./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_2_8.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 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:12:42,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:12:42,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:12:42,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:12:42,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:12:42,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:12:42,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:12:42,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:12:42,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:12:42,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:12:42,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:12:42,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:12:42,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:12:42,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:12:42,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:12:42,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:12:42,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:12:42,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:12:42,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:12:42,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:12:42,398 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:12:42,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:12:42,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:12:42,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:12:42,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:12:42,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:12:42,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:12:42,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:12:42,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:12:42,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:12:42,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:12:42,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:12:42,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:12:42,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:12:42,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:12:42,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:12:42,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:12:42,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:12:42,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:12:42,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:12:42,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:12:42,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:12:42,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:12:42,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:12:42,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:12:42,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:12:42,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:12:42,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:12:42,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:12:42,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:12:42,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:12:42,450 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:12:42,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:12:42,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:12:42,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:12:42,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:12:42,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:12:42,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:12:42,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:12:42,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:12:42,452 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:12:42,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:12:42,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:12:42,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:12:42,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:12:42,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:12:42,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:12:42,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:42,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:12:42,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:12:42,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:12:42,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:12:42,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:12:42,456 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:12:42,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:12:42,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:12:42,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-07-12 02:12:42,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:12:42,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:12:42,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:12:42,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:12:42,683 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:12:42,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-12 02:12:42,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c796f7ee3/c3f25887531c47f5a0812d88488a24ac/FLAGb6d564b1a [2022-07-12 02:12:43,101 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:12:43,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-12 02:12:43,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c796f7ee3/c3f25887531c47f5a0812d88488a24ac/FLAGb6d564b1a [2022-07-12 02:12:43,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c796f7ee3/c3f25887531c47f5a0812d88488a24ac [2022-07-12 02:12:43,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:12:43,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:12:43,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:43,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:12:43,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:12:43,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c3fc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43, skipping insertion in model container [2022-07-12 02:12:43,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:12:43,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:12:43,281 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_2_8.i[1743,1756] [2022-07-12 02:12:43,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:43,290 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:12:43,304 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_2_8.i[1743,1756] [2022-07-12 02:12:43,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:43,315 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:12:43,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43 WrapperNode [2022-07-12 02:12:43,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:43,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:43,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:12:43,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:12:43,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,343 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-07-12 02:12:43,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:43,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:12:43,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:12:43,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:12:43,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:12:43,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:12:43,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:12:43,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:12:43,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (1/1) ... [2022-07-12 02:12:43,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:12:43,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:12:43,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:12:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:12:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:12:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:12:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:12:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:12:43,467 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:12:43,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:43,538 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:43,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:43,543 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:43,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43 BoogieIcfgContainer [2022-07-12 02:12:43,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:43,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:43,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:43,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:43,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:12:43" (1/3) ... [2022-07-12 02:12:43,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105adb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:43, skipping insertion in model container [2022-07-12 02:12:43,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:43" (2/3) ... [2022-07-12 02:12:43,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105adb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:43, skipping insertion in model container [2022-07-12 02:12:43,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43" (3/3) ... [2022-07-12 02:12:43,553 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-07-12 02:12:43,565 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:43,565 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:43,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:43,611 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@61dae74e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13498541 [2022-07-12 02:12:43,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:43,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:43,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:43,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:43,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:43,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:43,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-12 02:12:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:12:43,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004429738] [2022-07-12 02:12:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:12:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 02:12:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 02:12:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 02:12:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 02:12:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-12 02:12:43,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:12:43,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004429738] [2022-07-12 02:12:43,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004429738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:43,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:43,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:43,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697542636] [2022-07-12 02:12:43,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:43,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:43,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:12:43,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:43,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:43,870 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:43,888 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-12 02:12:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:43,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-12 02:12:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:43,896 INFO L225 Difference]: With dead ends: 43 [2022-07-12 02:12:43,896 INFO L226 Difference]: Without dead ends: 19 [2022-07-12 02:12:43,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:43,905 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:12:43,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:12:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-12 02:12:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-12 02:12:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-12 02:12:43,957 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-12 02:12:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:43,957 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-12 02:12:43,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-12 02:12:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:43,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:43,961 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:43,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:12:43,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-12 02:12:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:12:43,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789491836] [2022-07-12 02:12:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:12:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:44,001 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:12:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:44,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:12:44,045 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:12:44,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:12:44,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:12:44,059 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:12:44,063 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:12:44,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:12:44 BoogieIcfgContainer [2022-07-12 02:12:44,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:12:44,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:12:44,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:12:44,101 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:12:44,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:43" (3/4) ... [2022-07-12 02:12:44,104 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:12:44,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:12:44,106 INFO L158 Benchmark]: Toolchain (without parser) took 980.79ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.3MB in the beginning and 91.0MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:44,106 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:44,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.93ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 74.9MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:12:44,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.31ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:44,110 INFO L158 Benchmark]: Boogie Preprocessor took 15.37ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:44,113 INFO L158 Benchmark]: RCFGBuilder took 185.41ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 63.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:12:44,114 INFO L158 Benchmark]: TraceAbstraction took 552.58ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.8MB in the beginning and 91.6MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:44,116 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 91.0MB in the end (delta: 574.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:44,122 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 98.6MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.93ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 74.9MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.31ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.37ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.41ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 63.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 552.58ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.8MB in the beginning and 91.6MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 91.0MB in the end (delta: 574.3kB). 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 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=49] [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) VAL [f(IN)=50, IN=49] [L42] CALL, EXPR fp(IN) VAL [\old(x)=49] [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) VAL [f(IN)=50, fp(IN)=53, IN=49] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=51] [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)=51, x=51] [L44] RET, EXPR f(x) VAL [f(x)=52, IN=49, x=51] [L44] CALL, EXPR fp(x) VAL [\old(x)=51] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L44] RET, EXPR fp(x) VAL [f(x)=52, fp(x)=54, IN=49, x=51] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 02:12:44,170 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_2_8.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 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:12:46,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:12:46,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:12:46,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:12:46,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:12:46,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:12:46,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:12:46,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:12:46,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:12:46,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:12:46,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:12:46,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:12:46,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:12:46,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:12:46,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:12:46,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:12:46,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:12:46,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:12:46,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:12:46,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:12:46,184 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:12:46,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:12:46,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:12:46,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:12:46,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:12:46,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:12:46,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:12:46,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:12:46,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:12:46,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:12:46,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:12:46,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:12:46,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:12:46,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:12:46,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:12:46,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:12:46,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:12:46,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:12:46,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:12:46,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:12:46,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:12:46,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:12:46,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:12:46,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:12:46,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:12:46,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:12:46,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:12:46,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:12:46,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:12:46,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:12:46,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:12:46,260 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:12:46,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:12:46,261 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:12:46,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:12:46,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:12:46,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:12:46,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:12:46,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:12:46,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:12:46,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:12:46,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:12:46,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:12:46,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:12:46,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:12:46,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:12:46,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:12:46,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:12:46,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:12:46,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:46,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:12:46,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:12:46,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:12:46,266 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:12:46,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:12:46,266 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:12:46,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:12:46,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:12:46,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:12:46,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b45f5e4a7a74ad007db534387a803e6f6ecf5579d866d96b3759eca1ee7b29a [2022-07-12 02:12:46,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:12:46,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:12:46,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:12:46,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:12:46,608 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:12:46,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-12 02:12:46,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b2b39b6/6bd0d0b98fdc499d8433326022c6931a/FLAGcba5fe600 [2022-07-12 02:12:47,089 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:12:47,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2022-07-12 02:12:47,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b2b39b6/6bd0d0b98fdc499d8433326022c6931a/FLAGcba5fe600 [2022-07-12 02:12:47,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8b2b39b6/6bd0d0b98fdc499d8433326022c6931a [2022-07-12 02:12:47,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:12:47,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:12:47,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:47,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:12:47,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:12:47,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f489fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47, skipping insertion in model container [2022-07-12 02:12:47,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:12:47,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:12:47,653 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_2_8.i[1743,1756] [2022-07-12 02:12:47,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:47,664 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:12:47,696 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_2_8.i[1743,1756] [2022-07-12 02:12:47,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:12:47,732 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:12:47,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47 WrapperNode [2022-07-12 02:12:47,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:12:47,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:47,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:12:47,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:12:47,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,759 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-07-12 02:12:47,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:12:47,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:12:47,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:12:47,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:12:47,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:12:47,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:12:47,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:12:47,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:12:47,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (1/1) ... [2022-07-12 02:12:47,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:12:47,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:12:47,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:12:47,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:12:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:12:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-12 02:12:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-12 02:12:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:12:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-12 02:12:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-12 02:12:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:12:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:12:47,892 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:12:47,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:55,035 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:55,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:55,040 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:55,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55 BoogieIcfgContainer [2022-07-12 02:12:55,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:55,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:55,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:55,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:55,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:12:47" (1/3) ... [2022-07-12 02:12:55,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5bef71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:55, skipping insertion in model container [2022-07-12 02:12:55,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:12:47" (2/3) ... [2022-07-12 02:12:55,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5bef71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:55, skipping insertion in model container [2022-07-12 02:12:55,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55" (3/3) ... [2022-07-12 02:12:55,050 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2022-07-12 02:12:55,063 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:55,063 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:55,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:55,114 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@48b04caf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@56275432 [2022-07-12 02:12:55,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:55,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:55,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:55,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:55,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:55,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:55,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2022-07-12 02:12:55,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:55,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993075729] [2022-07-12 02:12:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:55,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:55,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:12:55,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:12:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:57,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:12:57,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:12:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-12 02:12:57,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:12:57,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:12:57,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993075729] [2022-07-12 02:12:57,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993075729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:57,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:57,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474793640] [2022-07-12 02:12:57,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:57,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:12:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:57,133 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:57,150 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-07-12 02:12:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:57,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-07-12 02:12:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:57,158 INFO L225 Difference]: With dead ends: 43 [2022-07-12 02:12:57,158 INFO L226 Difference]: Without dead ends: 19 [2022-07-12 02:12:57,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:57,165 INFO L413 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:12:57,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:12:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-12 02:12:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-12 02:12:57,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:12:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-12 02:12:57,196 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2022-07-12 02:12:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:57,196 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-12 02:12:57,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-12 02:12:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-12 02:12:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 02:12:57,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:57,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:57,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 02:12:57,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:12:57,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:57,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:57,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2022-07-12 02:12:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:57,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121229979] [2022-07-12 02:12:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:57,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 02:12:57,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:14:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:14:13,463 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:14:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:14:23,541 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 02:14:23,541 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:14:23,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:14:23,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 02:14:23,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:14:23,750 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:14:23,754 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:14:23,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:14:23 BoogieIcfgContainer [2022-07-12 02:14:23,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:14:23,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:14:23,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:14:23,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:14:23,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:55" (3/4) ... [2022-07-12 02:14:23,784 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 02:14:23,819 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:14:23,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:14:23,821 INFO L158 Benchmark]: Toolchain (without parser) took 96320.63ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 28.4MB in the beginning and 41.6MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:14:23,821 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:14:23,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.95ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 28.1MB in the beginning and 48.9MB in the end (delta: -20.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-12 02:14:23,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.81ms. Allocated memory is still 65.0MB. Free memory was 48.9MB in the beginning and 47.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:14:23,822 INFO L158 Benchmark]: Boogie Preprocessor took 21.59ms. Allocated memory is still 65.0MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:14:23,823 INFO L158 Benchmark]: RCFGBuilder took 7259.18ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 37.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:14:23,823 INFO L158 Benchmark]: TraceAbstraction took 88736.88ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 43.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-12 02:14:23,823 INFO L158 Benchmark]: Witness Printer took 38.26ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:14:23,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.95ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 28.1MB in the beginning and 48.9MB in the end (delta: -20.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.81ms. Allocated memory is still 65.0MB. Free memory was 48.9MB in the beginning and 47.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.59ms. Allocated memory is still 65.0MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 7259.18ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 37.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 88736.88ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 43.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 38.26ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 41.6MB 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 > -2.0f && IN < 2.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.8832679986953735] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.8832679986953735, \result=0.9841227531433105, x=1.8832679986953735] [L42] RET, EXPR f(IN) VAL [f(IN)=0.9841227531433105, IN=1.8832679986953735] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.8832679986953735] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.8832679986953735, \result=-0.18725715577602386, x=1.8832679986953735] [L42] RET, EXPR fp(IN) VAL [f(IN)=0.9841227531433105, fp(IN)=-0.18725715577602386, IN=1.8832679986953735] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=7.138729095458984] [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)=7.138729095458984, \result=288.46661376953125, x=7.138729095458984] [L44] RET, EXPR f(x) VAL [f(x)=288.46661376953125, IN=1.8832679986953735, x=7.138729095458984] [L44] CALL, EXPR fp(x) VAL [\old(x)=7.138729095458984] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=7.138729095458984, \result=267.55059814453125, x=7.138729095458984] [L44] RET, EXPR fp(x) VAL [f(x)=288.46661376953125, fp(x)=267.55059814453125, IN=1.8832679986953735, x=7.138729095458984] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=1.8832679986953735, x=6.060553073883057] [L51] reach_error() VAL [IN=1.8832679986953735, x=6.060553073883057] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 88.7s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 77.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 02:14:23,961 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