./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:11:49,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:49,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:49,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:49,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:49,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:49,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:49,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:49,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:49,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:49,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:49,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:49,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:49,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:49,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:49,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:49,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:49,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:49,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:49,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:49,132 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:49,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:49,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:49,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:49,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:49,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:49,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:49,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:49,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:49,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:49,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:49,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:49,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:49,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:49,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:49,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:49,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:49,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:49,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:49,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:49,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:49,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:49,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:11:49,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:49,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:49,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:49,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:49,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:49,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:49,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:49,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:49,173 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:49,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:49,174 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:49,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:11:49,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:49,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:49,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:49,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:49,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:49,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:49,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:49,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:49,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:49,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:49,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:49,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:49,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:49,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:49,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:49,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:49,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:11:49,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:11:49,183 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:49,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:49,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:49,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-12 02:11:49,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:49,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:49,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:49,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:49,378 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:49,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-12 02:11:49,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255ae3ab1/33fd274d3a4b42639c18600cfc641536/FLAG3ebf8f163 [2022-07-12 02:11:49,782 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:49,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-12 02:11:49,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255ae3ab1/33fd274d3a4b42639c18600cfc641536/FLAG3ebf8f163 [2022-07-12 02:11:50,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255ae3ab1/33fd274d3a4b42639c18600cfc641536 [2022-07-12 02:11:50,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:50,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:50,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:50,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:50,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:50,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bd800c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50, skipping insertion in model container [2022-07-12 02:11:50,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:50,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:50,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2022-07-12 02:11:50,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:50,407 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:50,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2022-07-12 02:11:50,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:50,428 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:50,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50 WrapperNode [2022-07-12 02:11:50,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:50,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:50,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:50,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:50,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,450 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-12 02:11:50,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:50,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:50,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:50,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:50,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:50,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:50,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:50,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:50,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (1/1) ... [2022-07-12 02:11:50,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:50,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:11:50,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:11:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:11:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:50,597 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:50,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:11:50,658 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:11:50,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:11:50,662 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:11:50,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:50 BoogieIcfgContainer [2022-07-12 02:11:50,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:11:50,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:11:50,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:11:50,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:11:50,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:50" (1/3) ... [2022-07-12 02:11:50,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700548fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:50, skipping insertion in model container [2022-07-12 02:11:50,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:50" (2/3) ... [2022-07-12 02:11:50,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700548fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:50, skipping insertion in model container [2022-07-12 02:11:50,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:50" (3/3) ... [2022-07-12 02:11:50,674 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-12 02:11:50,687 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:11:50,687 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:11:50,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:11:50,721 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@7f2af6e0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@184f0a44 [2022-07-12 02:11:50,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:11:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:11:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:50,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:50,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:50,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:50,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:11:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105795083] [2022-07-12 02:11:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:50,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:11:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:11:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:11:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105795083] [2022-07-12 02:11:50,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105795083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:11:50,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:11:50,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:11:50,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708135407] [2022-07-12 02:11:50,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:11:50,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:11:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:11:50,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:11:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:11:50,867 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:11:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:11:50,877 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:11:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:11:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-12 02:11:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:11:50,884 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:11:50,884 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:11:50,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:11:50,890 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:11:50,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:11:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:11:50,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:11:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:11:50,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:11:50,913 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:11:50,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:11:50,913 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:11:50,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:11:50,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:11:50,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:50,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:50,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:50,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:11:50,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:11:50,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:50,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595420209] [2022-07-12 02:11:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:50,946 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:11:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:50,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:11:50,985 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:11:50,986 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:11:50,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:11:50,990 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:11:50,994 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:11:51,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:11:51 BoogieIcfgContainer [2022-07-12 02:11:51,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:11:51,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:11:51,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:11:51,018 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:11:51,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:50" (3/4) ... [2022-07-12 02:11:51,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:11:51,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:11:51,022 INFO L158 Benchmark]: Toolchain (without parser) took 786.92ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.7MB in the beginning and 87.4MB in the end (delta: -29.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:51,022 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 74.3MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:51,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.35ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 69.8MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:11:51,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.00ms. Allocated memory is still 94.4MB. Free memory was 69.8MB in the beginning and 68.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:51,024 INFO L158 Benchmark]: Boogie Preprocessor took 12.08ms. Allocated memory is still 94.4MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:51,026 INFO L158 Benchmark]: RCFGBuilder took 200.54ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 58.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:11:51,026 INFO L158 Benchmark]: TraceAbstraction took 351.76ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.9MB in the beginning and 88.0MB in the end (delta: -30.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:51,027 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 113.2MB. Free memory was 88.0MB in the beginning and 87.4MB in the end (delta: 615.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:51,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 74.3MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.35ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 69.8MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.00ms. Allocated memory is still 94.4MB. Free memory was 69.8MB in the beginning and 68.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.08ms. Allocated memory is still 94.4MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 200.54ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 58.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 351.76ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.9MB in the beginning and 88.0MB in the end (delta: -30.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 113.2MB. Free memory was 88.0MB in the beginning and 87.4MB in the end (delta: 615.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 02:11:51,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:11:52,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:52,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:52,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:52,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:52,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:52,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:52,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:52,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:52,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:52,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:52,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:52,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:52,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:52,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:52,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:52,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:52,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:52,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:52,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:52,883 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:52,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:52,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:52,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:52,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:52,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:52,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:52,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:52,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:52,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:52,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:52,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:52,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:52,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:52,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:52,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:52,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:52,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:52,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:52,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:52,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:52,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:52,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:11:52,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:52,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:52,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:52,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:52,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:52,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:52,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:52,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:52,933 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:52,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:52,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:52,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:52,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:11:52,935 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:11:52,936 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:52,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:52,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:52,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:52,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:52,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:52,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:52,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:52,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:52,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:52,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:52,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:11:52,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:11:52,938 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:52,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:52,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:52,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:11:52,939 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2022-07-12 02:11:53,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:53,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:53,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:53,247 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:53,248 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:53,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-12 02:11:53,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3742be772/170c95dd568c43569b9246b25c99e3fd/FLAGe85b77920 [2022-07-12 02:11:53,636 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:53,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2022-07-12 02:11:53,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3742be772/170c95dd568c43569b9246b25c99e3fd/FLAGe85b77920 [2022-07-12 02:11:54,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3742be772/170c95dd568c43569b9246b25c99e3fd [2022-07-12 02:11:54,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:54,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:54,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:54,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:54,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:54,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a7f4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54, skipping insertion in model container [2022-07-12 02:11:54,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:54,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:54,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2022-07-12 02:11:54,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:54,172 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:54,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2022-07-12 02:11:54,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:54,233 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:54,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54 WrapperNode [2022-07-12 02:11:54,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:54,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:54,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:54,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:54,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,281 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-12 02:11:54,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:54,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:54,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:54,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:54,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:54,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:54,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:54,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:54,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (1/1) ... [2022-07-12 02:11:54,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:54,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:54,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 02:11:54,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 02:11:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:11:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:54,432 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:54,433 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:12:01,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:12:01,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:12:01,235 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:12:01,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:01 BoogieIcfgContainer [2022-07-12 02:12:01,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:12:01,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:12:01,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:12:01,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:12:01,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:54" (1/3) ... [2022-07-12 02:12:01,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a05bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:01, skipping insertion in model container [2022-07-12 02:12:01,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:54" (2/3) ... [2022-07-12 02:12:01,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a05bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:12:01, skipping insertion in model container [2022-07-12 02:12:01,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:01" (3/3) ... [2022-07-12 02:12:01,242 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2022-07-12 02:12:01,252 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:12:01,252 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:12:01,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:12:01,298 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@4f6ed4c0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a969273 [2022-07-12 02:12:01,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:12:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:12:01,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:12:01,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:01,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:01,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:12:01,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:01,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103491232] [2022-07-12 02:12:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:01,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:01,335 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 02:12:01,341 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 02:12:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:12:02,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:12:02,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:12:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:12:02,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:12:02,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:12:02,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103491232] [2022-07-12 02:12:02,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103491232] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:12:02,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:12:02,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:12:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562853707] [2022-07-12 02:12:02,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:12:02,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:12:02,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:12:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:12:02,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:02,377 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:12:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:12:02,385 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:12:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:12:02,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-12 02:12:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:12:02,391 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:12:02,391 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:12:02,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:12:02,398 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 02:12:02,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 02:12:02,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:12:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:12:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:12:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:12:02,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:12:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:12:02,424 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:12:02,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:12:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:12:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:12:02,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:12:02,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:12:02,454 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 02:12:02,627 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 02:12:02,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:12:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:12:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:12:02,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:12:02,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200262723] [2022-07-12 02:12:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:12:02,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:12:02,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:12:02,631 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 02:12:02,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:12:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:26,245 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:12:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:12:49,424 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 02:12:49,424 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:12:49,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:12:49,481 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 02:12:49,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:12:49,635 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:12:49,638 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:12:49,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:12:49 BoogieIcfgContainer [2022-07-12 02:12:49,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:12:49,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:12:49,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:12:49,655 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:12:49,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:12:01" (3/4) ... [2022-07-12 02:12:49,657 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 02:12:49,679 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:12:49,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:12:49,680 INFO L158 Benchmark]: Toolchain (without parser) took 55639.97ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 46.0MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:49,680 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:49,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.47ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.0MB in the beginning and 50.7MB in the end (delta: -18.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-12 02:12:49,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.35ms. Allocated memory is still 67.1MB. Free memory was 50.7MB in the beginning and 49.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:49,681 INFO L158 Benchmark]: Boogie Preprocessor took 36.62ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 47.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:12:49,682 INFO L158 Benchmark]: RCFGBuilder took 6916.95ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 39.1MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:12:49,682 INFO L158 Benchmark]: TraceAbstraction took 48416.78ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 47.9MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 02:12:49,682 INFO L158 Benchmark]: Witness Printer took 24.11ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:12:49,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.47ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.0MB in the beginning and 50.7MB in the end (delta: -18.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.35ms. Allocated memory is still 67.1MB. Free memory was 50.7MB in the beginning and 49.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.62ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 47.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6916.95ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 39.1MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 48416.78ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 47.9MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 24.11ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.8173828125, \result=-0.7294540405273438, x=-0.8173828125] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.8173828125, \result=0.684955894947052, x=-0.8173828125] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.8173828125, x=0.24758219718933105] [L51] reach_error() VAL [IN=-0.8173828125, x=0.24758219718933105] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 24.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 02:12:49,821 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