./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_5.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_1_5.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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:20:54,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:20:54,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:20:54,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:20:54,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:20:54,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:20:54,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:20:54,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:20:54,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:20:54,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:20:54,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:20:54,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:20:54,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:20:54,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:20:54,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:20:54,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:20:54,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:20:54,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:20:54,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:20:54,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:20:54,159 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:20:54,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:20:54,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:20:54,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:20:54,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:20:54,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:20:54,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:20:54,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:20:54,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:20:54,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:20:54,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:20:54,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:20:54,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:20:54,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:20:54,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:20:54,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:20:54,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:20:54,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:20:54,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:20:54,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:20:54,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:20:54,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:20:54,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:20:54,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:20:54,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:20:54,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:20:54,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:20:54,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:20:54,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:20:54,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:20:54,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:20:54,202 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:20:54,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:20:54,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:20:54,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:20:54,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:20:54,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:20:54,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:20:54,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:20:54,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:20:54,204 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:20:54,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:20:54,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:20:54,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:20:54,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:20:54,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:20:54,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:20:54,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:20:54,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:20:54,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:20:54,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:20:54,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:20:54,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:20:54,207 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:20:54,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:20:54,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:20:54,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-19 13:20:54,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:20:54,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:20:54,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:20:54,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:20:54,409 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:20:54,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-19 13:20:54,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f497f05c/996ae9da54fe42bdb99fdf4954c407a2/FLAG14b16f5af [2022-07-19 13:20:54,787 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:20:54,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-19 13:20:54,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f497f05c/996ae9da54fe42bdb99fdf4954c407a2/FLAG14b16f5af [2022-07-19 13:20:55,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f497f05c/996ae9da54fe42bdb99fdf4954c407a2 [2022-07-19 13:20:55,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:20:55,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:20:55,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:20:55,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:20:55,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:20:55,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df128f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55, skipping insertion in model container [2022-07-19 13:20:55,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:20:55,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:20:55,368 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_1_5.i[1722,1735] [2022-07-19 13:20:55,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:20:55,377 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:20:55,389 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_1_5.i[1722,1735] [2022-07-19 13:20:55,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:20:55,405 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:20:55,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55 WrapperNode [2022-07-19 13:20:55,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:20:55,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:20:55,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:20:55,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:20:55,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,452 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-19 13:20:55,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:20:55,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:20:55,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:20:55,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:20:55,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:20:55,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:20:55,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:20:55,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:20:55,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (1/1) ... [2022-07-19 13:20:55,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:20:55,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:20:55,522 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 13:20:55,554 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 13:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:20:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:20:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:20:55,616 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:20:55,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:20:55,687 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:20:55,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:20:55,691 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:20:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:20:55 BoogieIcfgContainer [2022-07-19 13:20:55,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:20:55,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:20:55,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:20:55,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:20:55,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:20:55" (1/3) ... [2022-07-19 13:20:55,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da4430e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:20:55, skipping insertion in model container [2022-07-19 13:20:55,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:55" (2/3) ... [2022-07-19 13:20:55,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da4430e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:20:55, skipping insertion in model container [2022-07-19 13:20:55,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:20:55" (3/3) ... [2022-07-19 13:20:55,704 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-19 13:20:55,713 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:20:55,714 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:20:55,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:20:55,753 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@24099afc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3cf4566d [2022-07-19 13:20:55,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:20:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:20:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:20:55,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:20:55,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:20:55,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:20:55,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:20:55,765 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-19 13:20:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:20:55,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500895820] [2022-07-19 13:20:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:20:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:20:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:20:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:20:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:20:55,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500895820] [2022-07-19 13:20:55,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500895820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:20:55,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:20:55,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:20:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874599592] [2022-07-19 13:20:55,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:20:55,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:20:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:20:55,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:20:55,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:20:55,873 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:20:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:20:55,884 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-19 13:20:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:20:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-19 13:20:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:20:55,890 INFO L225 Difference]: With dead ends: 23 [2022-07-19 13:20:55,890 INFO L226 Difference]: Without dead ends: 9 [2022-07-19 13:20:55,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 13:20:55,898 INFO L413 NwaCegarLoop]: 12 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, 12 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 13:20:55,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:20:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-19 13:20:55,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-19 13:20:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:20:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-19 13:20:55,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-19 13:20:55,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:20:55,922 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-19 13:20:55,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:20:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-19 13:20:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:20:55,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:20:55,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:20:55,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:20:55,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:20:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:20:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-19 13:20:55,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:20:55,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370370424] [2022-07-19 13:20:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:20:55,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:20:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:20:55,948 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:20:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:20:55,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:20:55,981 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:20:55,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:20:55,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:20:55,987 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:20:55,992 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:20:56,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:20:56 BoogieIcfgContainer [2022-07-19 13:20:56,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:20:56,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:20:56,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:20:56,012 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:20:56,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:20:55" (3/4) ... [2022-07-19 13:20:56,015 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:20:56,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:20:56,017 INFO L158 Benchmark]: Toolchain (without parser) took 788.44ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 71.8MB in the beginning and 99.0MB in the end (delta: -27.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:20:56,017 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:20:56,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.23ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 71.5MB in the beginning and 100.0MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:20:56,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.74ms. Allocated memory is still 123.7MB. Free memory was 100.0MB in the beginning and 98.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:20:56,020 INFO L158 Benchmark]: Boogie Preprocessor took 36.15ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 97.4MB in the end (delta: 894.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:20:56,022 INFO L158 Benchmark]: RCFGBuilder took 203.13ms. Allocated memory is still 123.7MB. Free memory was 97.4MB in the beginning and 88.7MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 13:20:56,022 INFO L158 Benchmark]: TraceAbstraction took 315.93ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 99.5MB in the end (delta: -11.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-19 13:20:56,023 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 123.7MB. Free memory was 99.5MB in the beginning and 99.0MB in the end (delta: 517.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:20:56,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.23ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 71.5MB in the beginning and 100.0MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.74ms. Allocated memory is still 123.7MB. Free memory was 100.0MB in the beginning and 98.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.15ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 97.4MB in the end (delta: 894.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.13ms. Allocated memory is still 123.7MB. Free memory was 97.4MB in the beginning and 88.7MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 315.93ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 99.5MB in the end (delta: -11.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 123.7MB. Free memory was 99.5MB in the beginning and 99.0MB in the end (delta: 517.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, 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, 12 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, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 13:20:56,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_5.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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:20:57,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:20:57,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:20:57,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:20:57,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:20:57,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:20:57,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:20:57,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:20:57,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:20:57,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:20:57,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:20:57,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:20:57,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:20:57,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:20:57,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:20:57,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:20:57,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:20:57,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:20:57,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:20:57,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:20:57,837 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:20:57,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:20:57,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:20:57,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:20:57,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:20:57,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:20:57,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:20:57,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:20:57,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:20:57,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:20:57,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:20:57,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:20:57,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:20:57,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:20:57,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:20:57,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:20:57,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:20:57,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:20:57,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:20:57,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:20:57,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:20:57,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:20:57,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:20:57,879 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:20:57,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:20:57,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:20:57,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:20:57,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:20:57,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:20:57,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:20:57,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:20:57,881 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:20:57,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:20:57,882 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:20:57,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:20:57,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:20:57,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:20:57,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:20:57,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:20:57,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:20:57,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:20:57,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:20:57,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:20:57,886 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:20:57,886 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:20:57,886 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:20:57,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:20:57,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:20:57,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:20:57,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-19 13:20:58,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:20:58,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:20:58,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:20:58,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:20:58,151 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:20:58,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-19 13:20:58,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801867d/c43c3207431146eca359bda1f68ec92e/FLAGa762a6e59 [2022-07-19 13:20:58,524 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:20:58,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-19 13:20:58,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801867d/c43c3207431146eca359bda1f68ec92e/FLAGa762a6e59 [2022-07-19 13:20:58,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801867d/c43c3207431146eca359bda1f68ec92e [2022-07-19 13:20:58,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:20:58,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:20:58,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:20:58,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:20:58,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:20:58,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8ac385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58, skipping insertion in model container [2022-07-19 13:20:58,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:20:58,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:20:58,657 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_1_5.i[1722,1735] [2022-07-19 13:20:58,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:20:58,665 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:20:58,679 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_1_5.i[1722,1735] [2022-07-19 13:20:58,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:20:58,696 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:20:58,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58 WrapperNode [2022-07-19 13:20:58,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:20:58,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:20:58,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:20:58,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:20:58,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,724 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-19 13:20:58,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:20:58,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:20:58,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:20:58,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:20:58,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:20:58,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:20:58,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:20:58,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:20:58,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (1/1) ... [2022-07-19 13:20:58,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:20:58,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:20:58,786 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 13:20:58,793 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 13:20:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:20:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:20:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:20:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:20:58,865 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:20:58,866 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:21:05,319 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:21:05,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:21:05,323 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:21:05,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:05 BoogieIcfgContainer [2022-07-19 13:21:05,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:21:05,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:21:05,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:21:05,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:21:05,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:20:58" (1/3) ... [2022-07-19 13:21:05,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533a4a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:05, skipping insertion in model container [2022-07-19 13:21:05,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:20:58" (2/3) ... [2022-07-19 13:21:05,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533a4a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:05, skipping insertion in model container [2022-07-19 13:21:05,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:05" (3/3) ... [2022-07-19 13:21:05,329 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-19 13:21:05,339 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:21:05,341 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:21:05,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:21:05,420 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@15a0ea16, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7503a0e0 [2022-07-19 13:21:05,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:21:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:21:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:05,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:05,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:05,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:05,456 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-19 13:21:05,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:21:05,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823383154] [2022-07-19 13:21:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:05,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:21:05,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:21:05,467 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 13:21:05,468 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 13:21:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:21:06,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:21:06,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:21:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:21:06,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:21:06,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:21:06,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823383154] [2022-07-19 13:21:06,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823383154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:21:06,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:21:06,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:21:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917960770] [2022-07-19 13:21:06,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:21:06,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:21:06,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:21:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:21:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:21:06,363 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:21:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:21:06,370 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-19 13:21:06,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:21:06,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-19 13:21:06,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:21:06,375 INFO L225 Difference]: With dead ends: 23 [2022-07-19 13:21:06,375 INFO L226 Difference]: Without dead ends: 9 [2022-07-19 13:21:06,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 13:21:06,379 INFO L413 NwaCegarLoop]: 12 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, 12 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 13:21:06,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:21:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-19 13:21:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-19 13:21:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:21:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-19 13:21:06,396 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-19 13:21:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:21:06,397 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-19 13:21:06,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:21:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-19 13:21:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:06,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:06,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:06,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 13:21:06,604 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 13:21:06,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-19 13:21:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:21:06,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778781652] [2022-07-19 13:21:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:06,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:21:06,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:21:06,615 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 13:21:06,617 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 13:21:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:21:27,669 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:21:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:21:50,061 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 13:21:50,061 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:21:50,062 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:21:50,107 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 13:21:50,264 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 13:21:50,267 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:21:50,269 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:21:50,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:21:50 BoogieIcfgContainer [2022-07-19 13:21:50,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:21:50,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:21:50,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:21:50,331 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:21:50,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:05" (3/4) ... [2022-07-19 13:21:50,333 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 13:21:50,355 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:21:50,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:21:50,356 INFO L158 Benchmark]: Toolchain (without parser) took 51815.07ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.3MB in the beginning and 47.1MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:21:50,356 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:21:50,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.1MB in the beginning and 50.2MB in the end (delta: -18.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-19 13:21:50,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.88ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 48.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:21:50,358 INFO L158 Benchmark]: Boogie Preprocessor took 24.75ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 47.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:50,358 INFO L158 Benchmark]: RCFGBuilder took 6573.77ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 38.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:21:50,359 INFO L158 Benchmark]: TraceAbstraction took 45005.59ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 48.8MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 13:21:50,359 INFO L158 Benchmark]: Witness Printer took 24.58ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 47.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:50,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 35.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.1MB in the beginning and 50.2MB in the end (delta: -18.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.88ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 48.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.75ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 47.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6573.77ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 38.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 45005.59ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 48.8MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 24.58ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 47.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.8173828125, \result=-0.7294540405273438, x=-0.8173828125] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.8173828125, \result=0.684955894947052, x=-0.8173828125] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.8173828125, x=0.24758219718933105] [L51] reach_error() VAL [IN=-0.8173828125, x=0.24758219718933105] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.9s, OverallIterations: 2, TraceHistogramMax: 1, 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, 12 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, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 21.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 13:21:50,495 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