./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 00:57:51,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 00:57:51,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 00:57:51,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 00:57:51,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 00:57:51,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 00:57:51,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 00:57:51,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 00:57:51,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 00:57:51,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 00:57:51,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 00:57:51,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 00:57:51,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 00:57:51,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 00:57:51,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 00:57:51,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 00:57:51,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 00:57:51,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 00:57:51,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 00:57:51,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 00:57:51,872 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 00:57:51,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 00:57:51,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 00:57:51,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 00:57:51,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 00:57:51,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 00:57:51,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 00:57:51,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 00:57:51,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 00:57:51,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 00:57:51,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 00:57:51,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 00:57:51,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 00:57:51,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 00:57:51,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 00:57:51,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 00:57:51,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 00:57:51,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 00:57:51,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 00:57:51,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 00:57:51,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 00:57:51,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 00:57:51,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 00:57:51,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 00:57:51,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 00:57:51,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 00:57:51,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 00:57:51,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 00:57:51,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 00:57:51,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 00:57:51,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 00:57:51,921 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 00:57:51,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 00:57:51,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 00:57:51,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 00:57:51,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 00:57:51,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 00:57:51,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 00:57:51,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 00:57:51,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 00:57:51,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 00:57:51,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 00:57:51,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:57:51,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 00:57:51,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 00:57:51,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 00:57:51,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 00:57:51,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 00:57:51,925 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 00:57:51,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 00:57:51,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 00:57:51,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-07-21 00:57:52,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 00:57:52,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 00:57:52,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 00:57:52,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 00:57:52,205 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 00:57:52,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-21 00:57:52,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b469003/a406fa91ea114d68a489b1f869a34a1a/FLAG7a4a73df7 [2022-07-21 00:57:52,618 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 00:57:52,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-21 00:57:52,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b469003/a406fa91ea114d68a489b1f869a34a1a/FLAG7a4a73df7 [2022-07-21 00:57:52,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b469003/a406fa91ea114d68a489b1f869a34a1a [2022-07-21 00:57:52,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 00:57:52,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 00:57:52,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 00:57:52,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 00:57:52,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 00:57:52,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3176cf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52, skipping insertion in model container [2022-07-21 00:57:52,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 00:57:52,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 00:57:52,742 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_8.i[1743,1756] [2022-07-21 00:57:52,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:57:52,748 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 00:57:52,804 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_8.i[1743,1756] [2022-07-21 00:57:52,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:57:52,814 INFO L208 MainTranslator]: Completed translation [2022-07-21 00:57:52,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52 WrapperNode [2022-07-21 00:57:52,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 00:57:52,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 00:57:52,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 00:57:52,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 00:57:52,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,839 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-07-21 00:57:52,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 00:57:52,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 00:57:52,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 00:57:52,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 00:57:52,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 00:57:52,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 00:57:52,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 00:57:52,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 00:57:52,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (1/1) ... [2022-07-21 00:57:52,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:57:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:57:52,929 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) [2022-07-21 00:57:52,955 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 [2022-07-21 00:57:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 00:57:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-21 00:57:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-21 00:57:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-21 00:57:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-21 00:57:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 00:57:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 00:57:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 00:57:53,012 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 00:57:53,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 00:57:53,125 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 00:57:53,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 00:57:53,129 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 00:57:53,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:57:53 BoogieIcfgContainer [2022-07-21 00:57:53,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 00:57:53,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 00:57:53,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 00:57:53,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 00:57:53,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:57:52" (1/3) ... [2022-07-21 00:57:53,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277edb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:57:53, skipping insertion in model container [2022-07-21 00:57:53,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:52" (2/3) ... [2022-07-21 00:57:53,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277edb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:57:53, skipping insertion in model container [2022-07-21 00:57:53,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:57:53" (3/3) ... [2022-07-21 00:57:53,146 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-07-21 00:57:53,160 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 00:57:53,160 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 00:57:53,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 00:57:53,203 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@48b81452, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60ee1093 [2022-07-21 00:57:53,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 00:57:53,213 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) [2022-07-21 00:57:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 00:57:53,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:57:53,219 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] [2022-07-21 00:57:53,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:57:53,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:57:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-21 00:57:53,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:57:53,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007113884] [2022-07-21 00:57:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:57:53,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:57:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:57:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 00:57:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:57:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 00:57:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:57:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 00:57:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:57:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 00:57:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:57:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-21 00:57:53,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:57:53,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007113884] [2022-07-21 00:57:53,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007113884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:57:53,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:57:53,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 00:57:53,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683267245] [2022-07-21 00:57:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:57:53,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 00:57:53,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:57:53,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 00:57:53,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 00:57:53,396 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) [2022-07-21 00:57:53,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:57:53,409 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-21 00:57:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 00:57:53,411 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 [2022-07-21 00:57:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:57:53,415 INFO L225 Difference]: With dead ends: 43 [2022-07-21 00:57:53,416 INFO L226 Difference]: Without dead ends: 19 [2022-07-21 00:57:53,418 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 [2022-07-21 00:57:53,421 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 [2022-07-21 00:57:53,422 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] [2022-07-21 00:57:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-21 00:57:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-21 00:57:53,459 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) [2022-07-21 00:57:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-21 00:57:53,461 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-21 00:57:53,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:57:53,461 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-21 00:57:53,462 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) [2022-07-21 00:57:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-21 00:57:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 00:57:53,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:57:53,466 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] [2022-07-21 00:57:53,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 00:57:53,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:57:53,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:57:53,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-21 00:57:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:57:53,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911222985] [2022-07-21 00:57:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:57:53,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:57:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:57:53,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 00:57:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:57:53,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 00:57:53,543 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 00:57:53,545 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 00:57:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 00:57:53,551 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 00:57:53,554 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 00:57:53,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:57:53 BoogieIcfgContainer [2022-07-21 00:57:53,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 00:57:53,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 00:57:53,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 00:57:53,580 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 00:57:53,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:57:53" (3/4) ... [2022-07-21 00:57:53,583 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 00:57:53,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 00:57:53,584 INFO L158 Benchmark]: Toolchain (without parser) took 939.32ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 39.2MB in the end (delta: -6.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-07-21 00:57:53,584 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 29.3MB in the beginning and 29.3MB in the end (delta: 32.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:53,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.43ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 32.8MB in the beginning and 43.6MB in the end (delta: -10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 00:57:53,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:53,589 INFO L158 Benchmark]: Boogie Preprocessor took 30.32ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 41.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:57:53,590 INFO L158 Benchmark]: RCFGBuilder took 258.27ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 00:57:53,591 INFO L158 Benchmark]: TraceAbstraction took 447.80ms. Allocated memory is still 60.8MB. Free memory was 32.0MB in the beginning and 39.5MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:53,593 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.2MB in the end (delta: 311.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:57:53,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 29.3MB in the beginning and 29.3MB in the end (delta: 32.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.43ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 32.8MB in the beginning and 43.6MB in the end (delta: -10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.32ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 41.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.27ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 447.80ms. Allocated memory is still 60.8MB. Free memory was 32.0MB in the beginning and 39.5MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.2MB in the end (delta: 311.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=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, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2022-07-21 00:57:53,627 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_8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 00:57:55,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 00:57:55,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 00:57:55,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 00:57:55,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 00:57:55,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 00:57:55,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 00:57:55,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 00:57:55,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 00:57:55,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 00:57:55,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 00:57:55,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 00:57:55,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 00:57:55,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 00:57:55,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 00:57:55,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 00:57:55,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 00:57:55,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 00:57:55,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 00:57:55,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 00:57:55,525 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 00:57:55,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 00:57:55,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 00:57:55,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 00:57:55,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 00:57:55,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 00:57:55,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 00:57:55,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 00:57:55,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 00:57:55,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 00:57:55,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 00:57:55,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 00:57:55,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 00:57:55,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 00:57:55,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 00:57:55,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 00:57:55,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 00:57:55,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 00:57:55,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 00:57:55,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 00:57:55,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 00:57:55,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 00:57:55,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 00:57:55,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 00:57:55,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 00:57:55,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 00:57:55,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 00:57:55,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 00:57:55,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 00:57:55,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 00:57:55,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 00:57:55,575 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 00:57:55,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 00:57:55,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 00:57:55,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 00:57:55,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 00:57:55,576 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 00:57:55,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 00:57:55,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 00:57:55,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 00:57:55,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 00:57:55,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 00:57:55,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 00:57:55,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 00:57:55,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:57:55,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 00:57:55,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 00:57:55,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 00:57:55,578 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 00:57:55,579 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 00:57:55,579 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 00:57:55,579 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 00:57:55,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 00:57:55,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 00:57:55,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-07-21 00:57:55,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 00:57:55,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 00:57:55,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 00:57:55,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 00:57:55,845 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 00:57:55,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-21 00:57:55,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e219df416/ef1dff5b55ac4c8da889970a0761e56d/FLAGc7f458129 [2022-07-21 00:57:56,260 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 00:57:56,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-21 00:57:56,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e219df416/ef1dff5b55ac4c8da889970a0761e56d/FLAGc7f458129 [2022-07-21 00:57:56,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e219df416/ef1dff5b55ac4c8da889970a0761e56d [2022-07-21 00:57:56,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 00:57:56,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 00:57:56,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 00:57:56,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 00:57:56,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 00:57:56,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72debabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56, skipping insertion in model container [2022-07-21 00:57:56,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 00:57:56,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 00:57:56,431 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_8.i[1743,1756] [2022-07-21 00:57:56,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:57:56,458 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 00:57:56,488 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_8.i[1743,1756] [2022-07-21 00:57:56,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:57:56,502 INFO L208 MainTranslator]: Completed translation [2022-07-21 00:57:56,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56 WrapperNode [2022-07-21 00:57:56,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 00:57:56,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 00:57:56,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 00:57:56,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 00:57:56,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,536 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-07-21 00:57:56,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 00:57:56,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 00:57:56,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 00:57:56,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 00:57:56,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 00:57:56,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 00:57:56,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 00:57:56,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 00:57:56,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (1/1) ... [2022-07-21 00:57:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:57:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:57:56,637 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) [2022-07-21 00:57:56,665 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 [2022-07-21 00:57:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 00:57:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-21 00:57:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-21 00:57:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 00:57:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-21 00:57:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-21 00:57:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 00:57:56,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 00:57:56,729 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 00:57:56,730 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 00:58:04,576 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 00:58:04,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 00:58:04,580 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 00:58:04,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:58:04 BoogieIcfgContainer [2022-07-21 00:58:04,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 00:58:04,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 00:58:04,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 00:58:04,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 00:58:04,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:57:56" (1/3) ... [2022-07-21 00:58:04,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d5ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:58:04, skipping insertion in model container [2022-07-21 00:58:04,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:57:56" (2/3) ... [2022-07-21 00:58:04,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9d5ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:58:04, skipping insertion in model container [2022-07-21 00:58:04,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:58:04" (3/3) ... [2022-07-21 00:58:04,588 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-07-21 00:58:04,597 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 00:58:04,597 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 00:58:04,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 00:58:04,653 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@71663b6f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49ed6d6d [2022-07-21 00:58:04,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 00:58:04,655 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) [2022-07-21 00:58:04,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 00:58:04,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:58:04,660 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] [2022-07-21 00:58:04,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:58:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:58:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-21 00:58:04,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 00:58:04,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566463209] [2022-07-21 00:58:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:58:04,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 00:58:04,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 00:58:04,677 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) [2022-07-21 00:58:04,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 00:58:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:58:06,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 00:58:06,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:58:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-21 00:58:06,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:58:06,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 00:58:06,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566463209] [2022-07-21 00:58:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566463209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:58:06,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:58:06,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 00:58:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232685631] [2022-07-21 00:58:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:58:06,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 00:58:06,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 00:58:06,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 00:58:06,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 00:58:06,500 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) [2022-07-21 00:58:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:58:06,528 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-21 00:58:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 00:58:06,530 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 [2022-07-21 00:58:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:58:06,534 INFO L225 Difference]: With dead ends: 43 [2022-07-21 00:58:06,534 INFO L226 Difference]: Without dead ends: 19 [2022-07-21 00:58:06,539 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 [2022-07-21 00:58:06,542 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 [2022-07-21 00:58:06,543 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] [2022-07-21 00:58:06,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-21 00:58:06,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-21 00:58:06,564 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) [2022-07-21 00:58:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-21 00:58:06,566 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-21 00:58:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:58:06,566 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-21 00:58:06,566 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) [2022-07-21 00:58:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-21 00:58:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 00:58:06,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:58:06,568 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] [2022-07-21 00:58:06,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 00:58:06,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 00:58:06,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:58:06,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:58:06,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-21 00:58:06,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 00:58:06,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910653676] [2022-07-21 00:58:06,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:58:06,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 00:58:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 00:58:06,784 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) [2022-07-21 00:58:06,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 00:59:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:59:13,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 00:59:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:59:22,886 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 00:59:22,887 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 00:59:22,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 00:59:22,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 00:59:23,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 00:59:23,098 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 00:59:23,101 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 00:59:23,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:59:23 BoogieIcfgContainer [2022-07-21 00:59:23,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 00:59:23,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 00:59:23,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 00:59:23,128 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 00:59:23,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:58:04" (3/4) ... [2022-07-21 00:59:23,130 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 00:59:23,175 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 00:59:23,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 00:59:23,178 INFO L158 Benchmark]: Toolchain (without parser) took 86899.24ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 43.9MB in the end (delta: -8.4MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-07-21 00:59:23,181 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:59:23,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.54ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 38.6MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 00:59:23,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:59:23,182 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:59:23,182 INFO L158 Benchmark]: RCFGBuilder took 8008.01ms. Allocated memory is still 56.6MB. Free memory was 35.7MB in the beginning and 26.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 00:59:23,183 INFO L158 Benchmark]: TraceAbstraction took 78542.84ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 46.1MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:59:23,183 INFO L158 Benchmark]: Witness Printer took 50.79ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 43.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:59:23,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.54ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 38.6MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8008.01ms. Allocated memory is still 56.6MB. Free memory was 35.7MB in the beginning and 26.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 78542.84ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 46.1MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.79ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 43.9MB 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.8832679986953735] [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)=1.8832679986953735, \result=0.9841227531433105, x=1.8832679986953735] [L42] RET, EXPR f(IN) VAL [f(IN)=0.9841227531433105, IN=1.8832679986953735] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.8832679986953735] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.8832679986953735, \result=-0.18725715577602386, x=1.8832679986953735] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.9841227531433105, fp(IN)=-0.18725715577602386, IN=1.8832679986953735] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=7.138729095458984] [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)=7.138729095458984, \result=288.46661376953125, x=7.138729095458984] [L44] RET, EXPR f(x) VAL [f(x)=288.46661376953125, IN=1.8832679986953735, x=7.138729095458984] [L44] CALL, EXPR fp(x) VAL [\old(x)=7.138729095458984] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=7.138729095458984, \result=267.55059814453125, x=7.138729095458984] [L44] RET, EXPR fp(x) VAL [f(x)=288.46661376953125, fp(x)=267.55059814453125, IN=1.8832679986953735, x=7.138729095458984] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.8832679986953735, x=6.060553073883057] [L51] reach_error() VAL [IN=1.8832679986953735, x=6.060553073883057] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 78.5s, 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, 68.3s 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! [2022-07-21 00:59:23,311 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE