./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_6.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 ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:21:06,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:21:06,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:21:06,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:21:06,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:21:06,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:21:06,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:21:06,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:21:06,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:21:06,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:21:06,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:21:06,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:21:06,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:21:06,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:21:06,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:21:06,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:21:06,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:21:06,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:21:06,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:21:06,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:21:06,842 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:21:06,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:21:06,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:21:06,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:21:06,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:21:06,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:21:06,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:21:06,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:21:06,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:21:06,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:21:06,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:21:06,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:21:06,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:21:06,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:21:06,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:21:06,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:21:06,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:21:06,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:21:06,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:21:06,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:21:06,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:21:06,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:21:06,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:21:06,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:21:06,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:21:06,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:21:06,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:21:06,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:21:06,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:21:06,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:21:06,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:21:06,882 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:21:06,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:21:06,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:21:06,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:21:06,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:21:06,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:21:06,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:21:06,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:21:06,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:21:06,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:21:06,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:21:06,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:21:06,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:21:06,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:21:06,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-19 13:21:07,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:21:07,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:21:07,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:21:07,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:21:07,095 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:21:07,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-19 13:21:07,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e78205b/fc30037025ea4e0bbc9db0cc7fefd7c3/FLAG0382cbbe2 [2022-07-19 13:21:07,463 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:21:07,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-19 13:21:07,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e78205b/fc30037025ea4e0bbc9db0cc7fefd7c3/FLAG0382cbbe2 [2022-07-19 13:21:07,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e78205b/fc30037025ea4e0bbc9db0cc7fefd7c3 [2022-07-19 13:21:07,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:21:07,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:21:07,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:21:07,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:21:07,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:21:07,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:21:07" (1/1) ... [2022-07-19 13:21:07,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db30e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:07, skipping insertion in model container [2022-07-19 13:21:07,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:21:07" (1/1) ... [2022-07-19 13:21:07,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:21:07,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:21:08,085 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_6.i[1722,1735] [2022-07-19 13:21:08,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:21:08,093 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:21:08,104 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_6.i[1722,1735] [2022-07-19 13:21:08,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:21:08,115 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:21:08,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08 WrapperNode [2022-07-19 13:21:08,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:21:08,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:21:08,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:21:08,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:21:08,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,143 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-19 13:21:08,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:21:08,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:21:08,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:21:08,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:21:08,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:21:08,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:21:08,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:21:08,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:21:08,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (1/1) ... [2022-07-19 13:21:08,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:21:08,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:21:08,216 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) [2022-07-19 13:21:08,224 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 [2022-07-19 13:21:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:21:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:21:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:21:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:21:08,303 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:21:08,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:21:08,394 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:21:08,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:21:08,399 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:21:08,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:08 BoogieIcfgContainer [2022-07-19 13:21:08,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:21:08,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:21:08,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:21:08,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:21:08,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:21:07" (1/3) ... [2022-07-19 13:21:08,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d37372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:08, skipping insertion in model container [2022-07-19 13:21:08,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:08" (2/3) ... [2022-07-19 13:21:08,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d37372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:08, skipping insertion in model container [2022-07-19 13:21:08,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:08" (3/3) ... [2022-07-19 13:21:08,406 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-19 13:21:08,416 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:21:08,416 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:21:08,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:21:08,466 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@68f84bf2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@425e0401 [2022-07-19 13:21:08,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:21:08,470 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) [2022-07-19 13:21:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:08,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:08,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:08,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:08,487 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-19 13:21:08,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:21:08,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042703410] [2022-07-19 13:21:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:21:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:21:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:21:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:21:08,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042703410] [2022-07-19 13:21:08,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042703410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:21:08,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:21:08,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:21:08,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154426367] [2022-07-19 13:21:08,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:21:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:21:08,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:21:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:21:08,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:21:08,625 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) [2022-07-19 13:21:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:21:08,636 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-19 13:21:08,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:21:08,638 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 [2022-07-19 13:21:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:21:08,645 INFO L225 Difference]: With dead ends: 23 [2022-07-19 13:21:08,645 INFO L226 Difference]: Without dead ends: 9 [2022-07-19 13:21:08,648 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 [2022-07-19 13:21:08,651 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 [2022-07-19 13:21:08,652 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] [2022-07-19 13:21:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-19 13:21:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-19 13:21:08,671 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) [2022-07-19 13:21:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-19 13:21:08,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-19 13:21:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:21:08,673 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-19 13:21:08,673 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) [2022-07-19 13:21:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-19 13:21:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:08,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:08,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:08,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:21:08,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-19 13:21:08,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:21:08,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860414296] [2022-07-19 13:21:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:21:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:21:08,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:21:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:21:08,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:21:08,714 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:21:08,716 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:21:08,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:21:08,721 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:21:08,726 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:21:08,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:21:08 BoogieIcfgContainer [2022-07-19 13:21:08,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:21:08,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:21:08,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:21:08,752 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:21:08,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:08" (3/4) ... [2022-07-19 13:21:08,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:21:08,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:21:08,756 INFO L158 Benchmark]: Toolchain (without parser) took 844.82ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 58.1MB in the end (delta: 26.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,756 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:21:08,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.35ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 93.1MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.11ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 91.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,760 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 90.2MB in the end (delta: 771.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,762 INFO L158 Benchmark]: RCFGBuilder took 223.45ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 81.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,762 INFO L158 Benchmark]: TraceAbstraction took 349.16ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 58.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-19 13:21:08,763 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 58.1MB in the end (delta: 656.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:21:08,767 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 77.6MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.35ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 93.1MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.11ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 91.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 90.2MB in the end (delta: 771.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.45ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 81.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 349.16ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 58.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 58.1MB in the end (delta: 656.5kB). 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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 [2022-07-19 13:21:08,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- 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_6.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 ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:21:10,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:21:10,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:21:10,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:21:10,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:21:10,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:21:10,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:21:10,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:21:10,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:21:10,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:21:10,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:21:10,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:21:10,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:21:10,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:21:10,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:21:10,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:21:10,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:21:10,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:21:10,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:21:10,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:21:10,756 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:21:10,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:21:10,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:21:10,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:21:10,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:21:10,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:21:10,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:21:10,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:21:10,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:21:10,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:21:10,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:21:10,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:21:10,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:21:10,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:21:10,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:21:10,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:21:10,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:21:10,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:21:10,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:21:10,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:21:10,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:21:10,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:21:10,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:21:10,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:21:10,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:21:10,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:21:10,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:21:10,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:21:10,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:21:10,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:21:10,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:21:10,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:21:10,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:21:10,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:21:10,825 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:21:10,825 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:21:10,825 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:21:10,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:21:10,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:21:10,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:21:10,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:21:10,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:21:10,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:21:10,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:21:10,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:21:10,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:21:10,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:21:10,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-19 13:21:11,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:21:11,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:21:11,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:21:11,153 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:21:11,153 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:21:11,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-19 13:21:11,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f457be47/cf514327df6840f39b8d27e01ea1749e/FLAG45e0d5c58 [2022-07-19 13:21:11,573 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:21:11,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-19 13:21:11,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f457be47/cf514327df6840f39b8d27e01ea1749e/FLAG45e0d5c58 [2022-07-19 13:21:11,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f457be47/cf514327df6840f39b8d27e01ea1749e [2022-07-19 13:21:11,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:21:11,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:21:11,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:21:11,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:21:11,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:21:11,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e29856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11, skipping insertion in model container [2022-07-19 13:21:11,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:21:11,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:21:11,760 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_6.i[1722,1735] [2022-07-19 13:21:11,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:21:11,774 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:21:11,804 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_6.i[1722,1735] [2022-07-19 13:21:11,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:21:11,819 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:21:11,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11 WrapperNode [2022-07-19 13:21:11,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:21:11,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:21:11,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:21:11,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:21:11,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,860 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-19 13:21:11,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:21:11,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:21:11,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:21:11,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:21:11,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:21:11,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:21:11,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:21:11,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:21:11,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (1/1) ... [2022-07-19 13:21:11,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:21:11,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:21:11,943 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) [2022-07-19 13:21:11,964 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 [2022-07-19 13:21:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:21:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:21:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:21:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:21:12,074 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:21:12,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:21:18,827 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:21:18,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:21:18,831 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:21:18,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:18 BoogieIcfgContainer [2022-07-19 13:21:18,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:21:18,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:21:18,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:21:18,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:21:18,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:21:11" (1/3) ... [2022-07-19 13:21:18,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4878e120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:18, skipping insertion in model container [2022-07-19 13:21:18,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:21:11" (2/3) ... [2022-07-19 13:21:18,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4878e120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:21:18, skipping insertion in model container [2022-07-19 13:21:18,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:18" (3/3) ... [2022-07-19 13:21:18,847 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-19 13:21:18,857 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:21:18,857 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:21:18,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:21:18,943 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@58f20863, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48ea8e3f [2022-07-19 13:21:18,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:21:18,947 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) [2022-07-19 13:21:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:18,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:18,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:18,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-19 13:21:19,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:21:19,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666886264] [2022-07-19 13:21:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:19,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:21:19,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:21:19,029 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) [2022-07-19 13:21:19,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:21:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:21:20,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:21:20,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:21:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:21:20,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:21:20,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:21:20,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666886264] [2022-07-19 13:21:20,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666886264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:21:20,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:21:20,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:21:20,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167609657] [2022-07-19 13:21:20,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:21:20,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:21:20,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:21:20,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:21:20,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:21:20,100 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) [2022-07-19 13:21:20,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:21:20,125 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-19 13:21:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:21:20,127 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 [2022-07-19 13:21:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:21:20,138 INFO L225 Difference]: With dead ends: 23 [2022-07-19 13:21:20,138 INFO L226 Difference]: Without dead ends: 9 [2022-07-19 13:21:20,143 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 [2022-07-19 13:21:20,151 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 [2022-07-19 13:21:20,152 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] [2022-07-19 13:21:20,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-19 13:21:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-19 13:21:20,178 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) [2022-07-19 13:21:20,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-19 13:21:20,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-19 13:21:20,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:21:20,180 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-19 13:21:20,181 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) [2022-07-19 13:21:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-19 13:21:20,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 13:21:20,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:21:20,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:21:20,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:21:20,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:21:20,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:21:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:21:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-19 13:21:20,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:21:20,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222733030] [2022-07-19 13:21:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:21:20,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:21:20,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:21:20,425 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) [2022-07-19 13:21:20,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:21:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:21:30,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:21:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:22:00,023 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 13:22:00,023 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:22:00,024 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:22:00,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 13:22:00,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:22:00,229 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:22:00,231 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:22:00,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:22:00 BoogieIcfgContainer [2022-07-19 13:22:00,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:22:00,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:22:00,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:22:00,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:22:00,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:21:18" (3/4) ... [2022-07-19 13:22:00,248 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 13:22:00,268 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:22:00,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:22:00,269 INFO L158 Benchmark]: Toolchain (without parser) took 48671.35ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 43.0MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:22:00,270 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:22:00,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.90ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.4MB in the beginning and 48.1MB in the end (delta: -18.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-19 13:22:00,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.41ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:22:00,271 INFO L158 Benchmark]: Boogie Preprocessor took 42.49ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 45.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:22:00,271 INFO L158 Benchmark]: RCFGBuilder took 6928.26ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 36.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:22:00,272 INFO L158 Benchmark]: TraceAbstraction took 41412.55ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 44.9MB in the end (delta: -9.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-19 13:22:00,272 INFO L158 Benchmark]: Witness Printer took 22.65ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 43.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:22:00,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.90ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 29.4MB in the beginning and 48.1MB in the end (delta: -18.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.41ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.49ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 45.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6928.26ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 36.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 41412.55ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 44.9MB in the end (delta: -9.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 22.65ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 43.0MB in the end (delta: 1.8MB). 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 > -1.2f && IN < 1.2f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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)=-1.1990375518798828, \result=-0.9330898523330688, x=-1.1990375518798828] [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)=-1.1990375518798828, \result=0.37140488624572754, x=-1.1990375518798828] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-1.1990375518798828, x=1.3132877349853516] [L51] reach_error() VAL [IN=-1.1990375518798828, x=1.3132877349853516] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.3s, 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, 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, 11.4s 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! [2022-07-19 13:22:00,398 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