./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_4.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 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 00:56:39,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 00:56:39,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 00:56:39,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 00:56:39,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 00:56:39,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 00:56:39,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 00:56:39,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 00:56:39,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 00:56:39,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 00:56:39,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 00:56:39,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 00:56:39,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 00:56:39,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 00:56:39,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 00:56:39,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 00:56:39,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 00:56:39,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 00:56:39,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 00:56:39,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 00:56:39,983 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 00:56:39,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 00:56:39,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 00:56:39,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 00:56:39,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 00:56:39,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 00:56:39,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 00:56:39,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 00:56:39,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 00:56:39,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 00:56:39,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 00:56:39,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 00:56:39,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 00:56:39,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 00:56:39,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 00:56:39,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 00:56:39,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 00:56:39,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 00:56:39,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 00:56:39,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 00:56:39,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 00:56:40,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 00:56:40,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 00:56:40,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 00:56:40,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 00:56:40,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 00:56:40,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 00:56:40,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 00:56:40,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 00:56:40,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 00:56:40,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 00:56:40,031 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 00:56:40,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 00:56:40,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 00:56:40,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 00:56:40,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 00:56:40,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 00:56:40,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 00:56:40,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 00:56:40,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 00:56:40,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 00:56:40,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:56:40,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 00:56:40,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 00:56:40,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 00:56:40,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 00:56:40,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 00:56:40,035 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 00:56:40,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 00:56:40,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 00:56:40,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 [2022-07-21 00:56:40,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 00:56:40,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 00:56:40,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 00:56:40,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 00:56:40,309 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 00:56:40,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-07-21 00:56:40,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6eb989/d0760e8792e14345bf28c9d29427e029/FLAG334f0b1c2 [2022-07-21 00:56:40,656 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 00:56:40,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-07-21 00:56:40,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6eb989/d0760e8792e14345bf28c9d29427e029/FLAG334f0b1c2 [2022-07-21 00:56:41,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6eb989/d0760e8792e14345bf28c9d29427e029 [2022-07-21 00:56:41,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 00:56:41,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 00:56:41,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 00:56:41,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 00:56:41,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 00:56:41,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46531675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41, skipping insertion in model container [2022-07-21 00:56:41,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 00:56:41,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 00:56:41,218 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_4.i[1722,1735] [2022-07-21 00:56:41,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:56:41,224 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 00:56:41,235 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_4.i[1722,1735] [2022-07-21 00:56:41,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:56:41,243 INFO L208 MainTranslator]: Completed translation [2022-07-21 00:56:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41 WrapperNode [2022-07-21 00:56:41,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 00:56:41,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 00:56:41,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 00:56:41,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 00:56:41,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,285 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-21 00:56:41,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 00:56:41,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 00:56:41,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 00:56:41,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 00:56:41,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 00:56:41,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 00:56:41,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 00:56:41,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 00:56:41,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (1/1) ... [2022-07-21 00:56:41,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:56:41,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:56:41,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 00:56:41,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 00:56:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 00:56:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 00:56:41,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 00:56:41,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 00:56:41,400 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 00:56:41,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 00:56:41,517 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 00:56:41,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 00:56:41,527 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 00:56:41,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:41 BoogieIcfgContainer [2022-07-21 00:56:41,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 00:56:41,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 00:56:41,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 00:56:41,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 00:56:41,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:56:41" (1/3) ... [2022-07-21 00:56:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54288a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:41, skipping insertion in model container [2022-07-21 00:56:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:41" (2/3) ... [2022-07-21 00:56:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54288a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:41, skipping insertion in model container [2022-07-21 00:56:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:41" (3/3) ... [2022-07-21 00:56:41,536 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2022-07-21 00:56:41,546 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 00:56:41,546 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 00:56:41,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 00:56:41,598 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@25b895c2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c0a08c5 [2022-07-21 00:56:41,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 00:56:41,602 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) [2022-07-21 00:56:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 00:56:41,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:56:41,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:56:41,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:56:41,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:56:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-21 00:56:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:56:41,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152412267] [2022-07-21 00:56:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:56:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:56:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:56:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 00:56:41,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 00:56:41,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152412267] [2022-07-21 00:56:41,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152412267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:56:41,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:56:41,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 00:56:41,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607902719] [2022-07-21 00:56:41,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:56:41,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 00:56:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 00:56:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 00:56:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 00:56:41,762 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) [2022-07-21 00:56:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:56:41,771 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-21 00:56:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 00:56:41,773 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 [2022-07-21 00:56:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:56:41,778 INFO L225 Difference]: With dead ends: 23 [2022-07-21 00:56:41,778 INFO L226 Difference]: Without dead ends: 9 [2022-07-21 00:56:41,780 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 [2022-07-21 00:56:41,783 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 [2022-07-21 00:56:41,784 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] [2022-07-21 00:56:41,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-21 00:56:41,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-21 00:56:41,811 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) [2022-07-21 00:56:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-21 00:56:41,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-21 00:56:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:56:41,813 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-21 00:56:41,814 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) [2022-07-21 00:56:41,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-21 00:56:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 00:56:41,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:56:41,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:56:41,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 00:56:41,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:56:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:56:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-21 00:56:41,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 00:56:41,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156216561] [2022-07-21 00:56:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:56:41,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 00:56:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:56:41,838 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 00:56:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:56:41,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 00:56:41,867 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 00:56:41,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 00:56:41,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 00:56:41,872 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 00:56:41,874 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 00:56:41,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:56:41 BoogieIcfgContainer [2022-07-21 00:56:41,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 00:56:41,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 00:56:41,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 00:56:41,901 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 00:56:41,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:41" (3/4) ... [2022-07-21 00:56:41,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 00:56:41,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 00:56:41,905 INFO L158 Benchmark]: Toolchain (without parser) took 804.09ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.2MB in the beginning and 50.9MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:56:41,906 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:56:41,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.26ms. Allocated memory is still 54.5MB. Free memory was 31.9MB in the beginning and 35.9MB in the end (delta: -3.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-21 00:56:41,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.72ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 35.7MB in the beginning and 52.7MB in the end (delta: -17.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:56:41,909 INFO L158 Benchmark]: Boogie Preprocessor took 11.95ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:56:41,911 INFO L158 Benchmark]: RCFGBuilder took 230.14ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 42.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 00:56:41,911 INFO L158 Benchmark]: TraceAbstraction took 370.13ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 51.2MB in the end (delta: -9.0MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-07-21 00:56:41,911 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 50.9MB in the end (delta: 310.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:56:41,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.26ms. Allocated memory is still 54.5MB. Free memory was 31.9MB in the beginning and 35.9MB in the end (delta: -3.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.72ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 35.7MB in the beginning and 52.7MB in the end (delta: -17.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.95ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.14ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 42.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 370.13ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 51.2MB in the end (delta: -9.0MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 50.9MB in the end (delta: 310.8kB). 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 > -0.8f && IN < 0.8f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [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: 0.1s, 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 [2022-07-21 00:56:41,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_4.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 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 00:56:43,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 00:56:43,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 00:56:43,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 00:56:43,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 00:56:43,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 00:56:43,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 00:56:43,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 00:56:43,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 00:56:43,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 00:56:43,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 00:56:43,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 00:56:43,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 00:56:43,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 00:56:43,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 00:56:43,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 00:56:43,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 00:56:43,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 00:56:43,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 00:56:43,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 00:56:43,636 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 00:56:43,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 00:56:43,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 00:56:43,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 00:56:43,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 00:56:43,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 00:56:43,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 00:56:43,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 00:56:43,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 00:56:43,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 00:56:43,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 00:56:43,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 00:56:43,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 00:56:43,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 00:56:43,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 00:56:43,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 00:56:43,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 00:56:43,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 00:56:43,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 00:56:43,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 00:56:43,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 00:56:43,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 00:56:43,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 00:56:43,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 00:56:43,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 00:56:43,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 00:56:43,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 00:56:43,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 00:56:43,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 00:56:43,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 00:56:43,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 00:56:43,691 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 00:56:43,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 00:56:43,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 00:56:43,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 00:56:43,693 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 00:56:43,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 00:56:43,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 00:56:43,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 00:56:43,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 00:56:43,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 00:56:43,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 00:56:43,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 00:56:43,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:56:43,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 00:56:43,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 00:56:43,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 00:56:43,695 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 00:56:43,696 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 00:56:43,696 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 00:56:43,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 00:56:43,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 00:56:43,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 00:56:43,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15357de746283fe60d846c8349b4c6ce8cd7385cd186a6f3b39858042f1d66f7 [2022-07-21 00:56:43,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 00:56:43,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 00:56:43,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 00:56:43,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 00:56:43,941 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 00:56:43,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-07-21 00:56:43,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49d8e261/ef1f2fe4f6ff4062ab97f1c2f1f01ff7/FLAGfd9deed98 [2022-07-21 00:56:44,333 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 00:56:44,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2022-07-21 00:56:44,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49d8e261/ef1f2fe4f6ff4062ab97f1c2f1f01ff7/FLAGfd9deed98 [2022-07-21 00:56:44,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49d8e261/ef1f2fe4f6ff4062ab97f1c2f1f01ff7 [2022-07-21 00:56:44,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 00:56:44,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 00:56:44,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 00:56:44,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 00:56:44,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 00:56:44,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:44" (1/1) ... [2022-07-21 00:56:44,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0bd318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:44, skipping insertion in model container [2022-07-21 00:56:44,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:44" (1/1) ... [2022-07-21 00:56:44,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 00:56:44,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 00:56:44,922 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_4.i[1722,1735] [2022-07-21 00:56:44,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:56:44,934 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 00:56:44,987 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_4.i[1722,1735] [2022-07-21 00:56:44,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 00:56:45,000 INFO L208 MainTranslator]: Completed translation [2022-07-21 00:56:45,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45 WrapperNode [2022-07-21 00:56:45,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 00:56:45,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 00:56:45,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 00:56:45,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 00:56:45,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,036 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-21 00:56:45,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 00:56:45,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 00:56:45,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 00:56:45,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 00:56:45,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 00:56:45,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 00:56:45,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 00:56:45,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 00:56:45,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (1/1) ... [2022-07-21 00:56:45,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 00:56:45,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 00:56:45,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 00:56:45,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 00:56:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 00:56:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 00:56:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 00:56:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 00:56:45,180 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 00:56:45,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 00:56:51,950 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 00:56:51,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 00:56:51,955 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 00:56:51,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:51 BoogieIcfgContainer [2022-07-21 00:56:51,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 00:56:51,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 00:56:51,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 00:56:51,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 00:56:51,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:56:44" (1/3) ... [2022-07-21 00:56:51,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c87a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:51, skipping insertion in model container [2022-07-21 00:56:51,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:45" (2/3) ... [2022-07-21 00:56:51,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c87a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:51, skipping insertion in model container [2022-07-21 00:56:51,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:51" (3/3) ... [2022-07-21 00:56:51,961 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2022-07-21 00:56:51,970 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 00:56:51,971 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 00:56:52,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 00:56:52,012 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@48d55311, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22dd3990 [2022-07-21 00:56:52,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 00:56:52,015 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) [2022-07-21 00:56:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 00:56:52,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:56:52,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:56:52,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:56:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:56:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-21 00:56:52,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 00:56:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445964765] [2022-07-21 00:56:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:56:52,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 00:56:52,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 00:56:52,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 00:56:52,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 00:56:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 00:56:52,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 00:56:52,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 00:56:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 00:56:53,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 00:56:53,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 00:56:53,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445964765] [2022-07-21 00:56:53,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445964765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 00:56:53,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 00:56:53,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 00:56:53,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468566097] [2022-07-21 00:56:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 00:56:53,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 00:56:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 00:56:53,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 00:56:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 00:56:53,049 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) [2022-07-21 00:56:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 00:56:53,057 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-21 00:56:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 00:56:53,059 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 [2022-07-21 00:56:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 00:56:53,064 INFO L225 Difference]: With dead ends: 23 [2022-07-21 00:56:53,064 INFO L226 Difference]: Without dead ends: 9 [2022-07-21 00:56:53,066 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 [2022-07-21 00:56:53,068 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 [2022-07-21 00:56:53,069 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] [2022-07-21 00:56:53,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-21 00:56:53,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-21 00:56:53,085 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) [2022-07-21 00:56:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-21 00:56:53,086 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-21 00:56:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 00:56:53,087 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-21 00:56:53,087 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) [2022-07-21 00:56:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-21 00:56:53,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 00:56:53,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 00:56:53,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 00:56:53,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 00:56:53,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 00:56:53,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 00:56:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 00:56:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-21 00:56:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 00:56:53,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656730181] [2022-07-21 00:56:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 00:56:53,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 00:56:53,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 00:56:53,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 00:56:53,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 00:57:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:57:25,599 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 00:57:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 00:57:33,132 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 00:57:33,133 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 00:57:33,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 00:57:33,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 00:57:33,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 00:57:33,338 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 00:57:33,341 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 00:57:33,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:57:33 BoogieIcfgContainer [2022-07-21 00:57:33,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 00:57:33,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 00:57:33,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 00:57:33,359 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 00:57:33,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:51" (3/4) ... [2022-07-21 00:57:33,361 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 00:57:33,384 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 00:57:33,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 00:57:33,385 INFO L158 Benchmark]: Toolchain (without parser) took 48620.14ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 43.9MB in the end (delta: -13.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:33,385 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 39.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:33,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.43ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 48.7MB in the end (delta: -18.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-21 00:57:33,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.69ms. Allocated memory is still 65.0MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 00:57:33,386 INFO L158 Benchmark]: Boogie Preprocessor took 35.40ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:57:33,386 INFO L158 Benchmark]: RCFGBuilder took 6882.46ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 37.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 00:57:33,387 INFO L158 Benchmark]: TraceAbstraction took 41400.78ms. Allocated memory is still 65.0MB. Free memory was 36.6MB in the beginning and 45.7MB in the end (delta: -9.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-21 00:57:33,387 INFO L158 Benchmark]: Witness Printer took 25.50ms. Allocated memory is still 65.0MB. Free memory was 45.7MB in the beginning and 43.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 00:57:33,389 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 52.4MB. Free memory was 34.5MB in the beginning and 34.5MB in the end (delta: 39.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.43ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 48.7MB in the end (delta: -18.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.69ms. Allocated memory is still 65.0MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.40ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6882.46ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 37.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 41400.78ms. Allocated memory is still 65.0MB. Free memory was 36.6MB in the beginning and 45.7MB in the end (delta: -9.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 25.50ms. Allocated memory is still 65.0MB. Free memory was 45.7MB in the beginning and 43.9MB 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 > -0.8f && IN < 0.8f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [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)=-0.6833524107933044, \result=-0.631423830986023, x=-0.6833524107933044] [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)=-0.6833524107933044, \result=0.7757421135902405, x=-0.6833524107933044] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.6833524107933044, x=0.13060861825942993] [L51] reach_error() VAL [IN=-0.6833524107933044, x=0.13060861825942993] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.3s, 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, 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, 33.1s 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! [2022-07-21 00:57:33,533 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