./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 6c24879c 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-?-6c24879 [2022-07-12 02:11:50,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:50,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:50,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:50,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:50,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:50,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:50,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:50,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:50,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:50,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:50,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:50,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:50,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:50,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:50,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:50,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:50,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:50,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:50,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:50,760 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:50,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:50,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:50,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:50,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:50,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:50,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:50,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:50,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:50,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:50,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:50,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:50,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:50,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:50,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:50,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:50,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:50,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:50,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:50,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:50,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:50,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:50,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:11:50,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:50,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:50,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:50,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:50,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:50,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:50,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:50,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:50,804 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:50,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:50,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:50,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:11:50,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:50,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:50,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:50,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:50,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:50,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:50,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:50,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:50,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:50,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:50,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:50,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:50,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:50,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:50,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:50,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-12 02:11:51,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:51,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:51,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:51,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:51,027 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:51,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-12 02:11:51,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4909018/1f6159365f6e4b9394d779a95f562c2e/FLAGb5e2da256 [2022-07-12 02:11:51,451 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:51,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-12 02:11:51,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4909018/1f6159365f6e4b9394d779a95f562c2e/FLAGb5e2da256 [2022-07-12 02:11:51,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4909018/1f6159365f6e4b9394d779a95f562c2e [2022-07-12 02:11:51,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:51,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:51,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:51,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:51,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:51,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19482853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51, skipping insertion in model container [2022-07-12 02:11:51,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:51,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:51,611 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] [2022-07-12 02:11:51,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:51,621 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:51,641 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] [2022-07-12 02:11:51,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:51,655 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:51,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51 WrapperNode [2022-07-12 02:11:51,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:51,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:51,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:51,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:51,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,685 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-12 02:11:51,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:51,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:51,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:51,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:51,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:51,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:51,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:51,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:51,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (1/1) ... [2022-07-12 02:11:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:51,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:51,741 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) [2022-07-12 02:11:51,744 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 [2022-07-12 02:11:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:11:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:51,827 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:51,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:11:51,896 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:11:51,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:11:51,899 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:11:51,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:51 BoogieIcfgContainer [2022-07-12 02:11:51,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:11:51,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:11:51,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:11:51,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:11:51,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:51" (1/3) ... [2022-07-12 02:11:51,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc63285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:51, skipping insertion in model container [2022-07-12 02:11:51,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:51" (2/3) ... [2022-07-12 02:11:51,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc63285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:51, skipping insertion in model container [2022-07-12 02:11:51,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:51" (3/3) ... [2022-07-12 02:11:51,905 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-12 02:11:51,914 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:11:51,915 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:11:51,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:11:51,946 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@46f203af, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a887b43 [2022-07-12 02:11:51,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:11:51,949 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) [2022-07-12 02:11:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:51,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:51,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:51,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:11:51,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:51,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312165536] [2022-07-12 02:11:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:51,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:11:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:11:52,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:11:52,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312165536] [2022-07-12 02:11:52,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312165536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:11:52,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:11:52,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:11:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732939380] [2022-07-12 02:11:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:11:52,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:11:52,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:11:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:11:52,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:11:52,105 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) [2022-07-12 02:11:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:11:52,114 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:11:52,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:11:52,115 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 [2022-07-12 02:11:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:11:52,120 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:11:52,120 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:11:52,122 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 [2022-07-12 02:11:52,125 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 [2022-07-12 02:11:52,126 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] [2022-07-12 02:11:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:11:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:11:52,147 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) [2022-07-12 02:11:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:11:52,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:11:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:11:52,149 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:11:52,149 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) [2022-07-12 02:11:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:11:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:52,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:52,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:52,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:11:52,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:11:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:52,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981533433] [2022-07-12 02:11:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:52,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:11:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:52,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:11:52,210 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:11:52,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:11:52,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:11:52,220 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:11:52,224 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:11:52,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:11:52 BoogieIcfgContainer [2022-07-12 02:11:52,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:11:52,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:11:52,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:11:52,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:11:52,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:51" (3/4) ... [2022-07-12 02:11:52,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:11:52,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:11:52,251 INFO L158 Benchmark]: Toolchain (without parser) took 779.04ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 82.2MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:52,252 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 76.3MB in the beginning and 76.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:52,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.81ms. Allocated memory is still 96.5MB. Free memory was 59.9MB in the beginning and 72.4MB in the end (delta: -12.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-12 02:11:52,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.41ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:52,255 INFO L158 Benchmark]: Boogie Preprocessor took 12.09ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 69.8MB in the end (delta: 967.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:52,257 INFO L158 Benchmark]: RCFGBuilder took 202.37ms. Allocated memory is still 96.5MB. Free memory was 69.8MB in the beginning and 61.1MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:11:52,257 INFO L158 Benchmark]: TraceAbstraction took 343.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 82.2MB in the end (delta: -21.5MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2022-07-12 02:11:52,257 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 117.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:52,261 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 96.5MB. Free memory was 76.3MB in the beginning and 76.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.81ms. Allocated memory is still 96.5MB. Free memory was 59.9MB in the beginning and 72.4MB in the end (delta: -12.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.41ms. Allocated memory is still 96.5MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.09ms. Allocated memory is still 96.5MB. Free memory was 70.8MB in the beginning and 69.8MB in the end (delta: 967.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 202.37ms. Allocated memory is still 96.5MB. Free memory was 69.8MB in the beginning and 61.1MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 343.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 82.2MB in the end (delta: -21.5MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 117.4MB. Free memory is still 82.2MB. 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: 0.1s, 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 [2022-07-12 02:11:52,309 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-?-6c24879 [2022-07-12 02:11:54,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:54,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:54,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:54,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:54,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:54,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:54,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:54,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:54,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:54,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:54,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:54,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:54,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:54,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:54,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:54,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:54,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:54,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:54,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:54,343 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:54,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:54,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:54,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:54,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:54,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:54,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:54,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:54,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:54,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:54,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:54,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:54,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:54,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:54,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:54,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:54,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:54,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:54,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:54,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:54,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:54,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:54,367 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:11:54,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:54,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:54,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:54,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:54,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:54,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:54,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:54,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:54,388 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:54,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:54,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:54,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:54,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:54,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:11:54,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:54,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:54,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:54,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:54,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:54,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:54,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:54,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:54,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:54,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:54,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:54,392 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:11:54,392 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:11:54,393 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:54,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:54,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:54,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:11:54,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-12 02:11:54,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:54,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:54,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:54,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:54,664 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:54,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-12 02:11:54,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5186a37/85f5a47492d3492981ae5c8ebcff3474/FLAG6abc159f3 [2022-07-12 02:11:54,985 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:54,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-12 02:11:54,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5186a37/85f5a47492d3492981ae5c8ebcff3474/FLAG6abc159f3 [2022-07-12 02:11:55,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5186a37/85f5a47492d3492981ae5c8ebcff3474 [2022-07-12 02:11:55,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:55,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:55,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:55,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:55,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:55,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9040c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55, skipping insertion in model container [2022-07-12 02:11:55,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:55,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:55,598 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] [2022-07-12 02:11:55,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:55,611 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:55,676 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] [2022-07-12 02:11:55,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:55,694 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:55,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55 WrapperNode [2022-07-12 02:11:55,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:55,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:55,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:55,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:55,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,765 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-12 02:11:55,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:55,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:55,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:55,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:55,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:55,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:55,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:55,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:55,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (1/1) ... [2022-07-12 02:11:55,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:55,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:55,853 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) [2022-07-12 02:11:55,877 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 [2022-07-12 02:11:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:11:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:55,990 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:55,991 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:02,795 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:02,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:02,800 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:02,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:02 BoogieIcfgContainer [2022-07-12 02:12:02,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:02,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:02,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:02,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:02,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:55" (1/3) ... [2022-07-12 02:12:02,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b038e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:02, skipping insertion in model container [2022-07-12 02:12:02,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:55" (2/3) ... [2022-07-12 02:12:02,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b038e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:02, skipping insertion in model container [2022-07-12 02:12:02,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:02" (3/3) ... [2022-07-12 02:12:02,825 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-12 02:12:02,852 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:02,852 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:02,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:02,927 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@64a36258, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7095847b [2022-07-12 02:12:02,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:02,930 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) [2022-07-12 02:12:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:12:02,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:02,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:02,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:02,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:12:02,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:02,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058711976] [2022-07-12 02:12:02,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:02,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:02,994 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) [2022-07-12 02:12:03,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:12:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:04,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:12:04,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:12:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:12:04,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:12:04,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:12:04,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058711976] [2022-07-12 02:12:04,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058711976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:04,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:04,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:04,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945878821] [2022-07-12 02:12:04,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:04,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:04,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:12:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:04,161 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) [2022-07-12 02:12:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:04,170 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:12:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:04,172 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 [2022-07-12 02:12:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:04,176 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:12:04,176 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:12:04,178 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 [2022-07-12 02:12:04,181 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 [2022-07-12 02:12:04,181 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] [2022-07-12 02:12:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:12:04,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:12:04,199 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) [2022-07-12 02:12:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:12:04,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:12:04,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:04,201 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:12:04,201 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) [2022-07-12 02:12:04,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:12:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:12:04,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:04,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:04,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:12:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:12:04,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:04,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:12:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:04,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190462356] [2022-07-12 02:12:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:04,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:04,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:04,418 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) [2022-07-12 02:12:04,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:12:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:15,471 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:12:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:45,310 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 02:12:45,310 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:12:45,311 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:12:45,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 02:12:45,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:12:45,515 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:12:45,518 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:12:45,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:12:45 BoogieIcfgContainer [2022-07-12 02:12:45,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:12:45,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:12:45,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:12:45,551 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:12:45,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:02" (3/4) ... [2022-07-12 02:12:45,553 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 02:12:45,582 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:12:45,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:12:45,586 INFO L158 Benchmark]: Toolchain (without parser) took 50154.01ms. Allocated memory is still 56.6MB. Free memory was 42.1MB in the beginning and 33.3MB in the end (delta: 8.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-12 02:12:45,587 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:45,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.78ms. Allocated memory is still 56.6MB. Free memory was 41.9MB in the beginning and 40.2MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 02:12:45,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.76ms. Allocated memory is still 56.6MB. Free memory was 40.2MB in the beginning and 38.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:45,588 INFO L158 Benchmark]: Boogie Preprocessor took 39.65ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 37.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:45,588 INFO L158 Benchmark]: RCFGBuilder took 6996.20ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 28.6MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:12:45,588 INFO L158 Benchmark]: TraceAbstraction took 42727.61ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 35.2MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:45,588 INFO L158 Benchmark]: Witness Printer took 43.09ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:45,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.78ms. Allocated memory is still 56.6MB. Free memory was 41.9MB in the beginning and 40.2MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.76ms. Allocated memory is still 56.6MB. Free memory was 40.2MB in the beginning and 38.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.65ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 37.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6996.20ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 28.6MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 42727.61ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 35.2MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.09ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.9MB). 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: 42.6s, 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, 11.9s 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! [2022-07-12 02:12:45,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE