./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_6.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 ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:55:15,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:55:15,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:55:15,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:55:15,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:55:15,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:55:15,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:55:15,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:55:15,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:55:15,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:55:15,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:55:15,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:55:15,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:55:15,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:55:15,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:55:15,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:55:15,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:55:15,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:55:15,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:55:15,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:55:15,310 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:55:15,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:55:15,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:55:15,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:55:15,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:55:15,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:55:15,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:55:15,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:55:15,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:55:15,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:55:15,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:55:15,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:55:15,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:55:15,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:55:15,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:55:15,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:55:15,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:55:15,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:55:15,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:55:15,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:55:15,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:55:15,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:55:15,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 13:55:15,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:55:15,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:55:15,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:55:15,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:55:15,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:55:15,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:55:15,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:55:15,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:55:15,349 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:55:15,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:55:15,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:55:15,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 13:55:15,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:55:15,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:55:15,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:55:15,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:55:15,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:55:15,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:55:15,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:55:15,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:55:15,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:55:15,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:55:15,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-13 13:55:15,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:55:15,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:55:15,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:55:15,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:55:15,573 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:55:15,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-13 13:55:15,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e3bd61d7/149c214417804374b64dd05ea64dfe5a/FLAG422e477f8 [2022-07-13 13:55:15,919 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:55:15,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-13 13:55:15,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e3bd61d7/149c214417804374b64dd05ea64dfe5a/FLAG422e477f8 [2022-07-13 13:55:16,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e3bd61d7/149c214417804374b64dd05ea64dfe5a [2022-07-13 13:55:16,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:55:16,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:55:16,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:55:16,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:55:16,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:55:16,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655ca87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16, skipping insertion in model container [2022-07-13 13:55:16,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:55:16,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:55:16,534 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_6.i[1722,1735] [2022-07-13 13:55:16,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:55:16,541 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:55:16,553 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_6.i[1722,1735] [2022-07-13 13:55:16,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:55:16,563 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:55:16,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16 WrapperNode [2022-07-13 13:55:16,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:55:16,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:55:16,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:55:16,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:55:16,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,590 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-13 13:55:16,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:55:16,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:55:16,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:55:16,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:55:16,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:55:16,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:55:16,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:55:16,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:55:16,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (1/1) ... [2022-07-13 13:55:16,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:55:16,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:55:16,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 13:55:16,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 13:55:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:55:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 13:55:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:55:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:55:16,720 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:55:16,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:55:16,831 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:55:16,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:55:16,835 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:55:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:16 BoogieIcfgContainer [2022-07-13 13:55:16,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:55:16,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:55:16,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:55:16,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:55:16,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:55:16" (1/3) ... [2022-07-13 13:55:16,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c4259e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:55:16, skipping insertion in model container [2022-07-13 13:55:16,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:16" (2/3) ... [2022-07-13 13:55:16,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c4259e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:55:16, skipping insertion in model container [2022-07-13 13:55:16,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:16" (3/3) ... [2022-07-13 13:55:16,845 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-13 13:55:16,854 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:55:16,867 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:55:16,928 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:55:16,933 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@63306ea4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2fffff74 [2022-07-13 13:55:16,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:55:16,936 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) [2022-07-13 13:55:16,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:55:16,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:55:16,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:55:16,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:55:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:55:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:55:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:55:16,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002971098] [2022-07-13 13:55:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:55:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:55:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:55:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:55:17,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:55:17,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002971098] [2022-07-13 13:55:17,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002971098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:55:17,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:55:17,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:55:17,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303168890] [2022-07-13 13:55:17,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:55:17,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:55:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:55:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:55:17,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:55:17,093 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) [2022-07-13 13:55:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:55:17,101 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:55:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:55:17,102 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 [2022-07-13 13:55:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:55:17,107 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:55:17,107 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:55:17,109 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 [2022-07-13 13:55:17,113 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 [2022-07-13 13:55:17,114 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] [2022-07-13 13:55:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:55:17,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:55:17,132 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) [2022-07-13 13:55:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:55:17,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:55:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:55:17,133 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:55:17,134 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) [2022-07-13 13:55:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:55:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:55:17,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:55:17,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:55:17,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 13:55:17,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:55:17,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:55:17,136 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:55:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:55:17,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450374485] [2022-07-13 13:55:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:55:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:55:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:55:17,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:55:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:55:17,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 13:55:17,167 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:55:17,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:55:17,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 13:55:17,172 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:55:17,175 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:55:17,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:55:17 BoogieIcfgContainer [2022-07-13 13:55:17,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:55:17,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:55:17,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:55:17,194 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:55:17,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:16" (3/4) ... [2022-07-13 13:55:17,196 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 13:55:17,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:55:17,197 INFO L158 Benchmark]: Toolchain (without parser) took 841.99ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 71.9MB in the end (delta: 26.5MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-07-13 13:55:17,197 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:17,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.11ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 106.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:55:17,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.50ms. Allocated memory is still 130.0MB. Free memory was 106.1MB in the beginning and 104.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:55:17,198 INFO L158 Benchmark]: Boogie Preprocessor took 30.80ms. Allocated memory is still 130.0MB. Free memory was 104.8MB in the beginning and 103.9MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:17,199 INFO L158 Benchmark]: RCFGBuilder took 213.73ms. Allocated memory is still 130.0MB. Free memory was 103.9MB in the beginning and 95.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 13:55:17,199 INFO L158 Benchmark]: TraceAbstraction took 355.39ms. Allocated memory is still 130.0MB. Free memory was 94.5MB in the beginning and 71.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-13 13:55:17,199 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 130.0MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:17,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.11ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 106.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.50ms. Allocated memory is still 130.0MB. Free memory was 106.1MB in the beginning and 104.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.80ms. Allocated memory is still 130.0MB. Free memory was 104.8MB in the beginning and 103.9MB in the end (delta: 948.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.73ms. Allocated memory is still 130.0MB. Free memory was 103.9MB in the beginning and 95.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 355.39ms. Allocated memory is still 130.0MB. Free memory was 94.5MB in the beginning and 71.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 130.0MB. Free memory is still 71.9MB. 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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 [2022-07-13 13:55:17,232 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_6.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 ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:55:19,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:55:19,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:55:19,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:55:19,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:55:19,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:55:19,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:55:19,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:55:19,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:55:19,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:55:19,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:55:19,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:55:19,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:55:19,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:55:19,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:55:19,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:55:19,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:55:19,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:55:19,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:55:19,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:55:19,232 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:55:19,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:55:19,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:55:19,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:55:19,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:55:19,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:55:19,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:55:19,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:55:19,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:55:19,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:55:19,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:55:19,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:55:19,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:55:19,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:55:19,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:55:19,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:55:19,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:55:19,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:55:19,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:55:19,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:55:19,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:55:19,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:55:19,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 13:55:19,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:55:19,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:55:19,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:55:19,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:55:19,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:55:19,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:55:19,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:55:19,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:55:19,288 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:55:19,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:55:19,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:55:19,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:55:19,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:55:19,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:55:19,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:55:19,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:55:19,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:55:19,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:55:19,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:55:19,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:55:19,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:55:19,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:55:19,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:55:19,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:55:19,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 13:55:19,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-13 13:55:19,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:55:19,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:55:19,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:55:19,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:55:19,682 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:55:19,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-13 13:55:19,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c853a32/84dc5546c35449daacd55267d02e32d9/FLAG80a5c50c4 [2022-07-13 13:55:20,117 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:55:20,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-13 13:55:20,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c853a32/84dc5546c35449daacd55267d02e32d9/FLAG80a5c50c4 [2022-07-13 13:55:20,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c853a32/84dc5546c35449daacd55267d02e32d9 [2022-07-13 13:55:20,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:55:20,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:55:20,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:55:20,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:55:20,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:55:20,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eff957b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20, skipping insertion in model container [2022-07-13 13:55:20,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:55:20,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:55:20,291 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_6.i[1722,1735] [2022-07-13 13:55:20,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:55:20,302 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:55:20,357 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_6.i[1722,1735] [2022-07-13 13:55:20,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:55:20,370 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:55:20,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20 WrapperNode [2022-07-13 13:55:20,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:55:20,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:55:20,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:55:20,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:55:20,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,399 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-13 13:55:20,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:55:20,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:55:20,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:55:20,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:55:20,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:55:20,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:55:20,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:55:20,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:55:20,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (1/1) ... [2022-07-13 13:55:20,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:55:20,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:55:20,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 13:55:20,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 13:55:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:55:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 13:55:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:55:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:55:20,539 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:55:20,541 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:55:25,703 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:55:25,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:55:25,707 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:55:25,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:25 BoogieIcfgContainer [2022-07-13 13:55:25,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:55:25,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:55:25,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:55:25,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:55:25,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:55:20" (1/3) ... [2022-07-13 13:55:25,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682788fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:55:25, skipping insertion in model container [2022-07-13 13:55:25,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:55:20" (2/3) ... [2022-07-13 13:55:25,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682788fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:55:25, skipping insertion in model container [2022-07-13 13:55:25,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:25" (3/3) ... [2022-07-13 13:55:25,713 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-13 13:55:25,744 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:55:25,745 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:55:25,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:55:25,782 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@42800961, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f981105 [2022-07-13 13:55:25,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:55:25,785 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) [2022-07-13 13:55:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:55:25,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:55:25,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:55:25,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:55:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:55:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:55:25,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:55:25,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884241293] [2022-07-13 13:55:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:55:25,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:55:25,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:55:25,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 13:55:25,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 13:55:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:55:26,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 13:55:26,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:55:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:55:26,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:55:26,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 13:55:26,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884241293] [2022-07-13 13:55:26,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884241293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:55:26,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:55:26,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:55:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450267967] [2022-07-13 13:55:26,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:55:26,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:55:26,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 13:55:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:55:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:55:26,752 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) [2022-07-13 13:55:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:55:26,761 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:55:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:55:26,762 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 [2022-07-13 13:55:26,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:55:26,767 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:55:26,767 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:55:26,769 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 [2022-07-13 13:55:26,772 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 [2022-07-13 13:55:26,774 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] [2022-07-13 13:55:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:55:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:55:26,798 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) [2022-07-13 13:55:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:55:26,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:55:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:55:26,800 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:55:26,800 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) [2022-07-13 13:55:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:55:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:55:26,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:55:26,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:55:26,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 13:55:27,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 13:55:27,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:55:27,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:55:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:55:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:55:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336387494] [2022-07-13 13:55:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:55:27,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:55:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:55:27,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 13:55:27,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 13:55:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:55:37,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:56:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:56:04,076 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 13:56:04,076 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:56:04,077 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:56:04,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 13:56:04,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 13:56:04,281 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:56:04,283 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:56:04,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:56:04 BoogieIcfgContainer [2022-07-13 13:56:04,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:56:04,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:56:04,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:56:04,303 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:56:04,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:55:25" (3/4) ... [2022-07-13 13:56:04,304 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 13:56:04,347 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 13:56:04,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:56:04,348 INFO L158 Benchmark]: Toolchain (without parser) took 44210.41ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.6MB in the beginning and 34.1MB in the end (delta: -9.5MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,349 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:56:04,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.49ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.4MB in the beginning and 42.9MB in the end (delta: -18.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.57ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,352 INFO L158 Benchmark]: Boogie Preprocessor took 19.02ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 40.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,353 INFO L158 Benchmark]: RCFGBuilder took 5288.52ms. Allocated memory is still 60.8MB. Free memory was 40.0MB in the beginning and 31.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,353 INFO L158 Benchmark]: TraceAbstraction took 38592.67ms. Allocated memory is still 60.8MB. Free memory was 30.7MB in the beginning and 36.2MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:56:04,353 INFO L158 Benchmark]: Witness Printer took 45.36ms. Allocated memory is still 60.8MB. Free memory was 36.0MB in the beginning and 34.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:56:04,356 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 50.3MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.49ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.4MB in the beginning and 42.9MB in the end (delta: -18.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.57ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.02ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 40.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5288.52ms. Allocated memory is still 60.8MB. Free memory was 40.0MB in the beginning and 31.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 38592.67ms. Allocated memory is still 60.8MB. Free memory was 30.7MB in the beginning and 36.2MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.36ms. Allocated memory is still 60.8MB. Free memory was 36.0MB in the beginning and 34.1MB 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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)=-1.1990375518798828, \result=-0.9330898523330688, x=-1.1990375518798828] [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)=-1.1990375518798828, \result=0.37140488624572754, x=-1.1990375518798828] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1990375518798828, x=1.3132877349853516] [L51] reach_error() VAL [IN=-1.1990375518798828, x=1.3132877349853516] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.5s, 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, 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, 10.9s 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! [2022-07-13 13:56:04,489 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