./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:25:16,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:25:16,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:25:16,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:25:16,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:25:16,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:25:16,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:25:16,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:25:16,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:25:16,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:25:16,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:25:16,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:25:16,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:25:16,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:25:16,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:25:16,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:25:16,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:25:16,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:25:16,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:25:16,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:25:16,981 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:25:16,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:25:16,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:25:16,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:25:16,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:25:16,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:25:16,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:25:16,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:25:16,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:25:16,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:25:16,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:25:16,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:25:16,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:25:16,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:25:16,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:25:16,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:25:16,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:25:16,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:25:16,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:25:16,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:25:16,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:25:16,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:25:16,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:25:17,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:25:17,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:25:17,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:25:17,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:25:17,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:25:17,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:25:17,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:25:17,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:25:17,009 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:25:17,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:25:17,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:25:17,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:25:17,011 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:25:17,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:25:17,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:25:17,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:25:17,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:17,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:25:17,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:25:17,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:25:17,013 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:25:17,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:25:17,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:25:17,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-07-19 13:25:17,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:25:17,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:25:17,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:25:17,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:25:17,226 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:25:17,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-19 13:25:17,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12241a6d0/92e85a8c47354f4ab51bf2fb04f335d1/FLAG7268149d2 [2022-07-19 13:25:17,556 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:25:17,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-19 13:25:17,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12241a6d0/92e85a8c47354f4ab51bf2fb04f335d1/FLAG7268149d2 [2022-07-19 13:25:17,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12241a6d0/92e85a8c47354f4ab51bf2fb04f335d1 [2022-07-19 13:25:18,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:25:18,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:25:18,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:18,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:25:18,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:25:18,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:17" (1/1) ... [2022-07-19 13:25:18,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321e8dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18, skipping insertion in model container [2022-07-19 13:25:18,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:17" (1/1) ... [2022-07-19 13:25:18,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:25:18,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:25:18,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-07-19 13:25:18,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:18,138 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:25:18,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-07-19 13:25:18,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:18,165 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:25:18,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18 WrapperNode [2022-07-19 13:25:18,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:18,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:18,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:25:18,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:25:18,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,191 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-07-19 13:25:18,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:18,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:25:18,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:25:18,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:25:18,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:25:18,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:25:18,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:25:18,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:25:18,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (1/1) ... [2022-07-19 13:25:18,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:25:18,233 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 13:25:18,235 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 13:25:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:25:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-19 13:25:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-19 13:25:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-19 13:25:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-19 13:25:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:25:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:25:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:25:18,320 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:25:18,322 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:25:18,410 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:25:18,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:25:18,414 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:25:18,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:18 BoogieIcfgContainer [2022-07-19 13:25:18,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:25:18,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:25:18,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:25:18,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:25:18,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:25:17" (1/3) ... [2022-07-19 13:25:18,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca9d85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:18, skipping insertion in model container [2022-07-19 13:25:18,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:18" (2/3) ... [2022-07-19 13:25:18,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca9d85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:18, skipping insertion in model container [2022-07-19 13:25:18,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:18" (3/3) ... [2022-07-19 13:25:18,421 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-07-19 13:25:18,431 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:25:18,432 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:25:18,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:25:18,466 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@1b175a4d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e9db402 [2022-07-19 13:25:18,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:25:18,470 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 13:25:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:18,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:18,476 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 13:25:18,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-19 13:25:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:25:18,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755958809] [2022-07-19 13:25:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:18,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:25:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 13:25:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 13:25:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 13:25:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 13:25:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 13:25:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 13:25:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:18,638 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 13:25:18,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:25:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755958809] [2022-07-19 13:25:18,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755958809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:25:18,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:25:18,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:25:18,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793393830] [2022-07-19 13:25:18,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:25:18,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:25:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:25:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:25:18,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:25:18,684 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 13:25:18,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:25:18,703 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-19 13:25:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:25:18,705 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 13:25:18,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:25:18,714 INFO L225 Difference]: With dead ends: 49 [2022-07-19 13:25:18,715 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 13:25:18,718 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 13:25:18,722 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 13:25:18,723 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 13:25:18,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 13:25:18,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 13:25:18,760 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 13:25:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-19 13:25:18,762 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-19 13:25:18,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:25:18,763 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-19 13:25:18,763 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 13:25:18,763 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-19 13:25:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:18,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:18,765 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 13:25:18,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:25:18,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:18,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-19 13:25:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:25:18,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751273717] [2022-07-19 13:25:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:18,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:25:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:25:18,803 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:25:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:25:18,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:25:18,851 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:25:18,852 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:25:18,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:25:18,856 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:25:18,859 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:25:18,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:25:18 BoogieIcfgContainer [2022-07-19 13:25:18,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:25:18,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:25:18,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:25:18,888 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:25:18,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:18" (3/4) ... [2022-07-19 13:25:18,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:25:18,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:25:18,892 INFO L158 Benchmark]: Toolchain (without parser) took 890.49ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 58.0MB in the beginning and 83.2MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:18,892 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.8MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:18,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.09ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 97.5MB in the end (delta: -39.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 13:25:18,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.74ms. Allocated memory is still 119.5MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:25:18,900 INFO L158 Benchmark]: Boogie Preprocessor took 12.61ms. Allocated memory is still 119.5MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:18,900 INFO L158 Benchmark]: RCFGBuilder took 210.43ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 85.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 13:25:18,901 INFO L158 Benchmark]: TraceAbstraction took 470.09ms. Allocated memory is still 119.5MB. Free memory was 84.8MB in the beginning and 83.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:18,901 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 83.2MB in the end (delta: 497.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:25:18,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.8MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.09ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 97.5MB in the end (delta: -39.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.74ms. Allocated memory is still 119.5MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.61ms. Allocated memory is still 119.5MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 210.43ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 85.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 470.09ms. Allocated memory is still 119.5MB. Free memory was 84.8MB in the beginning and 83.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 83.2MB in the end (delta: 497.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=50] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR f(IN) VAL [f(IN)=51, IN=50] [L42] CALL, EXPR fp(IN) VAL [\old(x)=50] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR fp(IN) VAL [f(IN)=51, fp(IN)=55, IN=50] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=52] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=52, x=52] [L44] RET, EXPR f(x) VAL [f(x)=53, IN=50, x=52] [L44] CALL, EXPR fp(x) VAL [\old(x)=52] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=56, IN=50, x=52] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54, x=54] [L46] RET, EXPR f(x) VAL [f(x)=57, IN=50, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L46] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=49, IN=50, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=50] [L51] reach_error() VAL [IN=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 13:25:18,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:25:20,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:25:20,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:25:20,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:25:20,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:25:20,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:25:20,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:25:20,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:25:20,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:25:20,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:25:20,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:25:20,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:25:20,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:25:20,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:25:20,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:25:20,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:25:20,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:25:20,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:25:20,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:25:20,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:25:20,666 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:25:20,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:25:20,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:25:20,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:25:20,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:25:20,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:25:20,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:25:20,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:25:20,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:25:20,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:25:20,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:25:20,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:25:20,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:25:20,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:25:20,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:25:20,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:25:20,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:25:20,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:25:20,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:25:20,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:25:20,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:25:20,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:25:20,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:25:20,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:25:20,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:25:20,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:25:20,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:25:20,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:25:20,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:25:20,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:25:20,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:25:20,722 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:25:20,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:25:20,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:25:20,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:25:20,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:25:20,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:25:20,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:25:20,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:25:20,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:20,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:25:20,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:25:20,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:25:20,726 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:25:20,727 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2022-07-19 13:25:21,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:25:21,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:25:21,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:25:21,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:25:21,025 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:25:21,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-19 13:25:21,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc98b330/40a47c88279242aab130c9c9eb98d71a/FLAGd1c4c580f [2022-07-19 13:25:21,419 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:25:21,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2022-07-19 13:25:21,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc98b330/40a47c88279242aab130c9c9eb98d71a/FLAGd1c4c580f [2022-07-19 13:25:21,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc98b330/40a47c88279242aab130c9c9eb98d71a [2022-07-19 13:25:21,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:25:21,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:25:21,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:21,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:25:21,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:25:21,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec7e6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21, skipping insertion in model container [2022-07-19 13:25:21,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:25:21,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:25:21,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-07-19 13:25:21,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:21,571 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:25:21,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2022-07-19 13:25:21,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:25:21,629 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:25:21,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21 WrapperNode [2022-07-19 13:25:21,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:25:21,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:21,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:25:21,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:25:21,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,652 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-19 13:25:21,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:25:21,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:25:21,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:25:21,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:25:21,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:25:21,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:25:21,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:25:21,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:25:21,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (1/1) ... [2022-07-19 13:25:21,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:25:21,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:25:21,704 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 13:25:21,713 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 13:25:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:25:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-19 13:25:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-19 13:25:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:25:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-19 13:25:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-19 13:25:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:25:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:25:21,778 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:25:21,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:25:32,668 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:25:32,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:25:32,672 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:25:32,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:32 BoogieIcfgContainer [2022-07-19 13:25:32,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:25:32,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:25:32,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:25:32,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:25:32,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:25:21" (1/3) ... [2022-07-19 13:25:32,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363207f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:32, skipping insertion in model container [2022-07-19 13:25:32,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:25:21" (2/3) ... [2022-07-19 13:25:32,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363207f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:25:32, skipping insertion in model container [2022-07-19 13:25:32,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:32" (3/3) ... [2022-07-19 13:25:32,691 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2022-07-19 13:25:32,700 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:25:32,704 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:25:32,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:25:32,757 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@5038d3cd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@588de950 [2022-07-19 13:25:32,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:25:32,760 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 13:25:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:32,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:32,774 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 13:25:32,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:32,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:32,778 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-19 13:25:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:25:32,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204362018] [2022-07-19 13:25:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:32,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:25:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:25:32,789 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 13:25:32,797 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 13:25:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:25:35,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:25:35,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:25:35,452 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 13:25:35,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:25:35,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:25:35,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204362018] [2022-07-19 13:25:35,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204362018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:25:35,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:25:35,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:25:35,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319606533] [2022-07-19 13:25:35,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:25:35,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:25:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:25:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:25:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:25:35,488 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 13:25:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:25:35,500 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-19 13:25:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:25:35,506 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 13:25:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:25:35,514 INFO L225 Difference]: With dead ends: 49 [2022-07-19 13:25:35,515 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 13:25:35,517 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 13:25:35,519 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 13:25:35,520 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 13:25:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 13:25:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 13:25:35,542 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 13:25:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-19 13:25:35,543 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-19 13:25:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:25:35,544 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-19 13:25:35,544 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 13:25:35,544 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-19 13:25:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 13:25:35,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:25:35,546 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 13:25:35,614 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 13:25:35,769 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 13:25:35,770 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:25:35,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:25:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-19 13:25:35,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:25:35,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091514702] [2022-07-19 13:25:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:25:35,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:25:35,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:25:35,779 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 13:25:35,781 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 13:26:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:26:18,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:29:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:29:36,527 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 13:29:36,528 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:29:36,529 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:29:36,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-19 13:29:36,730 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 13:29:36,733 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:29:36,735 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:29:36,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:29:36 BoogieIcfgContainer [2022-07-19 13:29:36,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:29:36,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:29:36,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:29:36,790 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:29:36,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:25:32" (3/4) ... [2022-07-19 13:29:36,791 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 13:29:36,850 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:29:36,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:29:36,854 INFO L158 Benchmark]: Toolchain (without parser) took 255410.82ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 45.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,855 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 30.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:29:36,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.05ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 49.3MB in the end (delta: -2.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.24ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 47.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,856 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 46.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,858 INFO L158 Benchmark]: RCFGBuilder took 10993.86ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 37.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,858 INFO L158 Benchmark]: TraceAbstraction took 244111.86ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 47.8MB in the end (delta: -11.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,859 INFO L158 Benchmark]: Witness Printer took 64.73ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:29:36,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 47.2MB in the end (delta: 30.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.05ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 49.3MB in the end (delta: -2.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.24ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 47.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 46.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10993.86ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 37.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 244111.86ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 47.8MB in the end (delta: -11.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Witness Printer took 64.73ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=-1.1654444932937622] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.1654444932937622, \result=-0.9201117753982544, x=-1.1654444932937622] [L42] RET, EXPR f(IN) VAL [f(IN)=-0.9201117753982544, IN=-1.1654444932937622] [L42] CALL, EXPR fp(IN) VAL [\old(x)=-1.1654444932937622] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1654444932937622, \result=0.40121957659721375, x=-1.1654444932937622] [L42] RET, EXPR fp(IN) VAL [f(IN)=-0.9201117753982544, fp(IN)=0.40121957659721375, IN=-1.1654444932937622] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=1.1278427839279175] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.1278427839279175, \result=0.9044027924537659, x=1.1278427839279175] [L44] RET, EXPR f(x) VAL [f(x)=0.9044027924537659, IN=-1.1654444932937622, x=1.1278427839279175] [L44] CALL, EXPR fp(x) VAL [\old(x)=1.1278427839279175] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1278427839279175, \result=0.43426305055618286, x=1.1278427839279175] [L44] RET, EXPR fp(x) VAL [f(x)=0.9044027924537659, fp(x)=0.43426305055618286, IN=-1.1654444932937622, x=1.1278427839279175] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=-0.9547723531723022] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.9547723531723022, \result=-0.8164674639701843, x=-0.9547723531723022] [L46] RET, EXPR f(x) VAL [f(x)=-0.8164674639701843, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] CALL, EXPR fp(x) VAL [\old(x)=-0.9547723531723022] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9547723531723022, \result=0.5798819065093994, x=-0.9547723531723022] [L46] RET, EXPR fp(x) VAL [f(x)=-0.8164674639701843, fp(x)=0.5798819065093994, IN=-1.1654444932937622, x=-0.9547723531723022] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1654444932937622, x=0.45321691036224365] [L51] reach_error() VAL [IN=-1.1654444932937622, x=0.45321691036224365] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 244.0s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 45.4s 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 13:29:36,993 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