./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_2_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 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:12:41,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:12:41,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:12:41,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:12:41,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:12:41,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:12:41,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:12:41,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:12:41,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:12:41,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:12:42,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:12:42,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:12:42,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:12:42,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:12:42,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:12:42,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:12:42,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:12:42,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:12:42,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:12:42,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:12:42,015 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:12:42,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:12:42,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:12:42,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:12:42,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:12:42,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:12:42,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:12:42,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:12:42,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:12:42,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:12:42,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:12:42,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:12:42,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:12:42,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:12:42,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:12:42,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:12:42,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:12:42,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:12:42,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:12:42,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:12:42,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:12:42,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:12:42,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:12:42,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:12:42,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:12:42,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:12:42,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:12:42,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:12:42,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:12:42,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:12:42,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:12:42,057 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:12:42,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:12:42,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:12:42,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:12:42,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:12:42,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:12:42,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:12:42,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:12:42,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:12:42,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:12:42,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:42,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:12:42,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:12:42,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:12:42,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:12:42,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:12:42,061 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:12:42,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:12:42,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:12:42,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2022-07-12 02:12:42,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:12:42,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:12:42,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:12:42,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:12:42,265 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:12:42,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-12 02:12:42,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde9feb23/787486d20f6c414f92da1f2a33509444/FLAG468a85050 [2022-07-12 02:12:42,709 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:12:42,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-12 02:12:42,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde9feb23/787486d20f6c414f92da1f2a33509444/FLAG468a85050 [2022-07-12 02:12:42,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde9feb23/787486d20f6c414f92da1f2a33509444 [2022-07-12 02:12:42,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:12:42,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:12:42,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:42,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:12:42,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:12:42,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d83d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42, skipping insertion in model container [2022-07-12 02:12:42,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:12:42,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:12:42,873 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_2_7.i[1743,1756] [2022-07-12 02:12:42,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:42,886 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:12:42,905 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_2_7.i[1743,1756] [2022-07-12 02:12:42,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:42,918 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:12:42,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42 WrapperNode [2022-07-12 02:12:42,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:42,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:42,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:12:42,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:12:42,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,950 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-07-12 02:12:42,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:42,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:12:42,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:12:42,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:12:42,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:12:42,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:12:42,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:12:42,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:12:42,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (1/1) ... [2022-07-12 02:12:42,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:12:43,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:12:43,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:12:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:12:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:12:43,061 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:12:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:12:43,061 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:12:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:12:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:12:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:12:43,104 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:12:43,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:43,168 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:43,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:43,173 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:43,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43 BoogieIcfgContainer [2022-07-12 02:12:43,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:43,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:43,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:43,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:43,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:12:42" (1/3) ... [2022-07-12 02:12:43,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407cb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:43, skipping insertion in model container [2022-07-12 02:12:43,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:42" (2/3) ... [2022-07-12 02:12:43,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407cb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:43, skipping insertion in model container [2022-07-12 02:12:43,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43" (3/3) ... [2022-07-12 02:12:43,180 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2022-07-12 02:12:43,190 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:43,190 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:43,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:43,272 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@6bac91b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70a7e010 [2022-07-12 02:12:43,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:43,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:43,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:43,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:43,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-12 02:12:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:12:43,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065016322] [2022-07-12 02:12:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:12:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 02:12:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 02:12:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 02:12:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 02:12:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-12 02:12:43,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:12:43,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065016322] [2022-07-12 02:12:43,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065016322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:43,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:43,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299608274] [2022-07-12 02:12:43,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:43,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:43,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:12:43,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:43,482 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:43,495 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-12 02:12:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-12 02:12:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:43,501 INFO L225 Difference]: With dead ends: 43 [2022-07-12 02:12:43,506 INFO L226 Difference]: Without dead ends: 19 [2022-07-12 02:12:43,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:43,517 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:12:43,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:12:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-12 02:12:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-12 02:12:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-12 02:12:43,569 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-12 02:12:43,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:43,569 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-12 02:12:43,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-12 02:12:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:43,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:43,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:43,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:12:43,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:43,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-12 02:12:43,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:12:43,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602210301] [2022-07-12 02:12:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:43,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:12:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:43,590 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:12:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:43,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:12:43,626 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:12:43,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:12:43,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:12:43,631 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:12:43,634 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:12:43,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:12:43 BoogieIcfgContainer [2022-07-12 02:12:43,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:12:43,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:12:43,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:12:43,652 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:12:43,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43" (3/4) ... [2022-07-12 02:12:43,655 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:12:43,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:12:43,656 INFO L158 Benchmark]: Toolchain (without parser) took 928.46ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 80.7MB in the beginning and 113.6MB in the end (delta: -32.9MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-07-12 02:12:43,656 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:43,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.51ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 85.3MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:12:43,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.78ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 83.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:43,659 INFO L158 Benchmark]: Boogie Preprocessor took 28.58ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:43,659 INFO L158 Benchmark]: RCFGBuilder took 194.53ms. Allocated memory is still 111.1MB. Free memory was 82.4MB in the beginning and 74.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:12:43,659 INFO L158 Benchmark]: TraceAbstraction took 476.02ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 73.3MB in the beginning and 113.6MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:43,660 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 146.8MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:43,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.51ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 85.3MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.78ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 83.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.58ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 194.53ms. Allocated memory is still 111.1MB. Free memory was 82.4MB in the beginning and 74.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 476.02ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 73.3MB in the beginning and 113.6MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 146.8MB. Free memory is still 113.6MB. 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 44. 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)=49] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) VAL [f(IN)=50, IN=49] [L42] CALL, EXPR fp(IN) VAL [\old(x)=49] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) VAL [f(IN)=50, fp(IN)=53, IN=49] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=51] [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)=51, x=51] [L44] RET, EXPR f(x) VAL [f(x)=52, IN=49, x=51] [L44] CALL, EXPR fp(x) VAL [\old(x)=51] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L44] RET, EXPR fp(x) VAL [f(x)=52, fp(x)=54, IN=49, x=51] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 02:12:43,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_2_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 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:12:45,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:12:45,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:12:45,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:12:45,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:12:45,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:12:45,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:12:45,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:12:45,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:12:45,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:12:45,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:12:45,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:12:45,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:12:45,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:12:45,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:12:45,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:12:45,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:12:45,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:12:45,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:12:45,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:12:45,631 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:12:45,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:12:45,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:12:45,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:12:45,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:12:45,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:12:45,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:12:45,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:12:45,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:12:45,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:12:45,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:12:45,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:12:45,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:12:45,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:12:45,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:12:45,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:12:45,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:12:45,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:12:45,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:12:45,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:12:45,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:12:45,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:12:45,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:12:45,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:12:45,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:12:45,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:12:45,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:12:45,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:12:45,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:12:45,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:12:45,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:12:45,661 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:12:45,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:12:45,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:12:45,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:12:45,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:12:45,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:12:45,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:12:45,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:12:45,664 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:12:45,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:12:45,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:12:45,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:12:45,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:12:45,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:45,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:12:45,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:12:45,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:12:45,665 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:12:45,665 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:12:45,665 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:12:45,666 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:12:45,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:12:45,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:12:45,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2022-07-12 02:12:45,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:12:45,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:12:45,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:12:45,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:12:45,939 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:12:45,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-12 02:12:46,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94fc22bc5/98bc01fb492a433abbc88855aa08b0e3/FLAGc44e3dbc0 [2022-07-12 02:12:46,371 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:12:46,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2022-07-12 02:12:46,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94fc22bc5/98bc01fb492a433abbc88855aa08b0e3/FLAGc44e3dbc0 [2022-07-12 02:12:46,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94fc22bc5/98bc01fb492a433abbc88855aa08b0e3 [2022-07-12 02:12:46,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:12:46,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:12:46,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:46,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:12:46,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:12:46,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:46,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d12ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46, skipping insertion in model container [2022-07-12 02:12:46,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:46,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:12:46,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:12:46,912 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_2_7.i[1743,1756] [2022-07-12 02:12:46,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:46,921 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:12:46,932 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_2_7.i[1743,1756] [2022-07-12 02:12:46,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:46,949 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:12:46,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46 WrapperNode [2022-07-12 02:12:46,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:46,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:46,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:12:46,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:12:46,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:46,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:46,982 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-07-12 02:12:46,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:46,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:12:46,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:12:46,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:12:46,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:46,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:12:47,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:12:47,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:12:47,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:12:47,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (1/1) ... [2022-07-12 02:12:47,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:47,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:12:47,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:12:47,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:12:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:12:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:12:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:12:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:12:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:12:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:12:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:12:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:12:47,218 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:12:47,219 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:55,211 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:55,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:55,215 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:55,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55 BoogieIcfgContainer [2022-07-12 02:12:55,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:55,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:55,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:55,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:55,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:12:46" (1/3) ... [2022-07-12 02:12:55,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffae11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:55, skipping insertion in model container [2022-07-12 02:12:55,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:46" (2/3) ... [2022-07-12 02:12:55,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffae11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:55, skipping insertion in model container [2022-07-12 02:12:55,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55" (3/3) ... [2022-07-12 02:12:55,239 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2022-07-12 02:12:55,254 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:55,254 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:55,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:55,335 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@4f40c5fc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@732a7aa5 [2022-07-12 02:12:55,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:55,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:55,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:55,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:55,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:55,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:55,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-12 02:12:55,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:55,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688553677] [2022-07-12 02:12:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:55,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:55,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:55,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:12:55,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:12:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:57,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:12:57,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:12:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-12 02:12:57,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:12:57,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:12:57,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688553677] [2022-07-12 02:12:57,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688553677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:57,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:57,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:57,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037628142] [2022-07-12 02:12:57,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:57,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:57,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:12:57,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:57,382 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:57,398 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-12 02:12:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:57,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-12 02:12:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:57,405 INFO L225 Difference]: With dead ends: 43 [2022-07-12 02:12:57,406 INFO L226 Difference]: Without dead ends: 19 [2022-07-12 02:12:57,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:57,413 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:12:57,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:12:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-12 02:12:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-12 02:12:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:57,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-12 02:12:57,463 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-12 02:12:57,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:57,463 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-12 02:12:57,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:57,464 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-12 02:12:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:57,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:57,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:57,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:12:57,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:12:57,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-12 02:12:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:57,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82552913] [2022-07-12 02:12:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:57,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:57,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:57,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:12:57,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:14:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:14:08,950 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:15:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:15:03,788 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 02:15:03,788 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:15:03,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:15:03,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 02:15:03,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:15:03,994 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:15:03,996 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:15:04,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:15:04 BoogieIcfgContainer [2022-07-12 02:15:04,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:15:04,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:15:04,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:15:04,034 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:15:04,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55" (3/4) ... [2022-07-12 02:15:04,036 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 02:15:04,068 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:15:04,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:15:04,069 INFO L158 Benchmark]: Toolchain (without parser) took 137267.84ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 33.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-12 02:15:04,073 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:15:04,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.78ms. Allocated memory is still 60.8MB. Free memory was 45.2MB in the beginning and 44.1MB in the end (delta: 1.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-07-12 02:15:04,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.70ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:15:04,074 INFO L158 Benchmark]: Boogie Preprocessor took 41.91ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:15:04,074 INFO L158 Benchmark]: RCFGBuilder took 8191.27ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:15:04,075 INFO L158 Benchmark]: TraceAbstraction took 128815.86ms. Allocated memory is still 60.8MB. Free memory was 31.9MB in the beginning and 35.7MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:15:04,075 INFO L158 Benchmark]: Witness Printer took 34.62ms. Allocated memory is still 60.8MB. Free memory was 35.7MB in the beginning and 33.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:15:04,077 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 48.2MB. Free memory was 28.9MB in the beginning and 28.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.78ms. Allocated memory is still 60.8MB. Free memory was 45.2MB in the beginning and 44.1MB in the end (delta: 1.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.70ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.91ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 8191.27ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 128815.86ms. Allocated memory is still 60.8MB. Free memory was 31.9MB in the beginning and 35.7MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.62ms. Allocated memory is still 60.8MB. Free memory was 35.7MB in the beginning and 33.7MB in the end (delta: 2.1MB). 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)=1.343371033668518] [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)=1.343371033668518, \result=0.9773446321487427, x=1.343371033668518] [L42] RET, EXPR f(IN) VAL [f(IN)=0.9773446321487427, IN=1.343371033668518] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.343371033668518] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.343371033668518, \result=0.24153776466846466, x=1.343371033668518] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.9773446321487427, fp(IN)=0.24153776466846466, IN=1.343371033668518] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=-2.702971935272217] [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)=-2.702971935272217, \result=-0.8231160640716553, x=-2.702971935272217] [L44] RET, EXPR f(x) VAL [f(x)=-0.8231160640716553, IN=1.343371033668518, x=-2.702971935272217] [L44] CALL, EXPR fp(x) VAL [\old(x)=-2.702971935272217] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-2.702971935272217, \result=0.11272174119949341, x=-2.702971935272217] [L44] RET, EXPR fp(x) VAL [f(x)=-0.8231160640716553, fp(x)=0.11272174119949341, IN=1.343371033668518, x=-2.702971935272217] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.343371033668518, x=4.599222660064697] [L51] reach_error() VAL [IN=1.343371033668518, x=4.599222660064697] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 128.7s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 72.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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! [2022-07-12 02:15:04,214 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