./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:54:35,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:54:35,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:54:35,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:54:35,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:54:35,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:54:35,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:54:35,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:54:35,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:54:35,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:54:35,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:54:35,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:54:35,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:54:35,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:54:35,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:54:35,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:54:35,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:54:35,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:54:35,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:54:35,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:54:35,624 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:54:35,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:54:35,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:54:35,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:54:35,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:54:35,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:54:35,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:54:35,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:54:35,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:54:35,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:54:35,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:54:35,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:54:35,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:54:35,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:54:35,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:54:35,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:54:35,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:54:35,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:54:35,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:54:35,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:54:35,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:54:35,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:54:35,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 13:54:35,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:54:35,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:54:35,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:54:35,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:54:35,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:54:35,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:54:35,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:54:35,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:54:35,677 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:54:35,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:54:35,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:54:35,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 13:54:35,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:54:35,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:54:35,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:54:35,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:54:35,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:54:35,679 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:54:35,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:54:35,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:54:35,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:54:35,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:54:35,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:54:35,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:54:35,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:35,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:54:35,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:54:35,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:54:35,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 13:54:35,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 13:54:35,683 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:54:35,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:54:35,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:54:35,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-13 13:54:35,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:54:35,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:54:35,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:54:35,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:54:35,975 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:54:35,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-13 13:54:36,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df6cc861/ead672c0a13146b5950f065d45765602/FLAG5f3b50dca [2022-07-13 13:54:36,428 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:54:36,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-13 13:54:36,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df6cc861/ead672c0a13146b5950f065d45765602/FLAG5f3b50dca [2022-07-13 13:54:36,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df6cc861/ead672c0a13146b5950f065d45765602 [2022-07-13 13:54:36,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:54:36,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:54:36,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:36,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:54:36,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:54:36,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:36" (1/1) ... [2022-07-13 13:54:36,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492208c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:36, skipping insertion in model container [2022-07-13 13:54:36,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:36" (1/1) ... [2022-07-13 13:54:36,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:54:36,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:54:37,082 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_5.i[1722,1735] [2022-07-13 13:54:37,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:37,091 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:54:37,114 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_5.i[1722,1735] [2022-07-13 13:54:37,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:37,130 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:54:37,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37 WrapperNode [2022-07-13 13:54:37,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:37,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:37,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:54:37,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:54:37,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,162 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-13 13:54:37,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:37,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:54:37,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:54:37,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:54:37,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:54:37,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:54:37,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:54:37,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:54:37,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (1/1) ... [2022-07-13 13:54:37,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:37,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:54:37,232 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 13:54:37,246 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 13:54:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:54:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 13:54:37,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:54:37,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:54:37,330 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:54:37,332 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:54:37,437 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:54:37,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:54:37,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:54:37,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:37 BoogieIcfgContainer [2022-07-13 13:54:37,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:54:37,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:54:37,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:54:37,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:54:37,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:54:36" (1/3) ... [2022-07-13 13:54:37,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225ac5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:37, skipping insertion in model container [2022-07-13 13:54:37,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:37" (2/3) ... [2022-07-13 13:54:37,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225ac5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:37, skipping insertion in model container [2022-07-13 13:54:37,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:37" (3/3) ... [2022-07-13 13:54:37,453 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-13 13:54:37,466 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:54:37,466 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:54:37,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:54:37,524 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@6d06cfe2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@280f7c42 [2022-07-13 13:54:37,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:54:37,528 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 13:54:37,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:37,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:37,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:37,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:37,550 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:54:37,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:54:37,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872671244] [2022-07-13 13:54:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:54:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:54:37,681 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 13:54:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:54:37,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872671244] [2022-07-13 13:54:37,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872671244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:54:37,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:54:37,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:54:37,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729949753] [2022-07-13 13:54:37,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:54:37,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:54:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:54:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:54:37,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:54:37,719 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 13:54:37,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:54:37,730 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:54:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:54:37,732 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 13:54:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:54:37,738 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:54:37,738 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:54:37,741 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 13:54:37,745 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 13:54:37,746 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 13:54:37,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:54:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:54:37,770 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 13:54:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:54:37,772 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:54:37,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:54:37,773 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:54:37,773 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 13:54:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:54:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:37,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:37,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:37,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 13:54:37,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:54:37,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:54:37,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573876922] [2022-07-13 13:54:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:54:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:54:37,804 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:54:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:54:37,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 13:54:37,850 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:54:37,852 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:54:37,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 13:54:37,857 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:54:37,863 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:54:37,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:54:37 BoogieIcfgContainer [2022-07-13 13:54:37,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:54:37,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:54:37,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:54:37,887 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:54:37,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:37" (3/4) ... [2022-07-13 13:54:37,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 13:54:37,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:54:37,891 INFO L158 Benchmark]: Toolchain (without parser) took 1046.32ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 94.0MB in the beginning and 147.2MB in the end (delta: -53.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:37,891 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:37,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.13ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 100.8MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:54:37,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.21ms. Allocated memory is still 125.8MB. Free memory was 100.8MB in the beginning and 99.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:54:37,892 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 125.8MB. Free memory was 99.0MB in the beginning and 98.2MB in the end (delta: 823.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:37,893 INFO L158 Benchmark]: RCFGBuilder took 249.10ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 89.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:54:37,893 INFO L158 Benchmark]: TraceAbstraction took 439.28ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 89.0MB in the beginning and 148.0MB in the end (delta: -59.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:37,894 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 172.0MB. Free memory was 148.0MB in the beginning and 147.2MB in the end (delta: 838.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:54:37,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 37.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.13ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 100.8MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.21ms. Allocated memory is still 125.8MB. Free memory was 100.8MB in the beginning and 99.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 125.8MB. Free memory was 99.0MB in the beginning and 98.2MB in the end (delta: 823.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.10ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 89.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 439.28ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 89.0MB in the beginning and 148.0MB in the end (delta: -59.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 172.0MB. Free memory was 148.0MB in the beginning and 147.2MB in the end (delta: 838.9kB). 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 - 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 > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [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: 0.4s, 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 [2022-07-13 13:54:37,930 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_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:54:39,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:54:39,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:54:39,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:54:39,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:54:39,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:54:39,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:54:39,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:54:39,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:54:39,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:54:39,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:54:39,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:54:39,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:54:39,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:54:39,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:54:39,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:54:39,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:54:39,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:54:39,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:54:39,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:54:39,835 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:54:39,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:54:39,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:54:39,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:54:39,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:54:39,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:54:39,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:54:39,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:54:39,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:54:39,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:54:39,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:54:39,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:54:39,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:54:39,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:54:39,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:54:39,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:54:39,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:54:39,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:54:39,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:54:39,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:54:39,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:54:39,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:54:39,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 13:54:39,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:54:39,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:54:39,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:54:39,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:54:39,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:54:39,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:54:39,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:54:39,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:54:39,887 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:54:39,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:54:39,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:54:39,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:54:39,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:54:39,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:54:39,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:54:39,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:54:39,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 13:54:39,899 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 13:54:39,899 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 13:54:39,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:54:39,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:54:39,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:54:39,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:54:39,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:54:39,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:54:39,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:54:39,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:39,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:54:39,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:54:39,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:54:39,902 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 13:54:39,902 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 13:54:39,902 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:54:39,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:54:39,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:54:39,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 13:54:39,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-13 13:54:40,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:54:40,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:54:40,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:54:40,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:54:40,236 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:54:40,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-13 13:54:40,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2b4123e/f8b1797ac29d4e81a85bc03df9493165/FLAGa43b1340d [2022-07-13 13:54:40,746 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:54:40,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-13 13:54:40,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2b4123e/f8b1797ac29d4e81a85bc03df9493165/FLAGa43b1340d [2022-07-13 13:54:40,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2b4123e/f8b1797ac29d4e81a85bc03df9493165 [2022-07-13 13:54:40,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:54:40,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:54:40,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:40,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:54:40,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:54:40,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:40" (1/1) ... [2022-07-13 13:54:40,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e73400a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:40, skipping insertion in model container [2022-07-13 13:54:40,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:40" (1/1) ... [2022-07-13 13:54:40,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:54:40,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:54:40,940 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_5.i[1722,1735] [2022-07-13 13:54:40,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:40,956 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:54:40,995 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_5.i[1722,1735] [2022-07-13 13:54:40,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:41,007 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:54:41,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41 WrapperNode [2022-07-13 13:54:41,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:41,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:41,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:54:41,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:54:41,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,037 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-13 13:54:41,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:41,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:54:41,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:54:41,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:54:41,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:54:41,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:54:41,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:54:41,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:54:41,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (1/1) ... [2022-07-13 13:54:41,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:41,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:54:41,094 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 13:54:41,097 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 13:54:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:54:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 13:54:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:54:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:54:41,176 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:54:41,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:54:47,900 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:54:47,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:54:47,905 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:54:47,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:47 BoogieIcfgContainer [2022-07-13 13:54:47,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:54:47,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:54:47,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:54:47,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:54:47,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:54:40" (1/3) ... [2022-07-13 13:54:47,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c43d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:47, skipping insertion in model container [2022-07-13 13:54:47,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:41" (2/3) ... [2022-07-13 13:54:47,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c43d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:47, skipping insertion in model container [2022-07-13 13:54:47,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:47" (3/3) ... [2022-07-13 13:54:47,919 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-13 13:54:47,937 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:54:47,937 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:54:47,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:54:47,981 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@845707d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@178d783c [2022-07-13 13:54:47,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:54:47,985 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 13:54:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:47,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:48,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:48,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:54:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:54:48,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267853988] [2022-07-13 13:54:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:48,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:54:48,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:54:48,019 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 13:54:48,021 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 13:54:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:54:48,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 13:54:48,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:54:48,930 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 13:54:48,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:54:48,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 13:54:48,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267853988] [2022-07-13 13:54:48,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267853988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:54:48,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:54:48,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:54:48,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298980993] [2022-07-13 13:54:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:54:48,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:54:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 13:54:48,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:54:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:54:48,972 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 13:54:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:54:48,985 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:54:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:54:48,987 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 13:54:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:54:48,993 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:54:48,994 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:54:48,996 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 13:54:49,003 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 13:54:49,005 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 13:54:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:54:49,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:54:49,029 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 13:54:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:54:49,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:54:49,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:54:49,031 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:54:49,031 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 13:54:49,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:54:49,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:49,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:49,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:49,074 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 13:54:49,251 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 13:54:49,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:49,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:54:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:54:49,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688082682] [2022-07-13 13:54:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:49,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:54:49,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:54:49,258 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 13:54:49,260 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 13:55:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:55:09,186 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:55:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:55:28,957 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 13:55:28,957 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:55:28,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:55:29,005 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 13:55:29,161 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 13:55:29,164 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:55:29,170 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:55:29,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:55:29 BoogieIcfgContainer [2022-07-13 13:55:29,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:55:29,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:55:29,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:55:29,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:55:29,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:47" (3/4) ... [2022-07-13 13:55:29,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 13:55:29,231 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 13:55:29,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:55:29,232 INFO L158 Benchmark]: Toolchain (without parser) took 48455.53ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 35.5MB in the beginning and 55.6MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:29,232 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:29,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.24ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 39.3MB in the end (delta: -4.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 13:55:29,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 56.6MB. Free memory was 39.3MB in the beginning and 37.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:55:29,234 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:55:29,234 INFO L158 Benchmark]: RCFGBuilder took 6846.61ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 27.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:55:29,235 INFO L158 Benchmark]: TraceAbstraction took 41290.20ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 27.3MB in the beginning and 57.7MB in the end (delta: -30.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-07-13 13:55:29,235 INFO L158 Benchmark]: Witness Printer took 30.63ms. Allocated memory is still 75.5MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:55:29,238 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 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.24ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 39.3MB in the end (delta: -4.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 56.6MB. Free memory was 39.3MB in the beginning and 37.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6846.61ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 27.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 41290.20ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 27.3MB in the beginning and 57.7MB in the end (delta: -30.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 30.63ms. Allocated memory is still 75.5MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). 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 > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.8173828125, \result=-0.7294540405273438, x=-0.8173828125] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.8173828125, \result=0.684955894947052, x=-0.8173828125] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.8173828125, x=0.24758219718933105] [L51] reach_error() VAL [IN=-0.8173828125, x=0.24758219718933105] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.2s, 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, 20.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 13:55:29,396 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