07-12 02:16:28,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14c78656/728ed6fd58b340a99f7e96433f30ac9b/FLAG0d1ca06bc [2022-07-12 02:16:28,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14c78656/728ed6fd58b340a99f7e96433f30ac9b [2022-07-12 02:16:28,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:16:28,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:16:28,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:16:28,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:16:28,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:16:28,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5159487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28, skipping insertion in model container [2022-07-12 02:16:28,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:16:28,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:16:28,385 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_6.i[1764,1777] [2022-07-12 02:16:28,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:16:28,412 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:16:28,475 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_6.i[1764,1777] [2022-07-12 02:16:28,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:16:28,489 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:16:28,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28 WrapperNode [2022-07-12 02:16:28,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:16:28,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:16:28,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:16:28,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:16:28,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,522 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-12 02:16:28,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:16:28,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:16:28,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:16:28,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:16:28,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:16:28,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:16:28,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:16:28,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:16:28,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (1/1) ... [2022-07-12 02:16:28,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:16:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:16:28,585 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) [2022-07-12 02:16:28,600 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 [2022-07-12 02:16:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:16:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:16:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:16:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:16:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:16:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:16:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:16:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:16:28,682 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:16:28,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:16:37,879 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:16:37,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:16:37,884 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:16:37,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:37 BoogieIcfgContainer [2022-07-12 02:16:37,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:16:37,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:16:37,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:16:37,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:16:37,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:16:28" (1/3) ... [2022-07-12 02:16:37,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b62b9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:37, skipping insertion in model container [2022-07-12 02:16:37,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:16:28" (2/3) ... [2022-07-12 02:16:37,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b62b9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:16:37, skipping insertion in model container [2022-07-12 02:16:37,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:16:37" (3/3) ... [2022-07-12 02:16:37,891 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_6.i [2022-07-12 02:16:37,901 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:16:37,901 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:16:37,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:16:37,943 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@916ec93, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1bec9983 [2022-07-12 02:16:37,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:16:37,946 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) [2022-07-12 02:16:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 02:16:37,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:16:37,952 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] [2022-07-12 02:16:37,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:16:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:16:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-12 02:16:37,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:16:37,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994013596] [2022-07-12 02:16:37,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:16:37,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:16:37,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:16:37,968 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) [2022-07-12 02:16:37,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:16:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:16:40,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:16:40,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:16:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 02:16:40,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:16:40,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:16:40,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994013596] [2022-07-12 02:16:40,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994013596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:16:40,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:16:40,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:16:40,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011497095] [2022-07-12 02:16:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:16:40,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:16:40,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:16:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:16:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:16:40,715 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) [2022-07-12 02:16:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:16:40,734 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-12 02:16:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:16:40,736 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 [2022-07-12 02:16:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:16:40,740 INFO L225 Difference]: With dead ends: 49 [2022-07-12 02:16:40,741 INFO L226 Difference]: Without dead ends: 22 [2022-07-12 02:16:40,745 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 [2022-07-12 02:16:40,749 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 [2022-07-12 02:16:40,750 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] [2022-07-12 02:16:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-12 02:16:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-12 02:16:40,780 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) [2022-07-12 02:16:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-12 02:16:40,784 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-12 02:16:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:16:40,784 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-12 02:16:40,785 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) [2022-07-12 02:16:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-12 02:16:40,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 02:16:40,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:16:40,787 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] [2022-07-12 02:16:40,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:16:40,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:16:40,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:16:40,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:16:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-12 02:16:40,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:16:40,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222374317] [2022-07-12 02:16:40,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:16:40,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:16:40,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:16:41,005 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) [2022-07-12 02:16:41,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:20:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:20:02,451 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.