./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_8.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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:25:22,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:25:22,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:25:22,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:25:22,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:25:22,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:25:22,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:25:22,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:25:22,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:25:22,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:25:22,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:25:22,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:25:22,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:25:22,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:25:22,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:25:22,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:25:22,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:25:22,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:25:22,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:25:22,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:25:22,546 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:25:22,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:25:22,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:25:22,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:25:22,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:25:22,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:25:22,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:25:22,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:25:22,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:25:22,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:25:22,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:25:22,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:25:22,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:25:22,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:25:22,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:25:22,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:25:22,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:25:22,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:25:22,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:25:22,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:25:22,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:25:22,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:25:22,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:25:22,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:25:22,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:25:22,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:25:22,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:25:22,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:25:22,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:25:22,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:25:22,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:25:22,608 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:25:22,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:25:22,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:25:22,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:25:22,610 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:25:22,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:25:22,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:25:22,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:25:22,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:25:22,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:22,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:25:22,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:25:22,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2022-07-19 13:25:22,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:25:22,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:25:22,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:25:22,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:25:22,800 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:25:22,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-07-19 13:25:22,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4140ad59/f8957317f95c461587920230613ef0da/FLAG9067b7dbe [2022-07-19 13:25:23,220 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:25:23,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-07-19 13:25:23,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4140ad59/f8957317f95c461587920230613ef0da/FLAG9067b7dbe [2022-07-19 13:25:23,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4140ad59/f8957317f95c461587920230613ef0da [2022-07-19 13:25:23,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:25:23,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:25:23,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:23,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:25:23,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:25:23,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17716aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23, skipping insertion in model container [2022-07-19 13:25:23,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:25:23,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:25:23,408 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_8.i[1764,1777] [2022-07-19 13:25:23,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:23,415 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:25:23,426 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_8.i[1764,1777] [2022-07-19 13:25:23,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:23,434 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:25:23,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23 WrapperNode [2022-07-19 13:25:23,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:23,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:23,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:25:23,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:25:23,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,455 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-07-19 13:25:23,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:23,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:25:23,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:25:23,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:25:23,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:25:23,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:25:23,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:25:23,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:25:23,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (1/1) ... [2022-07-19 13:25:23,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:23,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:25:23,493 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) [2022-07-19 13:25:23,498 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 [2022-07-19 13:25:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:25:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-19 13:25:23,521 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-19 13:25:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-19 13:25:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-19 13:25:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:25:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:25:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:25:23,565 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:25:23,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:25:23,626 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:25:23,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:25:23,631 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:25:23,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:23 BoogieIcfgContainer [2022-07-19 13:25:23,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:25:23,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:25:23,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:25:23,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:25:23,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:25:23" (1/3) ... [2022-07-19 13:25:23,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777b2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:23, skipping insertion in model container [2022-07-19 13:25:23,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:23" (2/3) ... [2022-07-19 13:25:23,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777b2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:23, skipping insertion in model container [2022-07-19 13:25:23,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:23" (3/3) ... [2022-07-19 13:25:23,638 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2022-07-19 13:25:23,647 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:25:23,648 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:25:23,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:25:23,683 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@25261326, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20db7f43 [2022-07-19 13:25:23,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:25:23,687 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) [2022-07-19 13:25:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:23,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:23,703 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] [2022-07-19 13:25:23,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:23,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-19 13:25:23,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:25:23,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146772861] [2022-07-19 13:25:23,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:23,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:25:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 13:25:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 13:25:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 13:25:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 13:25:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 13:25:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 13:25:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 13:25:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:25:23,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146772861] [2022-07-19 13:25:23,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146772861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:25:23,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:25:23,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:25:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507726327] [2022-07-19 13:25:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:25:23,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:25:23,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:25:23,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:25:23,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:25:23,889 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) [2022-07-19 13:25:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:25:23,907 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-19 13:25:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:25:23,909 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 [2022-07-19 13:25:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:25:23,913 INFO L225 Difference]: With dead ends: 49 [2022-07-19 13:25:23,914 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 13:25:23,916 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 [2022-07-19 13:25:23,918 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 [2022-07-19 13:25:23,919 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] [2022-07-19 13:25:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 13:25:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 13:25:23,941 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) [2022-07-19 13:25:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-19 13:25:23,944 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-19 13:25:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:25:23,944 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-19 13:25:23,944 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) [2022-07-19 13:25:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-19 13:25:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:23,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:23,946 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] [2022-07-19 13:25:23,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:25:23,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-19 13:25:23,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:25:23,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863409007] [2022-07-19 13:25:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:23,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:25:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:25:23,961 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:25:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:25:23,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:25:23,990 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:25:23,991 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:25:23,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:25:23,994 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:25:24,005 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:25:24,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:25:24 BoogieIcfgContainer [2022-07-19 13:25:24,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:25:24,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:25:24,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:25:24,036 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:25:24,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:23" (3/4) ... [2022-07-19 13:25:24,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:25:24,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:25:24,040 INFO L158 Benchmark]: Toolchain (without parser) took 796.00ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 77.1MB in the end (delta: 31.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,041 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 88.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:24,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.11ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 117.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.62ms. Allocated memory is still 140.5MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,043 INFO L158 Benchmark]: Boogie Preprocessor took 15.55ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 114.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,044 INFO L158 Benchmark]: RCFGBuilder took 160.06ms. Allocated memory is still 140.5MB. Free memory was 114.2MB in the beginning and 105.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,044 INFO L158 Benchmark]: TraceAbstraction took 401.57ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 77.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-19 13:25:24,044 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 140.5MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:24,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 88.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.11ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 117.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.62ms. Allocated memory is still 140.5MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.55ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 114.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 160.06ms. Allocated memory is still 140.5MB. Free memory was 114.2MB in the beginning and 105.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 401.57ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 77.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 140.5MB. Free memory is still 77.1MB. 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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: 0.3s, 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 [2022-07-19 13:25:24,088 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_8.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 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:25:25,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:25:25,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:25:25,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:25:25,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:25:25,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:25:25,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:25:25,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:25:25,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:25:25,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:25:25,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:25:25,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:25:25,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:25:25,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:25:25,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:25:25,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:25:25,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:25:25,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:25:25,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:25:25,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:25:25,852 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:25:25,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:25:25,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:25:25,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:25:25,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:25:25,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:25:25,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:25:25,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:25:25,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:25:25,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:25:25,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:25:25,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:25:25,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:25:25,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:25:25,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:25:25,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:25:25,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:25:25,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:25:25,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:25:25,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:25:25,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:25:25,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:25:25,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:25:25,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:25:25,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:25:25,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:25:25,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:25:25,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:25:25,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:25:25,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:25:25,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:25:25,901 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:25:25,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:25:25,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:25:25,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:25:25,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:25:25,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:25:25,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:25:25,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:25:25,909 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:25:25,909 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:25:25,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:25:25,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:25:25,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:25:25,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:25,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:25:25,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:25:25,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:25:25,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:25:25,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5c9a042714ec99fe52d86211c8b4da5d2ba3d5759e35d6939f68d62f0ae59d [2022-07-19 13:25:26,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:25:26,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:25:26,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:25:26,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:25:26,184 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:25:26,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-07-19 13:25:26,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83aabdf67/0a0f7141f51c4ccbb2a3de56b02050b7/FLAG9ab87f5df [2022-07-19 13:25:26,597 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:25:26,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2022-07-19 13:25:26,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83aabdf67/0a0f7141f51c4ccbb2a3de56b02050b7/FLAG9ab87f5df [2022-07-19 13:25:26,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83aabdf67/0a0f7141f51c4ccbb2a3de56b02050b7 [2022-07-19 13:25:26,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:25:26,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:25:26,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:26,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:25:26,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:25:26,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25da6949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26, skipping insertion in model container [2022-07-19 13:25:26,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:25:26,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:25:26,746 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_8.i[1764,1777] [2022-07-19 13:25:26,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:26,790 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:25:26,813 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_8.i[1764,1777] [2022-07-19 13:25:26,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:26,825 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:25:26,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26 WrapperNode [2022-07-19 13:25:26,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:26,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:26,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:25:26,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:25:26,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,858 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-19 13:25:26,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:26,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:25:26,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:25:26,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:25:26,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:25:26,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:25:26,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:25:26,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:25:26,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (1/1) ... [2022-07-19 13:25:26,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:26,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:25:26,921 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) [2022-07-19 13:25:26,939 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 [2022-07-19 13:25:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:25:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-19 13:25:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-19 13:25:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:25:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-19 13:25:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-19 13:25:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:25:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:25:27,019 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:25:27,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:25:33,816 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:25:33,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:25:33,820 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:25:33,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:33 BoogieIcfgContainer [2022-07-19 13:25:33,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:25:33,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:25:33,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:25:33,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:25:33,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:25:26" (1/3) ... [2022-07-19 13:25:33,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44450e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:33, skipping insertion in model container [2022-07-19 13:25:33,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:26" (2/3) ... [2022-07-19 13:25:33,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44450e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:33, skipping insertion in model container [2022-07-19 13:25:33,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:33" (3/3) ... [2022-07-19 13:25:33,826 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2022-07-19 13:25:33,835 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:25:33,836 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:25:33,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:25:33,875 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@55f83edd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@68c8dcf7 [2022-07-19 13:25:33,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:25:33,878 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) [2022-07-19 13:25:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:33,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:33,884 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] [2022-07-19 13:25:33,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:33,888 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-19 13:25:33,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:25:33,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731454620] [2022-07-19 13:25:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:25:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:25:33,910 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) [2022-07-19 13:25:33,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:25:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:36,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:25:36,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:25:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 13:25:36,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:25:36,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:25:36,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731454620] [2022-07-19 13:25:36,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731454620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:25:36,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:25:36,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:25:36,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794401236] [2022-07-19 13:25:36,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:25:36,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:25:36,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:25:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:25:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:25:36,523 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) [2022-07-19 13:25:36,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:25:36,535 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-19 13:25:36,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:25:36,537 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 [2022-07-19 13:25:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:25:36,541 INFO L225 Difference]: With dead ends: 49 [2022-07-19 13:25:36,541 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 13:25:36,543 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 [2022-07-19 13:25:36,545 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 [2022-07-19 13:25:36,546 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] [2022-07-19 13:25:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 13:25:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 13:25:36,568 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) [2022-07-19 13:25:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-19 13:25:36,570 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-19 13:25:36,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:25:36,570 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-19 13:25:36,570 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) [2022-07-19 13:25:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-19 13:25:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:36,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:36,572 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] [2022-07-19 13:25:36,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:25:36,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:25:36,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-19 13:25:36,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:25:36,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231395316] [2022-07-19 13:25:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:36,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:25:36,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:25:36,792 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) [2022-07-19 13:25:36,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:29:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:29:01,739 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:29:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:29:40,826 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 13:29:40,827 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:29:40,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:29:40,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 13:29:41,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:29:41,032 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:29:41,035 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:29:41,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:29:41 BoogieIcfgContainer [2022-07-19 13:29:41,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:29:41,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:29:41,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:29:41,060 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:29:41,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:33" (3/4) ... [2022-07-19 13:29:41,061 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 13:29:41,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:29:41,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:29:41,101 INFO L158 Benchmark]: Toolchain (without parser) took 254488.70ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 41.3MB in the beginning and 39.5MB in the end (delta: 1.8MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,102 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:29:41,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.00ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 42.9MB in the end (delta: -1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.05ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:29:41,102 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 40.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,102 INFO L158 Benchmark]: RCFGBuilder took 6923.55ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 30.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,103 INFO L158 Benchmark]: TraceAbstraction took 247236.50ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 30.3MB in the beginning and 42.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,103 INFO L158 Benchmark]: Witness Printer took 41.72ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 39.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:29:41,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.00ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 42.9MB in the end (delta: -1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.05ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 40.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6923.55ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 30.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 247236.50ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 30.3MB in the beginning and 42.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 41.72ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 39.5MB in the end (delta: 2.5MB). 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.4229505062103271] [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)=-1.4229505062103271, \result=-0.99371337890625, x=-1.4229505062103271] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.99371337890625, IN=-1.4229505062103271] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.4229505062103271] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.4229505062103271, \result=0.1699589490890503, x=-1.4229505062103271] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.99371337890625, fp(IN)=0.1699589490890503, IN=-1.4229505062103271] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=4.423833847045898] [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)=4.423833847045898, \result=10.692843437194824, x=4.423833847045898] [L44] RET, EXPR f(x) VAL [f(x)=10.692843437194824, IN=-1.4229505062103271, x=4.423833847045898] [L44] CALL, EXPR fp(x) VAL [\old(x)=4.423833847045898] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=4.423833847045898, \result=17.583280563354492, x=4.423833847045898] [L44] RET, EXPR fp(x) VAL [f(x)=10.692843437194824, fp(x)=17.583280563354492, IN=-1.4229505062103271, x=4.423833847045898] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=3.8157081604003906] [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)=3.8157081604003906, \result=3.6336898803710938, x=3.8157081604003906] [L46] RET, EXPR f(x) VAL [f(x)=3.6336898803710938, IN=-1.4229505062103271, x=3.8157081604003906] [L46] CALL, EXPR fp(x) VAL [\old(x)=3.8157081604003906] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=3.8157081604003906, \result=6.8394551277160645, x=3.8157081604003906] [L46] RET, EXPR fp(x) VAL [f(x)=3.6336898803710938, fp(x)=6.8394551277160645, IN=-1.4229505062103271, x=3.8157081604003906] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.4229505062103271, x=3.2844245433807373] [L51] reach_error() VAL [IN=-1.4229505062103271, x=3.2844245433807373] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 247.2s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 207.3s 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! [2022-07-19 13:29:41,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE