./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 791161d1 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-?-791161d [2022-07-22 13:33:40,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:33:40,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:33:40,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:33:40,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:33:40,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:33:40,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:33:40,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:33:40,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:33:40,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:33:40,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:33:40,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:33:40,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:33:40,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:33:40,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:33:40,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:33:40,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:33:40,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:33:40,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:33:40,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:33:40,842 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:33:40,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:33:40,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:33:40,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:33:40,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:33:40,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:33:40,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:33:40,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:33:40,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:33:40,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:33:40,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:33:40,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:33:40,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:33:40,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:33:40,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:33:40,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:33:40,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:33:40,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:33:40,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:33:40,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:33:40,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:33:40,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:33:40,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:33:40,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:33:40,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:33:40,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:33:40,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:33:40,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:33:40,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:33:40,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:33:40,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:33:40,877 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:33:40,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:33:40,878 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:33:40,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:33:40,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:33:40,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:33:40,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:33:40,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:33:40,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:33:40,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:33:40,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:40,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:33:40,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:33:40,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:33:40,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-22 13:33:41,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:33:41,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:33:41,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:33:41,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:33:41,090 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:33:41,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-22 13:33:41,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997124020/9d87885ea8764e7aba44145f7fa9d173/FLAGb3002e031 [2022-07-22 13:33:41,482 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:33:41,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-22 13:33:41,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997124020/9d87885ea8764e7aba44145f7fa9d173/FLAGb3002e031 [2022-07-22 13:33:41,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997124020/9d87885ea8764e7aba44145f7fa9d173 [2022-07-22 13:33:41,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:33:41,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:33:41,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:41,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:33:41,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:33:41,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594cbdda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41, skipping insertion in model container [2022-07-22 13:33:41,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:33:41,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:33:41,631 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] [2022-07-22 13:33:41,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:41,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:33:41,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i[1722,1735] [2022-07-22 13:33:41,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:41,661 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:33:41,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41 WrapperNode [2022-07-22 13:33:41,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:41,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:41,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:33:41,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:33:41,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,683 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-22 13:33:41,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:41,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:33:41,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:33:41,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:33:41,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:33:41,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:33:41,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:33:41,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:33:41,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (1/1) ... [2022-07-22 13:33:41,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:41,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:33:41,724 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) [2022-07-22 13:33:41,725 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 [2022-07-22 13:33:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:33:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:33:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:33:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:33:41,788 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:33:41,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:33:41,845 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:33:41,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:33:41,849 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:33:41,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:41 BoogieIcfgContainer [2022-07-22 13:33:41,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:33:41,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:33:41,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:33:41,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:33:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:33:41" (1/3) ... [2022-07-22 13:33:41,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bc12c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:41, skipping insertion in model container [2022-07-22 13:33:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:41" (2/3) ... [2022-07-22 13:33:41,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bc12c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:41, skipping insertion in model container [2022-07-22 13:33:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:41" (3/3) ... [2022-07-22 13:33:41,867 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-22 13:33:41,876 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:33:41,877 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:33:41,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:33:41,910 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@4c6d7c4d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b6bc09d [2022-07-22 13:33:41,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:33:41,913 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) [2022-07-22 13:33:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:41,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:41,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:41,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:41,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:41,921 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-22 13:33:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:33:41,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482325280] [2022-07-22 13:33:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:41,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:33:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:33:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:33:42,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 13:33:42,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482325280] [2022-07-22 13:33:42,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482325280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:33:42,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:33:42,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:33:42,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301066202] [2022-07-22 13:33:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:33:42,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:33:42,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 13:33:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:33:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:42,029 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) [2022-07-22 13:33:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:33:42,038 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-22 13:33:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:33:42,040 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 [2022-07-22 13:33:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:33:42,046 INFO L225 Difference]: With dead ends: 23 [2022-07-22 13:33:42,046 INFO L226 Difference]: Without dead ends: 9 [2022-07-22 13:33:42,048 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 [2022-07-22 13:33:42,052 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 [2022-07-22 13:33:42,052 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] [2022-07-22 13:33:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-22 13:33:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-22 13:33:42,072 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) [2022-07-22 13:33:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-22 13:33:42,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-22 13:33:42,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:33:42,074 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-22 13:33:42,075 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) [2022-07-22 13:33:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-22 13:33:42,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:42,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:42,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:42,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:33:42,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:42,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:42,078 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-22 13:33:42,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:33:42,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008147899] [2022-07-22 13:33:42,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:42,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:33:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:33:42,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:33:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:33:42,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:33:42,133 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:33:42,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:33:42,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 13:33:42,138 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:33:42,140 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:33:42,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:33:42 BoogieIcfgContainer [2022-07-22 13:33:42,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:33:42,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:33:42,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:33:42,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:33:42,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:41" (3/4) ... [2022-07-22 13:33:42,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:33:42,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:33:42,163 INFO L158 Benchmark]: Toolchain (without parser) took 665.25ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 56.2MB in the beginning and 86.9MB in the end (delta: -30.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:42,164 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 90.2MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:42,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.16ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 66.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:33:42,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.02ms. Allocated memory is still 90.2MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:33:42,165 INFO L158 Benchmark]: Boogie Preprocessor took 11.35ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 64.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:33:42,165 INFO L158 Benchmark]: RCFGBuilder took 163.10ms. Allocated memory is still 90.2MB. Free memory was 64.1MB in the beginning and 55.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:33:42,166 INFO L158 Benchmark]: TraceAbstraction took 299.23ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 55.3MB in the beginning and 86.9MB in the end (delta: -31.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-07-22 13:33:42,166 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 111.1MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:33:42,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 90.2MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.16ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 66.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.02ms. Allocated memory is still 90.2MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.35ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 64.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 163.10ms. Allocated memory is still 90.2MB. Free memory was 64.1MB in the beginning and 55.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 299.23ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 55.3MB in the beginning and 86.9MB in the end (delta: -31.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 111.1MB. Free memory is still 86.9MB. 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: 0.2s, 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 [2022-07-22 13:33:42,199 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_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-?-791161d [2022-07-22 13:33:43,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:33:43,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:33:43,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:33:43,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:33:43,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:33:43,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:33:43,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:33:43,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:33:43,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:33:43,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:33:43,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:33:43,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:33:43,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:33:43,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:33:43,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:33:43,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:33:43,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:33:43,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:33:43,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:33:43,912 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:33:43,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:33:43,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:33:43,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:33:43,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:33:43,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:33:43,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:33:43,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:33:43,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:33:43,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:33:43,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:33:43,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:33:43,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:33:43,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:33:43,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:33:43,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:33:43,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:33:43,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:33:43,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:33:43,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:33:43,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:33:43,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:33:43,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:33:43,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:33:43,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:33:43,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:33:43,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:33:43,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:33:43,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:33:43,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:33:43,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:33:43,955 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:33:43,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:33:43,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:33:43,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:33:43,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:33:43,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:33:43,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:43,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:33:43,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:33:43,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:33:43,958 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:33:43,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:33:43,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:33:43,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:33:43,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:33:43,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:33:43,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec222c3996017a4c3d0b54e86b7104edba9dccbc593820967cf8b3cad697d0fa [2022-07-22 13:33:44,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:33:44,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:33:44,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:33:44,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:33:44,226 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:33:44,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-22 13:33:44,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8cc2936/4a1040bdcc8341acaed147ac43cf0f4c/FLAG7f1abf1c2 [2022-07-22 13:33:44,653 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:33:44,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2022-07-22 13:33:44,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8cc2936/4a1040bdcc8341acaed147ac43cf0f4c/FLAG7f1abf1c2 [2022-07-22 13:33:44,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8cc2936/4a1040bdcc8341acaed147ac43cf0f4c [2022-07-22 13:33:44,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:33:44,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:33:44,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:44,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:33:44,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:33:44,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110e7e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44, skipping insertion in model container [2022-07-22 13:33:44,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:33:44,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:33:44,797 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] [2022-07-22 13:33:44,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:44,810 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:33:44,849 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] [2022-07-22 13:33:44,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:33:44,859 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:33:44,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44 WrapperNode [2022-07-22 13:33:44,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:33:44,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:44,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:33:44,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:33:44,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,898 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-22 13:33:44,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:33:44,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:33:44,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:33:44,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:33:44,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:33:44,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:33:44,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:33:44,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:33:44,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (1/1) ... [2022-07-22 13:33:44,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:33:44,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:33:44,956 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) [2022-07-22 13:33:44,971 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 [2022-07-22 13:33:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:33:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:33:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:33:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:33:45,053 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:33:45,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:33:51,196 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:33:51,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:33:51,201 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:33:51,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:51 BoogieIcfgContainer [2022-07-22 13:33:51,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:33:51,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:33:51,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:33:51,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:33:51,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:33:44" (1/3) ... [2022-07-22 13:33:51,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713fefb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:51, skipping insertion in model container [2022-07-22 13:33:51,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:33:44" (2/3) ... [2022-07-22 13:33:51,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713fefb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:33:51, skipping insertion in model container [2022-07-22 13:33:51,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:51" (3/3) ... [2022-07-22 13:33:51,209 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2022-07-22 13:33:51,220 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:33:51,221 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:33:51,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:33:51,276 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@48ea8e3f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@79b2aa3d [2022-07-22 13:33:51,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:33:51,282 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) [2022-07-22 13:33:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:51,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:51,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:51,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-22 13:33:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:33:51,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172323193] [2022-07-22 13:33:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:51,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:33:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:33:51,304 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) [2022-07-22 13:33:51,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 13:33:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:33:52,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 13:33:52,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:33:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:33:52,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:33:52,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:33:52,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172323193] [2022-07-22 13:33:52,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172323193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:33:52,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:33:52,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:33:52,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264372506] [2022-07-22 13:33:52,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:33:52,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:33:52,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:33:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:33:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:33:52,245 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) [2022-07-22 13:33:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:33:52,254 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-22 13:33:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:33:52,256 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 [2022-07-22 13:33:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:33:52,261 INFO L225 Difference]: With dead ends: 23 [2022-07-22 13:33:52,262 INFO L226 Difference]: Without dead ends: 9 [2022-07-22 13:33:52,264 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 [2022-07-22 13:33:52,270 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 [2022-07-22 13:33:52,275 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] [2022-07-22 13:33:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-22 13:33:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-22 13:33:52,293 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) [2022-07-22 13:33:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-22 13:33:52,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-22 13:33:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:33:52,295 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-22 13:33:52,295 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) [2022-07-22 13:33:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-22 13:33:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 13:33:52,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:33:52,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:33:52,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 13:33:52,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:33:52,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:33:52,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:33:52,512 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-22 13:33:52,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:33:52,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451881249] [2022-07-22 13:33:52,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:33:52,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:33:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:33:52,514 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) [2022-07-22 13:33:52,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 13:34:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:34:01,665 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:34:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:34:26,937 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-22 13:34:26,938 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:34:26,939 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:34:26,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 13:34:27,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:34:27,143 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 13:34:27,146 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:34:27,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:34:27 BoogieIcfgContainer [2022-07-22 13:34:27,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:34:27,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:34:27,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:34:27,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:34:27,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:33:51" (3/4) ... [2022-07-22 13:34:27,168 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 13:34:27,204 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 13:34:27,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:34:27,204 INFO L158 Benchmark]: Toolchain (without parser) took 42531.40ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 41.7MB in the beginning and 35.7MB in the end (delta: 6.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-07-22 13:34:27,204 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:27,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.95ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 43.9MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 13:34:27,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.74ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:27,205 INFO L158 Benchmark]: Boogie Preprocessor took 35.44ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 41.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:34:27,205 INFO L158 Benchmark]: RCFGBuilder took 6267.17ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:34:27,206 INFO L158 Benchmark]: TraceAbstraction took 35961.64ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 37.5MB in the end (delta: -5.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-07-22 13:34:27,206 INFO L158 Benchmark]: Witness Printer took 37.84ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 35.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:34:27,207 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 60.8MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.95ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 43.9MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.74ms. Allocated memory is still 60.8MB. Free memory was 43.9MB in the beginning and 42.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.44ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 41.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6267.17ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 32.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 35961.64ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 37.5MB in the end (delta: -5.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 37.84ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 35.7MB in the end (delta: 1.8MB). 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 - 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: 35.9s, 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, 9.9s 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! [2022-07-22 13:34:27,332 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