./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_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 cb0cfd9780eeedf9aa4140ed57adc138b8bb78ff47f7ccaaeace67369ab9d2da --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:33:41,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:33:41,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:33:41,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:33:41,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:33:41,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:33:41,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:33:41,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:33:41,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:33:41,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:33:41,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:33:41,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:33:41,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:33:41,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:33:41,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:33:41,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:33:41,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:33:41,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:33:41,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:33:41,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:33:41,916 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:33:41,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:33:41,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:33:41,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:33:41,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:33:41,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:33:41,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:33:41,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:33:41,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:33:41,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:33:41,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:33:41,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:33:41,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:33:41,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:33:41,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:33:41,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:33:41,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:33:41,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:33:41,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:33:41,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:33:41,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:33:41,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:33:41,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:33:41,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:33:41,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:33:41,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:33:41,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:33:41,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:33:41,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:33:41,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:33:41,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:33:41,963 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:33:41,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:33:41,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:33:41,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:33:41,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:33:41,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:33:41,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:41,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:33:41,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:33:41,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:33:41,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb0cfd9780eeedf9aa4140ed57adc138b8bb78ff47f7ccaaeace67369ab9d2da [2022-07-22 13:33:42,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:33:42,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:33:42,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:33:42,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:33:42,195 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:33:42,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2022-07-22 13:33:42,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec03ad0f/51a6cd9024194c8990b68cd8727e058f/FLAGe7ccd13b0 [2022-07-22 13:33:42,558 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:33:42,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2022-07-22 13:33:42,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec03ad0f/51a6cd9024194c8990b68cd8727e058f/FLAGe7ccd13b0 [2022-07-22 13:33:42,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec03ad0f/51a6cd9024194c8990b68cd8727e058f [2022-07-22 13:33:42,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:33:42,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:33:42,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:42,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:33:42,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:33:42,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:42" (1/1) ... [2022-07-22 13:33:42,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aae326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:42, skipping insertion in model container [2022-07-22 13:33:42,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:42" (1/1) ... [2022-07-22 13:33:42,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:33:43,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:33:43,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1722,1735] [2022-07-22 13:33:43,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:43,142 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:33:43,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1722,1735] [2022-07-22 13:33:43,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:43,167 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:33:43,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43 WrapperNode [2022-07-22 13:33:43,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:43,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:43,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:33:43,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:33:43,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,192 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-22 13:33:43,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:43,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:33:43,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:33:43,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:33:43,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:33:43,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:33:43,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:33:43,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:33:43,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (1/1) ... [2022-07-22 13:33:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:43,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:33:43,258 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) [2022-07-22 13:33:43,272 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 [2022-07-22 13:33:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:33:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:33:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:33:43,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:33:43,339 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:33:43,341 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:33:43,442 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:33:43,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:33:43,455 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:33:43,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:43 BoogieIcfgContainer [2022-07-22 13:33:43,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:33:43,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:33:43,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:33:43,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:33:43,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:33:42" (1/3) ... [2022-07-22 13:33:43,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a257f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:43, skipping insertion in model container [2022-07-22 13:33:43,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:43" (2/3) ... [2022-07-22 13:33:43,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a257f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:43, skipping insertion in model container [2022-07-22 13:33:43,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:43" (3/3) ... [2022-07-22 13:33:43,463 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2022-07-22 13:33:43,474 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:33:43,477 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:33:43,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:33:43,526 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@41f31dad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5e69dba7 [2022-07-22 13:33:43,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:33:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:43,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:43,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:43,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-22 13:33:43,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:33:43,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903472092] [2022-07-22 13:33:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:33:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:33:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:33:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 13:33:43,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903472092] [2022-07-22 13:33:43,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903472092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:33:43,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:33:43,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:33:43,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901087948] [2022-07-22 13:33:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:33:43,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:33:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 13:33:43,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:33:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:43,678 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:33:43,686 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-22 13:33:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:33:43,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 13:33:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:33:43,692 INFO L225 Difference]: With dead ends: 23 [2022-07-22 13:33:43,692 INFO L226 Difference]: Without dead ends: 9 [2022-07-22 13:33:43,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:43,698 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:33:43,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:33:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-22 13:33:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-22 13:33:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-22 13:33:43,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-22 13:33:43,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:33:43,727 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-22 13:33:43,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-22 13:33:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:43,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:43,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:43,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:33:43,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:43,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-22 13:33:43,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:33:43,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993431323] [2022-07-22 13:33:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:43,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:33:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:33:43,753 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:33:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:33:43,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:33:43,793 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:33:43,794 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:33:43,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 13:33:43,798 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:33:43,802 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:33:43,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:33:43 BoogieIcfgContainer [2022-07-22 13:33:43,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:33:43,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:33:43,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:33:43,832 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:33:43,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:43" (3/4) ... [2022-07-22 13:33:43,834 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:33:43,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:33:43,836 INFO L158 Benchmark]: Toolchain (without parser) took 850.28ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 87.0MB in the beginning and 130.9MB in the end (delta: -43.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:43,836 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:43,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.00ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 90.2MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:33:43,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 88.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:33:43,840 INFO L158 Benchmark]: Boogie Preprocessor took 23.51ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 87.8MB in the end (delta: 824.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:33:43,840 INFO L158 Benchmark]: RCFGBuilder took 239.81ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 79.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:33:43,842 INFO L158 Benchmark]: TraceAbstraction took 372.83ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 78.5MB in the beginning and 130.9MB in the end (delta: -52.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-07-22 13:33:43,842 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 153.1MB. Free memory is still 130.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:43,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.00ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 90.2MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 88.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.51ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 87.8MB in the end (delta: 824.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.81ms. Allocated memory is still 115.3MB. Free memory was 87.8MB in the beginning and 79.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 372.83ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 78.5MB in the beginning and 130.9MB in the end (delta: -52.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 153.1MB. Free memory is still 130.9MB. 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 42. 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) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-22 13:33:43,881 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_1_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 cb0cfd9780eeedf9aa4140ed57adc138b8bb78ff47f7ccaaeace67369ab9d2da --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:33:45,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:33:45,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:33:45,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:33:45,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:33:45,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:33:45,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:33:45,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:33:45,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:33:45,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:33:45,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:33:45,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:33:45,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:33:45,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:33:45,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:33:45,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:33:45,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:33:45,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:33:45,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:33:45,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:33:45,562 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:33:45,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:33:45,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:33:45,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:33:45,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:33:45,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:33:45,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:33:45,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:33:45,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:33:45,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:33:45,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:33:45,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:33:45,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:33:45,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:33:45,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:33:45,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:33:45,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:33:45,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:33:45,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:33:45,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:33:45,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:33:45,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:33:45,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:33:45,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:33:45,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:33:45,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:33:45,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:33:45,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:33:45,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:33:45,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:33:45,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:33:45,614 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:33:45,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:33:45,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:33:45,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:33:45,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:33:45,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:33:45,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:33:45,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:33:45,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:33:45,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:33:45,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:33:45,616 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:33:45,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:33:45,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:33:45,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:33:45,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:33:45,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:33:45,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:33:45,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:45,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:33:45,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:33:45,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:33:45,618 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:33:45,619 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:33:45,619 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:33:45,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:33:45,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:33:45,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:33:45,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb0cfd9780eeedf9aa4140ed57adc138b8bb78ff47f7ccaaeace67369ab9d2da [2022-07-22 13:33:45,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:33:45,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:33:45,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:33:45,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:33:45,913 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:33:45,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2022-07-22 13:33:45,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136fd221/b15abcb0d46c4ae8a02f744fa1cdc965/FLAG94d291355 [2022-07-22 13:33:46,282 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:33:46,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2022-07-22 13:33:46,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136fd221/b15abcb0d46c4ae8a02f744fa1cdc965/FLAG94d291355 [2022-07-22 13:33:46,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136fd221/b15abcb0d46c4ae8a02f744fa1cdc965 [2022-07-22 13:33:46,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:33:46,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:33:46,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:46,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:33:46,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:33:46,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55450fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46, skipping insertion in model container [2022-07-22 13:33:46,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:33:46,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:33:46,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1722,1735] [2022-07-22 13:33:46,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:46,827 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:33:46,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1722,1735] [2022-07-22 13:33:46,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:46,871 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:33:46,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46 WrapperNode [2022-07-22 13:33:46,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:46,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:46,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:33:46,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:33:46,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,896 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-22 13:33:46,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:46,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:33:46,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:33:46,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:33:46,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:33:46,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:33:46,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:33:46,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:33:46,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (1/1) ... [2022-07-22 13:33:46,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:46,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:33:46,935 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) [2022-07-22 13:33:46,940 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 [2022-07-22 13:33:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:33:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:33:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:33:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:33:47,000 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:33:47,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:33:53,358 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:33:53,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:33:53,362 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:33:53,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:53 BoogieIcfgContainer [2022-07-22 13:33:53,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:33:53,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:33:53,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:33:53,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:33:53,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:33:46" (1/3) ... [2022-07-22 13:33:53,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e04950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:53, skipping insertion in model container [2022-07-22 13:33:53,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:46" (2/3) ... [2022-07-22 13:33:53,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e04950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:53, skipping insertion in model container [2022-07-22 13:33:53,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:53" (3/3) ... [2022-07-22 13:33:53,368 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2022-07-22 13:33:53,377 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:33:53,377 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:33:53,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:33:53,409 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@17c568bb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@524b10ef [2022-07-22 13:33:53,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:33:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:53,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:53,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:53,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-22 13:33:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:33:53,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569914582] [2022-07-22 13:33:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:53,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:33:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:33:53,439 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) [2022-07-22 13:33:53,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 13:33:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:33:54,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 13:33:54,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:33:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:33:54,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:33:54,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:33:54,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569914582] [2022-07-22 13:33:54,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569914582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:33:54,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:33:54,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:33:54,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831713797] [2022-07-22 13:33:54,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:33:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:33:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:33:54,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:33:54,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:54,316 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:54,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:33:54,323 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-22 13:33:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:33:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 13:33:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:33:54,329 INFO L225 Difference]: With dead ends: 23 [2022-07-22 13:33:54,329 INFO L226 Difference]: Without dead ends: 9 [2022-07-22 13:33:54,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:54,332 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:33:54,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:33:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-22 13:33:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-22 13:33:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-22 13:33:54,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-22 13:33:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:33:54,350 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-22 13:33:54,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:33:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-22 13:33:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:54,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:54,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:54,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 13:33:54,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:33:54,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:54,573 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-22 13:33:54,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:33:54,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632230152] [2022-07-22 13:33:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:54,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:33:54,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:33:54,575 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) [2022-07-22 13:33:54,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 13:33:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:33:58,582 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:34:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:34:02,709 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-22 13:34:02,710 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:34:02,711 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:34:02,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 13:34:02,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:34:02,915 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:34:02,918 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:34:02,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:34:02 BoogieIcfgContainer [2022-07-22 13:34:02,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:34:02,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:34:02,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:34:02,935 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:34:02,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:53" (3/4) ... [2022-07-22 13:34:02,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 13:34:02,958 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 13:34:02,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:34:02,959 INFO L158 Benchmark]: Toolchain (without parser) took 16260.56ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.5MB in the beginning and 34.7MB in the end (delta: -8.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-07-22 13:34:02,959 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 31.7MB in the beginning and 31.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:02,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.03ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.3MB in the beginning and 53.3MB in the end (delta: -27.0MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-07-22 13:34:02,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.38ms. Allocated memory is still 69.2MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:02,961 INFO L158 Benchmark]: Boogie Preprocessor took 15.22ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 50.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:02,961 INFO L158 Benchmark]: RCFGBuilder took 6450.20ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 41.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:34:02,961 INFO L158 Benchmark]: TraceAbstraction took 9570.38ms. Allocated memory is still 69.2MB. Free memory was 41.1MB in the beginning and 36.4MB in the end (delta: 4.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-22 13:34:02,962 INFO L158 Benchmark]: Witness Printer took 23.58ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:34:02,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 31.7MB in the beginning and 31.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.03ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.3MB in the beginning and 53.3MB in the end (delta: -27.0MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.38ms. Allocated memory is still 69.2MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.22ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 50.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6450.20ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 41.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9570.38ms. Allocated memory is still 69.2MB. Free memory was 41.1MB in the beginning and 36.4MB in the end (delta: 4.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 23.58ms. Allocated memory is still 69.2MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.8MB). 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) [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)=-1.0, \result=-0.841865062713623, x=-1.0] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.0, \result=0.5430555939674377, x=-1.0] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-1.0, x=0.5502372980117798] [L51] reach_error() VAL [IN=-1.0, x=0.5502372980117798] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-22 13:34:03,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE