./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 90741c14eee92622488e9390ec37eb8bb78b90b3 ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 90741c14eee92622488e9390ec37eb8bb78b90b3 .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:10:42,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:10:42,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:10:42,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:10:42,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:10:42,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:10:42,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:10:42,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:10:42,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:10:42,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:10:42,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:10:42,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:10:42,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:10:42,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:10:42,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:10:42,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:10:42,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:10:42,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:10:42,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:10:42,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:10:42,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:10:42,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:10:42,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:10:42,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:10:42,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:10:42,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:10:42,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:10:42,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:10:42,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:10:42,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:10:42,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:10:42,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:10:42,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:10:42,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:10:42,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:10:42,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:10:42,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:10:42,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:10:42,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:10:42,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:10:42,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:10:42,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:10:42,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:10:42,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:10:42,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:10:42,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:10:42,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:10:42,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:10:42,637 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:10:42,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:10:42,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:10:42,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:10:42,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:10:42,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:10:42,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:10:42,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:10:42,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:10:42,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:10:42,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:10:42,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:10:42,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:10:42,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:10:42,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:10:42,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:10:42,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:10:42,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:10:42,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90741c14eee92622488e9390ec37eb8bb78b90b3 [2021-08-29 06:10:42,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:10:42,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:10:42,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:10:42,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:10:42,872 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:10:42,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2021-08-29 06:10:42,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9f90263/3d6ed4e7301848aa95f9b4e18b55a746/FLAG807a629ad [2021-08-29 06:10:43,297 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:10:43,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2021-08-29 06:10:43,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9f90263/3d6ed4e7301848aa95f9b4e18b55a746/FLAG807a629ad [2021-08-29 06:10:43,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9f90263/3d6ed4e7301848aa95f9b4e18b55a746 [2021-08-29 06:10:43,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:10:43,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:10:43,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:10:43,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:10:43,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:10:43,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f75c3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43, skipping insertion in model container [2021-08-29 06:10:43,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:10:43,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:10:43,457 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1224,1237] [2021-08-29 06:10:43,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:10:43,479 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:10:43,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1224,1237] [2021-08-29 06:10:43,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:10:43,526 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:10:43,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43 WrapperNode [2021-08-29 06:10:43,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:10:43,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:10:43,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:10:43,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:10:43,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:10:43,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:10:43,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:10:43,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:10:43,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:10:43,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:10:43,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:10:43,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:10:43,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (1/1) ... [2021-08-29 06:10:43,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:10:43,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:10:43,657 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) [2021-08-29 06:10:43,682 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 [2021-08-29 06:10:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:10:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:10:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:10:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:10:43,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:10:43,799 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:10:43,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:43 BoogieIcfgContainer [2021-08-29 06:10:43,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:10:43,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:10:43,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:10:43,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:10:43,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:10:43" (1/3) ... [2021-08-29 06:10:43,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165f741a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:10:43, skipping insertion in model container [2021-08-29 06:10:43,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:43" (2/3) ... [2021-08-29 06:10:43,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165f741a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:10:43, skipping insertion in model container [2021-08-29 06:10:43,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:43" (3/3) ... [2021-08-29 06:10:43,806 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2021-08-29 06:10:43,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:10:43,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:10:43,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:10:43,859 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:10:43,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:10:43,871 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) [2021-08-29 06:10:43,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:10:43,875 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:10:43,875 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:10:43,876 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:10:43,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:10:43,880 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-08-29 06:10:43,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:10:43,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609820734] [2021-08-29 06:10:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:10:43,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:10:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:10:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:10:44,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 06:10:44,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609820734] [2021-08-29 06:10:44,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609820734] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 06:10:44,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:10:44,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 06:10:44,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526312353] [2021-08-29 06:10:44,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:10:44,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 06:10:44,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:10:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:10:44,066 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) [2021-08-29 06:10:44,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:10:44,127 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-08-29 06:10:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:10:44,129 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 [2021-08-29 06:10:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:10:44,134 INFO L225 Difference]: With dead ends: 23 [2021-08-29 06:10:44,134 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 06:10:44,136 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:10:44,138 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.01ms IncrementalHoareTripleChecker+Time [2021-08-29 06:10:44,138 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 51.01ms Time] [2021-08-29 06:10:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 06:10:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 06:10:44,171 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) [2021-08-29 06:10:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-29 06:10:44,173 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-08-29 06:10:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:10:44,173 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-29 06:10:44,173 INFO L471 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) [2021-08-29 06:10:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-29 06:10:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:10:44,174 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:10:44,174 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:10:44,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:10:44,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:10:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:10:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-08-29 06:10:44,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:10:44,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201485057] [2021-08-29 06:10:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:10:44,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:10:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:10:44,199 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:10:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:10:44,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:10:44,233 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:10:44,235 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:10:44,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 06:10:44,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:10:44,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:10:44 BoogieIcfgContainer [2021-08-29 06:10:44,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:10:44,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:10:44,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:10:44,262 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:10:44,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:43" (3/4) ... [2021-08-29 06:10:44,264 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:10:44,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:10:44,265 INFO L158 Benchmark]: Toolchain (without parser) took 946.82ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 44.0MB in the beginning and 43.5MB in the end (delta: 519.6kB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-08-29 06:10:44,265 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:10:44,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.29ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 46.6MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:10:44,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 62.9MB. Free memory was 46.4MB in the beginning and 45.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:10:44,266 INFO L158 Benchmark]: Boogie Preprocessor took 36.21ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.0MB in the end (delta: 995.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:10:44,267 INFO L158 Benchmark]: RCFGBuilder took 170.98ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 36.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:10:44,267 INFO L158 Benchmark]: TraceAbstraction took 460.40ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 35.4MB in the beginning and 43.8MB in the end (delta: -8.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-08-29 06:10:44,267 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 43.5MB in the end (delta: 343.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:10:44,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.29ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 46.6MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 62.9MB. Free memory was 46.4MB in the beginning and 45.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.21ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.0MB in the end (delta: 995.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 170.98ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 36.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 460.40ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 35.4MB in the beginning and 43.8MB in the end (delta: -8.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 43.5MB in the end (delta: 343.6kB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 42]: 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 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 392.93ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.20ms, AutomataDifference: 98.63ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.15ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 51.01ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 46.92ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms 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, 0.00ms DumpTime, AutomataMinimizationStatistics: 9.96ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.81ms SsaConstructionTime, 40.64ms SatisfiabilityAnalysisTime, 57.77ms 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 [2021-08-29 06:10:44,302 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:10:45,837 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-29 06:10:45,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:10:45,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:10:45,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:10:45,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:10:45,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:10:45,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:10:45,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:10:45,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:10:45,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:10:45,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:10:45,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:10:45,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:10:45,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:10:45,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:10:45,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:10:45,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:10:45,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:10:45,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:10:45,949 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:10:45,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:10:45,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:10:45,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:10:45,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:10:45,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:10:45,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:10:45,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:10:45,956 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:10:45,956 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:10:45,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:10:45,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:10:45,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:10:45,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90741c14eee92622488e9390ec37eb8bb78b90b3 [2021-08-29 06:10:46,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:10:46,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:10:46,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:10:46,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:10:46,219 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:10:46,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2021-08-29 06:10:46,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a1fb220/006c142fc77c46788852fe4ff20a21d5/FLAG9f3f30eac [2021-08-29 06:10:46,625 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:10:46,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i [2021-08-29 06:10:46,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a1fb220/006c142fc77c46788852fe4ff20a21d5/FLAG9f3f30eac [2021-08-29 06:10:46,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a1fb220/006c142fc77c46788852fe4ff20a21d5 [2021-08-29 06:10:46,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:10:46,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:10:46,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:10:46,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:10:46,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:10:46,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d850056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46, skipping insertion in model container [2021-08-29 06:10:46,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:10:46,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:10:46,779 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1224,1237] [2021-08-29 06:10:46,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:10:46,799 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:10:46,838 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_4.i[1224,1237] [2021-08-29 06:10:46,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:10:46,848 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:10:46,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46 WrapperNode [2021-08-29 06:10:46,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:10:46,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:10:46,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:10:46,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:10:46,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:10:46,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:10:46,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:10:46,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:10:46,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:10:46,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:10:46,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:10:46,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:10:46,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (1/1) ... [2021-08-29 06:10:46,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:10:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:10:46,910 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) [2021-08-29 06:10:46,933 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 [2021-08-29 06:10:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:10:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:10:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:10:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:10:47,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:10:47,051 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:10:47,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:47 BoogieIcfgContainer [2021-08-29 06:10:47,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:10:47,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:10:47,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:10:47,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:10:47,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:10:46" (1/3) ... [2021-08-29 06:10:47,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e29e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:10:47, skipping insertion in model container [2021-08-29 06:10:47,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:10:46" (2/3) ... [2021-08-29 06:10:47,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e29e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:10:47, skipping insertion in model container [2021-08-29 06:10:47,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:47" (3/3) ... [2021-08-29 06:10:47,057 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_4.i [2021-08-29 06:10:47,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:10:47,060 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:10:47,087 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:10:47,091 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:10:47,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:10:47,099 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) [2021-08-29 06:10:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:10:47,102 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:10:47,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:10:47,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:10:47,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:10:47,106 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-08-29 06:10:47,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:10:47,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111004215] [2021-08-29 06:10:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:10:47,121 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:10:47,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:10:47,122 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) [2021-08-29 06:10:47,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:10:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:10:47,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 06:10:47,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:10:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:10:48,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:10:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:10:48,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:10:48,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111004215] [2021-08-29 06:10:48,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111004215] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:10:48,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:10:48,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 06:10:48,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418086389] [2021-08-29 06:10:48,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:10:48,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:10:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:10:48,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:10:48,098 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) [2021-08-29 06:10:51,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:10:53,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:10:56,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:10:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:10:56,439 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-08-29 06:10:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:10:56,441 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 [2021-08-29 06:10:56,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:10:56,445 INFO L225 Difference]: With dead ends: 23 [2021-08-29 06:10:56,445 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 06:10:56,446 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:10:56,449 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7821.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8328.53ms IncrementalHoareTripleChecker+Time [2021-08-29 06:10:56,449 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 8328.53ms Time] [2021-08-29 06:10:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 06:10:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 06:10:56,466 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) [2021-08-29 06:10:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-29 06:10:56,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-08-29 06:10:56,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:10:56,468 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-29 06:10:56,468 INFO L471 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) [2021-08-29 06:10:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-29 06:10:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:10:56,469 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:10:56,469 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:10:56,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 06:10:56,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:10:56,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:10:56,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:10:56,697 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-08-29 06:10:56,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:10:56,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46749067] [2021-08-29 06:10:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:10:56,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:10:56,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:10:56,701 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) [2021-08-29 06:10:56,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 06:13:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:13:24,963 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:13:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:13:33,529 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 06:13:33,530 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:13:33,532 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:13:33,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 06:13:33,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:13:33,743 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:13:33,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:13:33 BoogieIcfgContainer [2021-08-29 06:13:33,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:13:33,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:13:33,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:13:33,757 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:13:33,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:10:47" (3/4) ... [2021-08-29 06:13:33,758 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 06:13:33,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:13:33,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:13:33,777 INFO L158 Benchmark]: Toolchain (without parser) took 167131.16ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.6MB in the beginning and 50.1MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:13:33,777 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:13:33,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.47ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.4MB in the beginning and 54.1MB in the end (delta: -24.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-08-29 06:13:33,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.36ms. Allocated memory is still 71.3MB. Free memory was 54.1MB in the beginning and 52.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:13:33,778 INFO L158 Benchmark]: Boogie Preprocessor took 15.02ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 51.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:13:33,779 INFO L158 Benchmark]: RCFGBuilder took 164.11ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 42.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:13:33,779 INFO L158 Benchmark]: TraceAbstraction took 166703.04ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 52.0MB in the end (delta: -9.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-08-29 06:13:33,779 INFO L158 Benchmark]: Witness Printer took 19.93ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 50.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:13:33,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.47ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.4MB in the beginning and 54.1MB in the end (delta: -24.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.36ms. Allocated memory is still 71.3MB. Free memory was 54.1MB in the beginning and 52.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.02ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 51.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 164.11ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 42.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 166703.04ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 52.0MB in the end (delta: -9.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 19.93ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 50.1MB in the end (delta: 1.5MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 166656.72ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.96ms, AutomataDifference: 8369.17ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.21ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 8328.53ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 7821.31ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.20ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms Time, 0.00ms 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, 0.00ms DumpTime, AutomataMinimizationStatistics: 9.19ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.43ms SsaConstructionTime, 149002.27ms SatisfiabilityAnalysisTime, 144.96ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-08-29 06:13:33,894 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...