./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:54:15,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:54:15,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:54:15,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:54:15,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:54:15,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:54:15,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:54:15,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:54:15,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:54:15,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:54:15,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:54:15,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:54:15,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:54:15,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:54:15,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:54:15,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:54:15,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:54:15,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:54:15,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:54:15,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:54:15,430 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:54:15,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:54:15,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:54:15,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:54:15,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:54:15,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:54:15,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:54:15,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:54:15,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:54:15,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:54:15,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:54:15,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:54:15,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:54:15,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:54:15,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:54:15,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:54:15,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:54:15,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:54:15,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:54:15,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:54:15,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:54:15,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:54:15,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 13:54:15,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:54:15,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:54:15,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:54:15,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:54:15,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:54:15,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:54:15,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:54:15,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:54:15,481 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:54:15,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:54:15,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:54:15,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 13:54:15,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:54:15,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:54:15,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:54:15,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:54:15,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:54:15,483 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:54:15,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:54:15,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:54:15,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:54:15,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:54:15,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:54:15,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:54:15,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:15,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:54:15,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:54:15,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:54:15,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 13:54:15,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 13:54:15,486 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:54:15,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:54:15,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:54:15,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2022-07-13 13:54:15,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:54:15,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:54:15,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:54:15,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:54:15,757 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:54:15,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-13 13:54:15,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256294a7b/da984d6a09154382ad4871701cb6a172/FLAG6d0d56d53 [2022-07-13 13:54:16,145 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:54:16,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-13 13:54:16,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256294a7b/da984d6a09154382ad4871701cb6a172/FLAG6d0d56d53 [2022-07-13 13:54:16,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256294a7b/da984d6a09154382ad4871701cb6a172 [2022-07-13 13:54:16,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:54:16,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:54:16,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:16,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:54:16,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:54:16,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c543f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16, skipping insertion in model container [2022-07-13 13:54:16,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:54:16,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:54:16,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i[1722,1735] [2022-07-13 13:54:16,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:16,737 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:54:16,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i[1722,1735] [2022-07-13 13:54:16,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:16,763 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:54:16,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16 WrapperNode [2022-07-13 13:54:16,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:16,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:16,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:54:16,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:54:16,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,793 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-07-13 13:54:16,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:16,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:54:16,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:54:16,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:54:16,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:54:16,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:54:16,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:54:16,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:54:16,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (1/1) ... [2022-07-13 13:54:16,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:16,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:54:16,857 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) [2022-07-13 13:54:16,871 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 [2022-07-13 13:54:16,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:54:16,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 13:54:16,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:54:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:54:16,950 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:54:16,951 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:54:17,019 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:54:17,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:54:17,024 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:54:17,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:17 BoogieIcfgContainer [2022-07-13 13:54:17,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:54:17,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:54:17,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:54:17,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:54:17,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:54:16" (1/3) ... [2022-07-13 13:54:17,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:17, skipping insertion in model container [2022-07-13 13:54:17,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:16" (2/3) ... [2022-07-13 13:54:17,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:17, skipping insertion in model container [2022-07-13 13:54:17,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:17" (3/3) ... [2022-07-13 13:54:17,037 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2022-07-13 13:54:17,058 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:54:17,058 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:54:17,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:54:17,099 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@17cf6540, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f6db1f7 [2022-07-13 13:54:17,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:54:17,102 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) [2022-07-13 13:54:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:17,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:17,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:17,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:17,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:17,112 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:54:17,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:54:17,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90456144] [2022-07-13 13:54:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:17,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:54:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:54:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:54:17,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:54:17,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90456144] [2022-07-13 13:54:17,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90456144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:54:17,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:54:17,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:54:17,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133021395] [2022-07-13 13:54:17,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:54:17,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:54:17,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:54:17,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:54:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:54:17,300 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) [2022-07-13 13:54:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:54:17,312 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:54:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:54:17,314 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 [2022-07-13 13:54:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:54:17,321 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:54:17,321 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:54:17,324 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 [2022-07-13 13:54:17,328 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 [2022-07-13 13:54:17,329 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] [2022-07-13 13:54:17,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:54:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:54:17,356 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) [2022-07-13 13:54:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:54:17,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:54:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:54:17,358 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:54:17,359 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) [2022-07-13 13:54:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:54:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:17,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:17,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:17,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 13:54:17,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:17,362 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:54:17,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:54:17,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381590824] [2022-07-13 13:54:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:17,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:54:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:54:17,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 13:54:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 13:54:17,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 13:54:17,409 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 13:54:17,411 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:54:17,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 13:54:17,415 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 13:54:17,418 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:54:17,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:54:17 BoogieIcfgContainer [2022-07-13 13:54:17,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:54:17,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:54:17,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:54:17,437 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:54:17,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:17" (3/4) ... [2022-07-13 13:54:17,457 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 13:54:17,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:54:17,473 INFO L158 Benchmark]: Toolchain (without parser) took 907.46ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 67.8MB in the beginning and 117.8MB in the end (delta: -50.0MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,474 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:17,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.25ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 67.6MB in the beginning and 116.6MB in the end (delta: -49.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.10ms. Allocated memory is still 140.5MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,490 INFO L158 Benchmark]: Boogie Preprocessor took 24.77ms. Allocated memory is still 140.5MB. Free memory was 114.9MB in the beginning and 114.1MB in the end (delta: 780.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:54:17,490 INFO L158 Benchmark]: RCFGBuilder took 205.53ms. Allocated memory is still 140.5MB. Free memory was 114.1MB in the beginning and 105.3MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,490 INFO L158 Benchmark]: TraceAbstraction took 408.58ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 82.7MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,491 INFO L158 Benchmark]: Witness Printer took 35.04ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 117.8MB in the end (delta: -35.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 13:54:17,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.25ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 67.6MB in the beginning and 116.6MB in the end (delta: -49.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.10ms. Allocated memory is still 140.5MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.77ms. Allocated memory is still 140.5MB. Free memory was 114.9MB in the beginning and 114.1MB in the end (delta: 780.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.53ms. Allocated memory is still 140.5MB. Free memory was 114.1MB in the beginning and 105.3MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 408.58ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 82.7MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 35.04ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 117.8MB in the end (delta: -35.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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 [2022-07-13 13:54:17,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:54:19,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:54:19,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:54:19,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:54:19,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:54:19,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:54:19,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:54:19,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:54:19,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:54:19,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:54:19,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:54:19,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:54:19,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:54:19,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:54:19,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:54:19,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:54:19,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:54:19,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:54:19,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:54:19,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:54:19,503 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:54:19,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:54:19,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:54:19,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:54:19,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:54:19,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:54:19,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:54:19,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:54:19,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:54:19,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:54:19,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:54:19,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:54:19,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:54:19,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:54:19,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:54:19,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:54:19,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:54:19,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:54:19,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:54:19,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:54:19,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:54:19,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:54:19,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 13:54:19,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:54:19,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:54:19,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:54:19,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:54:19,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:54:19,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:54:19,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:54:19,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:54:19,562 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:54:19,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:54:19,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:54:19,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:54:19,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:54:19,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:54:19,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:54:19,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:54:19,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:54:19,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:54:19,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:54:19,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:54:19,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:54:19,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:19,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:54:19,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:54:19,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:54:19,567 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 13:54:19,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 13:54:19,567 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:54:19,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:54:19,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:54:19,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 13:54:19,568 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fa7b1fc8948e323dc46aa278c02b07d6da75b1e07ffd01b89efc9a86bb90ce [2022-07-13 13:54:19,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:54:19,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:54:19,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:54:19,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:54:19,925 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:54:19,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-13 13:54:19,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155b9fb2f/26d640dade0e480dadef004ef1f33e46/FLAG5e47a7835 [2022-07-13 13:54:20,408 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:54:20,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i [2022-07-13 13:54:20,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155b9fb2f/26d640dade0e480dadef004ef1f33e46/FLAG5e47a7835 [2022-07-13 13:54:20,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155b9fb2f/26d640dade0e480dadef004ef1f33e46 [2022-07-13 13:54:20,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:54:20,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:54:20,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:20,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:54:20,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:54:20,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e1b09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20, skipping insertion in model container [2022-07-13 13:54:20,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:54:20,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:54:20,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i[1722,1735] [2022-07-13 13:54:20,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:20,659 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:54:20,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_3.i[1722,1735] [2022-07-13 13:54:20,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:54:20,721 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:54:20,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20 WrapperNode [2022-07-13 13:54:20,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:54:20,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:20,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:54:20,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:54:20,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,764 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-07-13 13:54:20,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:54:20,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:54:20,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:54:20,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:54:20,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:54:20,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:54:20,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:54:20,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:54:20,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (1/1) ... [2022-07-13 13:54:20,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:54:20,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:54:20,820 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) [2022-07-13 13:54:20,847 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 [2022-07-13 13:54:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:54:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 13:54:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:54:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:54:20,925 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:54:20,926 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:54:27,666 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:54:27,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:54:27,670 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 13:54:27,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:27 BoogieIcfgContainer [2022-07-13 13:54:27,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:54:27,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:54:27,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:54:27,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:54:27,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:54:20" (1/3) ... [2022-07-13 13:54:27,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535f3348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:27, skipping insertion in model container [2022-07-13 13:54:27,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:54:20" (2/3) ... [2022-07-13 13:54:27,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535f3348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:54:27, skipping insertion in model container [2022-07-13 13:54:27,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:54:27" (3/3) ... [2022-07-13 13:54:27,684 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_3.i [2022-07-13 13:54:27,696 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:54:27,697 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:54:27,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:54:27,755 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@7083f27a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a2a7a68 [2022-07-13 13:54:27,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:54:27,759 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) [2022-07-13 13:54:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:27,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:27,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:27,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:27,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2022-07-13 13:54:27,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:54:27,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967504363] [2022-07-13 13:54:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:27,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:54:27,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:54:27,800 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) [2022-07-13 13:54:27,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 13:54:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:54:28,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 13:54:28,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:54:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:54:28,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:54:28,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 13:54:28,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967504363] [2022-07-13 13:54:28,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967504363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:54:28,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:54:28,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:54:28,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775581607] [2022-07-13 13:54:28,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:54:28,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 13:54:28,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 13:54:28,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 13:54:28,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 13:54:28,704 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) [2022-07-13 13:54:28,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:54:28,715 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-07-13 13:54:28,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 13:54:28,717 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 [2022-07-13 13:54:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:54:28,723 INFO L225 Difference]: With dead ends: 23 [2022-07-13 13:54:28,724 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 13:54:28,726 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 [2022-07-13 13:54:28,730 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 [2022-07-13 13:54:28,732 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] [2022-07-13 13:54:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 13:54:28,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 13:54:28,756 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) [2022-07-13 13:54:28,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-13 13:54:28,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-13 13:54:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:54:28,758 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-13 13:54:28,758 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) [2022-07-13 13:54:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-13 13:54:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 13:54:28,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:54:28,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:54:28,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 13:54:28,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 13:54:28,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:54:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:54:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2022-07-13 13:54:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 13:54:28,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093583027] [2022-07-13 13:54:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:54:28,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 13:54:28,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 13:54:28,989 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) [2022-07-13 13:54:28,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process