./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:58:05,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:58:05,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:58:05,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:58:05,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:58:05,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:58:05,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:58:05,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:58:05,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:58:05,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:58:05,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:58:05,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:58:05,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:58:05,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:58:05,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:58:05,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:58:05,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:58:05,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:58:05,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:58:05,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:58:05,929 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:58:05,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:58:05,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:58:05,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:58:05,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:58:05,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:58:05,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:58:05,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:58:05,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:58:05,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:58:05,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:58:05,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:58:05,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:58:05,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:58:05,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:58:05,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:58:05,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:58:05,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:58:05,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:58:05,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:58:05,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:58:05,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:58:05,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 13:58:05,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:58:05,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:58:05,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:58:05,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:58:05,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:58:05,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:58:05,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:58:05,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:58:05,990 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:58:05,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:58:05,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:58:05,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 13:58:05,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:58:05,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:58:05,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:58:05,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:58:05,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:58:05,993 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:58:05,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:58:05,993 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:58:05,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:58:05,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:58:05,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:58:05,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:58:05,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:58:05,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:58:05,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:58:05,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:58:05,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 13:58:05,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 13:58:05,995 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:58:05,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:58:05,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:58:05,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2022-07-13 13:58:06,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:58:06,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:58:06,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:58:06,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:58:06,240 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:58:06,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-07-13 13:58:06,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e1af0cc/d7c89ae1800b4cf3b010c40c4f0be3e5/FLAG46f901f7b [2022-07-13 13:58:06,744 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:58:06,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-07-13 13:58:06,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e1af0cc/d7c89ae1800b4cf3b010c40c4f0be3e5/FLAG46f901f7b [2022-07-13 13:58:06,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e1af0cc/d7c89ae1800b4cf3b010c40c4f0be3e5 [2022-07-13 13:58:06,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:58:06,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:58:06,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:58:06,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:58:06,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:58:06,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:58:06" (1/1) ... [2022-07-13 13:58:06,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1419763d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:06, skipping insertion in model container [2022-07-13 13:58:06,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:58:06" (1/1) ... [2022-07-13 13:58:06,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:58:06,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:58:06,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-07-13 13:58:06,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:58:06,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:58:07,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-07-13 13:58:07,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:58:07,030 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:58:07,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07 WrapperNode [2022-07-13 13:58:07,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:58:07,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:58:07,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:58:07,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:58:07,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,061 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-07-13 13:58:07,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:58:07,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:58:07,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:58:07,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:58:07,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:58:07,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:58:07,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:58:07,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:58:07,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (1/1) ... [2022-07-13 13:58:07,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:58:07,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:58:07,132 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) [2022-07-13 13:58:07,155 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 [2022-07-13 13:58:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:58:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-13 13:58:07,177 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-13 13:58:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-13 13:58:07,177 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-13 13:58:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 13:58:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:58:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:58:07,231 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:58:07,234 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:58:07,365 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:58:07,370 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:58:07,371 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:58:07,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:58:07 BoogieIcfgContainer [2022-07-13 13:58:07,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:58:07,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:58:07,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:58:07,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:58:07,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:58:06" (1/3) ... [2022-07-13 13:58:07,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1c785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:58:07, skipping insertion in model container [2022-07-13 13:58:07,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:07" (2/3) ... [2022-07-13 13:58:07,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1c785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:58:07, skipping insertion in model container [2022-07-13 13:58:07,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:58:07" (3/3) ... [2022-07-13 13:58:07,388 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2022-07-13 13:58:07,404 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:58:07,404 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:58:07,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:58:07,490 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@31a79d80, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e088aa4 [2022-07-13 13:58:07,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:58:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 13:58:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 13:58:07,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:58:07,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:58:07,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:58:07,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:58:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-13 13:58:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:58:07,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392126766] [2022-07-13 13:58:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:58:07,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:58:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 13:58:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 13:58:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 13:58:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 13:58:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 13:58:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 13:58:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 13:58:07,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:58:07,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392126766] [2022-07-13 13:58:07,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392126766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:58:07,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:58:07,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:58:07,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56192658] [2022-07-13 13:58:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:58:07,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:58:07,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:58:07,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:58:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:58:07,773 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-13 13:58:07,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:58:07,793 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-13 13:58:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:58:07,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-07-13 13:58:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:58:07,805 INFO L225 Difference]: With dead ends: 49 [2022-07-13 13:58:07,805 INFO L226 Difference]: Without dead ends: 22 [2022-07-13 13:58:07,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:58:07,813 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 13:58:07,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 13:58:07,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-13 13:58:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-13 13:58:07,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 13:58:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-13 13:58:07,853 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-13 13:58:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:58:07,853 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-13 13:58:07,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-13 13:58:07,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-13 13:58:07,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 13:58:07,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:58:07,857 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:58:07,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 13:58:07,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:58:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:58:07,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-13 13:58:07,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:58:07,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103955753] [2022-07-13 13:58:07,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:58:07,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:58:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:58:07,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:58:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:58:07,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 13:58:07,948 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:58:07,950 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:58:07,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 13:58:07,959 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:58:07,962 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:58:07,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:58:07 BoogieIcfgContainer [2022-07-13 13:58:07,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:58:07,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:58:07,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:58:07,998 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:58:07,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:58:07" (3/4) ... [2022-07-13 13:58:08,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 13:58:08,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:58:08,003 INFO L158 Benchmark]: Toolchain (without parser) took 1230.18ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 59.5MB in the beginning and 68.9MB in the end (delta: -9.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-07-13 13:58:08,004 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:58:08,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.79ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 66.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:58:08,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.59ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 65.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:58:08,012 INFO L158 Benchmark]: Boogie Preprocessor took 36.18ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 64.2MB in the end (delta: 840.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:58:08,013 INFO L158 Benchmark]: RCFGBuilder took 273.30ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 55.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 13:58:08,013 INFO L158 Benchmark]: TraceAbstraction took 623.48ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.6MB in the beginning and 69.3MB in the end (delta: -14.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-07-13 13:58:08,014 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 68.9MB in the end (delta: 439.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:58:08,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.79ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 66.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.59ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 65.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.18ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 64.2MB in the end (delta: 840.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.30ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 55.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 623.48ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.6MB in the beginning and 69.3MB in the end (delta: -14.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 68.9MB in the end (delta: 439.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=50] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR f(IN) VAL [f(IN)=51, IN=50] [L42] CALL, EXPR fp(IN) VAL [\old(x)=50] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR fp(IN) VAL [f(IN)=51, fp(IN)=55, IN=50] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=52] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=52, x=52] [L44] RET, EXPR f(x) VAL [f(x)=53, IN=50, x=52] [L44] CALL, EXPR fp(x) VAL [\old(x)=52] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L44] RET, EXPR fp(x) VAL [f(x)=53, fp(x)=56, IN=50, x=52] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54, x=54] [L46] RET, EXPR f(x) VAL [f(x)=57, IN=50, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L46] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=49, IN=50, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=50] [L51] reach_error() VAL [IN=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 13:58:08,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:58:09,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:58:09,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:58:10,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:58:10,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:58:10,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:58:10,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:58:10,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:58:10,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:58:10,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:58:10,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:58:10,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:58:10,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:58:10,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:58:10,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:58:10,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:58:10,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:58:10,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:58:10,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:58:10,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:58:10,063 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:58:10,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:58:10,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:58:10,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:58:10,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:58:10,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:58:10,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:58:10,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:58:10,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:58:10,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:58:10,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:58:10,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:58:10,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:58:10,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:58:10,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:58:10,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:58:10,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:58:10,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:58:10,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:58:10,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:58:10,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:58:10,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:58:10,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 13:58:10,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:58:10,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:58:10,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:58:10,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:58:10,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:58:10,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:58:10,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:58:10,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:58:10,124 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:58:10,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:58:10,125 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:58:10,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:58:10,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:58:10,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:58:10,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:58:10,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:58:10,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 13:58:10,136 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 13:58:10,136 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 13:58:10,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:58:10,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:58:10,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:58:10,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:58:10,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:58:10,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:58:10,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:58:10,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:58:10,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:58:10,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:58:10,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:58:10,139 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 13:58:10,139 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 13:58:10,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:58:10,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:58:10,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:58:10,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 13:58:10,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2022-07-13 13:58:10,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:58:10,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:58:10,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:58:10,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:58:10,485 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:58:10,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-07-13 13:58:10,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d287c686d/15fbec8e69d340529c4c8492e46d8048/FLAG7e23b6a52 [2022-07-13 13:58:10,982 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:58:10,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2022-07-13 13:58:10,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d287c686d/15fbec8e69d340529c4c8492e46d8048/FLAG7e23b6a52 [2022-07-13 13:58:11,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d287c686d/15fbec8e69d340529c4c8492e46d8048 [2022-07-13 13:58:11,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:58:11,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:58:11,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:58:11,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:58:11,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:58:11,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320fa073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11, skipping insertion in model container [2022-07-13 13:58:11,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:58:11,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:58:11,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-07-13 13:58:11,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:58:11,570 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:58:11,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2022-07-13 13:58:11,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:58:11,611 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:58:11,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11 WrapperNode [2022-07-13 13:58:11,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:58:11,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:58:11,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:58:11,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:58:11,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,655 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-13 13:58:11,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:58:11,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:58:11,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:58:11,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:58:11,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:58:11,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:58:11,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:58:11,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:58:11,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (1/1) ... [2022-07-13 13:58:11,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:58:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:58:11,736 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) [2022-07-13 13:58:11,751 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 [2022-07-13 13:58:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:58:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-13 13:58:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-13 13:58:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 13:58:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-13 13:58:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-13 13:58:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:58:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:58:11,844 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:58:11,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:58:21,246 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:58:21,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:58:21,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:58:21,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:58:21 BoogieIcfgContainer [2022-07-13 13:58:21,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:58:21,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:58:21,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:58:21,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:58:21,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:58:11" (1/3) ... [2022-07-13 13:58:21,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566e22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:58:21, skipping insertion in model container [2022-07-13 13:58:21,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:58:11" (2/3) ... [2022-07-13 13:58:21,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566e22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:58:21, skipping insertion in model container [2022-07-13 13:58:21,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:58:21" (3/3) ... [2022-07-13 13:58:21,260 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2022-07-13 13:58:21,272 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:58:21,272 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:58:21,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:58:21,330 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@65f1d1dc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29b21c1d [2022-07-13 13:58:21,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:58:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 13:58:21,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 13:58:21,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:58:21,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:58:21,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:58:21,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:58:21,346 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-07-13 13:58:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:58:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994355676] [2022-07-13 13:58:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:58:21,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:58:21,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:58:21,361 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) [2022-07-13 13:58:21,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 13:58:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:58:23,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 13:58:23,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:58:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 13:58:23,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:58:23,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 13:58:23,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994355676] [2022-07-13 13:58:23,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994355676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:58:23,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:58:23,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:58:23,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873977796] [2022-07-13 13:58:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:58:23,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:58:23,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 13:58:24,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:58:24,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:58:24,003 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-13 13:58:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:58:24,019 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-07-13 13:58:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:58:24,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-07-13 13:58:24,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:58:24,026 INFO L225 Difference]: With dead ends: 49 [2022-07-13 13:58:24,026 INFO L226 Difference]: Without dead ends: 22 [2022-07-13 13:58:24,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:58:24,032 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 13:58:24,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 13:58:24,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-13 13:58:24,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-13 13:58:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 13:58:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-13 13:58:24,062 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-07-13 13:58:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:58:24,063 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-13 13:58:24,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-13 13:58:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-13 13:58:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 13:58:24,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:58:24,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:58:24,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 13:58:24,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 13:58:24,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:58:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:58:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-07-13 13:58:24,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:58:24,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376328728] [2022-07-13 13:58:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:58:24,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:58:24,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:58:24,291 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) [2022-07-13 13:58:24,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process