./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_3.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_3.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 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:11:33,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:33,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:33,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:33,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:33,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:33,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:33,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:33,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:33,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:33,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:33,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:33,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:33,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:33,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:33,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:33,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:33,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:33,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:33,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:33,123 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:33,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:33,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:33,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:33,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:33,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:33,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:33,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:33,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:33,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:33,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:33,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:33,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:33,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:33,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:33,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:33,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:33,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:33,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:33,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:33,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:33,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:33,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:11:33,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:33,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:33,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:33,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:33,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:33,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:33,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:33,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:33,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:33,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:33,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:33,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:33,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:11:33,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:11:33,161 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:33,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:33,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:33,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2022-07-12 02:11:33,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:33,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:33,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:33,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:33,388 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:33,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-12 02:11:33,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f009c64fb/7f50835af3b5495483dc9c6ab86411e5/FLAG1a110e933 [2022-07-12 02:11:33,825 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:33,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-12 02:11:33,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f009c64fb/7f50835af3b5495483dc9c6ab86411e5/FLAG1a110e933 [2022-07-12 02:11:33,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f009c64fb/7f50835af3b5495483dc9c6ab86411e5 [2022-07-12 02:11:33,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:33,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:33,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:33,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:33,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:33,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:33" (1/1) ... [2022-07-12 02:11:33,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878501f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:33, skipping insertion in model container [2022-07-12 02:11:33,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:33" (1/1) ... [2022-07-12 02:11:33,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:33,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:34,044 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_3.i[1722,1735] [2022-07-12 02:11:34,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:34,052 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:34,070 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_3.i[1722,1735] [2022-07-12 02:11:34,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:34,084 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:34,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34 WrapperNode [2022-07-12 02:11:34,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:34,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:34,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:34,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:34,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,109 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-12 02:11:34,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:34,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:34,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:34,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:34,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:34,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:34,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:34,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:34,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (1/1) ... [2022-07-12 02:11:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:34,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:34,167 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 02:11:34,173 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 02:11:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:11:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:34,233 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:34,234 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:11:34,309 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:11:34,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:11:34,313 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:11:34,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:34 BoogieIcfgContainer [2022-07-12 02:11:34,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:11:34,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:11:34,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:11:34,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:11:34,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:33" (1/3) ... [2022-07-12 02:11:34,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6244364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:34, skipping insertion in model container [2022-07-12 02:11:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:34" (2/3) ... [2022-07-12 02:11:34,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6244364f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:34, skipping insertion in model container [2022-07-12 02:11:34,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:34" (3/3) ... [2022-07-12 02:11:34,321 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2022-07-12 02:11:34,330 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:11:34,331 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:11:34,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:11:34,373 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@759affaa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a2d178a [2022-07-12 02:11:34,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:11:34,376 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 02:11:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:34,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:34,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:34,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:34,385 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:11:34,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:34,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383169101] [2022-07-12 02:11:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:34,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:11:34,490 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 02:11:34,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:11:34,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383169101] [2022-07-12 02:11:34,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383169101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:11:34,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:11:34,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:11:34,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057536710] [2022-07-12 02:11:34,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:11:34,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:11:34,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:11:34,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:11:34,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:11:34,518 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 02:11:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:11:34,528 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:11:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:11:34,529 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 02:11:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:11:34,534 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:11:34,534 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:11:34,536 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 02:11:34,539 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 02:11:34,539 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 02:11:34,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:11:34,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:11:34,561 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 02:11:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:11:34,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:11:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:11:34,563 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:11:34,564 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 02:11:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:11:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:34,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:34,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:34,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:11:34,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:34,566 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:11:34,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:11:34,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42097211] [2022-07-12 02:11:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:11:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:34,589 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:11:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:11:34,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:11:34,619 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:11:34,620 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:11:34,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:11:34,624 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 02:11:34,628 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:11:34,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:11:34 BoogieIcfgContainer [2022-07-12 02:11:34,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:11:34,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:11:34,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:11:34,648 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:11:34,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:34" (3/4) ... [2022-07-12 02:11:34,650 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:11:34,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:11:34,651 INFO L158 Benchmark]: Toolchain (without parser) took 801.62ms. Allocated memory is still 96.5MB. Free memory was 57.3MB in the beginning and 36.4MB in the end (delta: 20.9MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-07-12 02:11:34,652 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:34,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 71.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:11:34,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:34,655 INFO L158 Benchmark]: Boogie Preprocessor took 33.41ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 69.0MB in the end (delta: 852.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:34,657 INFO L158 Benchmark]: RCFGBuilder took 169.79ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 60.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:11:34,657 INFO L158 Benchmark]: TraceAbstraction took 331.54ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 36.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-12 02:11:34,657 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 96.5MB. Free memory was 36.7MB in the beginning and 36.4MB in the end (delta: 298.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:11:34,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 71.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.41ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 69.0MB in the end (delta: 852.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 169.79ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 60.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 331.54ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 36.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 96.5MB. Free memory was 36.7MB in the beginning and 36.4MB in the end (delta: 298.7kB). 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 > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [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: 0.0s, 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, 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 02:11:34,703 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_3.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 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:11:36,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:11:36,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:11:36,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:11:36,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:11:36,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:11:36,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:11:36,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:11:36,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:11:36,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:11:36,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:11:36,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:11:36,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:11:36,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:11:36,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:11:36,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:11:36,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:11:36,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:11:36,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:11:36,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:11:36,366 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:11:36,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:11:36,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:11:36,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:11:36,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:11:36,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:11:36,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:11:36,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:11:36,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:11:36,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:11:36,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:11:36,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:11:36,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:11:36,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:11:36,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:11:36,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:11:36,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:11:36,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:11:36,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:11:36,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:11:36,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:11:36,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:11:36,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:11:36,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:11:36,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:11:36,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:11:36,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:11:36,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:11:36,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:11:36,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:11:36,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:11:36,411 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:11:36,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:11:36,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:11:36,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:11:36,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:11:36,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:11:36,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:11:36,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:11:36,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:11:36,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:11:36,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:11:36,414 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:11:36,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:11:36,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:11:36,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:11:36,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:11:36,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:11:36,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:11:36,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:36,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:11:36,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:11:36,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:11:36,417 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:11:36,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:11:36,417 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:11:36,417 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:11:36,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:11:36,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:11:36,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2022-07-12 02:11:36,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:11:36,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:11:36,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:11:36,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:11:36,681 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:11:36,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-12 02:11:36,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603adab96/6f8e4c99d7ba4e11aa709b6b484a7a00/FLAG41a3e5652 [2022-07-12 02:11:37,139 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:11:37,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-12 02:11:37,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603adab96/6f8e4c99d7ba4e11aa709b6b484a7a00/FLAG41a3e5652 [2022-07-12 02:11:37,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/603adab96/6f8e4c99d7ba4e11aa709b6b484a7a00 [2022-07-12 02:11:37,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:11:37,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:11:37,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:37,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:11:37,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:11:37,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b08f4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37, skipping insertion in model container [2022-07-12 02:11:37,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:11:37,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:11:37,320 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_3.i[1722,1735] [2022-07-12 02:11:37,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:37,339 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:11:37,377 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_3.i[1722,1735] [2022-07-12 02:11:37,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:11:37,391 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:11:37,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37 WrapperNode [2022-07-12 02:11:37,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:11:37,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:37,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:11:37,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:11:37,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,426 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-12 02:11:37,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:11:37,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:11:37,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:11:37,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:11:37,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:11:37,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:11:37,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:11:37,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:11:37,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (1/1) ... [2022-07-12 02:11:37,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:11:37,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:11:37,505 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 02:11:37,573 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 02:11:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:11:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:11:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:11:37,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:11:37,637 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:11:37,638 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:11:42,634 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:11:42,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:11:42,637 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:11:42,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:42 BoogieIcfgContainer [2022-07-12 02:11:42,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:11:42,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:11:42,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:11:42,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:11:42,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:11:37" (1/3) ... [2022-07-12 02:11:42,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb4521b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:42, skipping insertion in model container [2022-07-12 02:11:42,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:11:37" (2/3) ... [2022-07-12 02:11:42,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb4521b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:11:42, skipping insertion in model container [2022-07-12 02:11:42,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:11:42" (3/3) ... [2022-07-12 02:11:42,645 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2022-07-12 02:11:42,655 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:11:42,655 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:11:42,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:11:42,690 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@3012b62b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e7d262f [2022-07-12 02:11:42,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:11:42,693 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 02:11:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:42,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:42,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:42,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:42,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:42,700 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-12 02:11:42,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:11:42,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162418801] [2022-07-12 02:11:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:11:42,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:11:42,710 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 02:11:42,712 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 02:11:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:11:43,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:11:43,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:11:43,652 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 02:11:43,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:11:43,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:11:43,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162418801] [2022-07-12 02:11:43,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162418801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:11:43,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:11:43,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:11:43,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468729052] [2022-07-12 02:11:43,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:11:43,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:11:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:11:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:11:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:11:43,674 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 02:11:43,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:11:43,683 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-12 02:11:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:11:43,684 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 02:11:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:11:43,689 INFO L225 Difference]: With dead ends: 23 [2022-07-12 02:11:43,689 INFO L226 Difference]: Without dead ends: 9 [2022-07-12 02:11:43,692 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 02:11:43,694 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 02:11:43,695 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 02:11:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-12 02:11:43,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-12 02:11:43,713 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 02:11:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-12 02:11:43,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-12 02:11:43,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:11:43,714 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-12 02:11:43,715 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 02:11:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-12 02:11:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 02:11:43,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:11:43,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:11:43,745 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 02:11:43,931 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 02:11:43,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:11:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:11:43,933 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-12 02:11:43,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:11:43,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210914963] [2022-07-12 02:11:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:11:43,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:11:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:11:43,934 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 02:11:43,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process