./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/recursive/Addition02.c -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 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 04:18:54,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 04:18:54,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 04:18:54,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 04:18:54,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 04:18:54,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 04:18:54,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 04:18:54,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 04:18:54,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 04:18:54,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 04:18:54,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 04:18:54,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 04:18:54,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 04:18:54,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 04:18:54,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 04:18:54,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 04:18:54,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 04:18:54,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 04:18:54,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 04:18:54,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 04:18:54,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 04:18:54,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 04:18:54,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 04:18:54,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 04:18:54,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 04:18:54,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 04:18:54,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 04:18:54,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 04:18:54,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 04:18:54,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 04:18:54,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 04:18:54,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 04:18:54,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 04:18:54,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 04:18:54,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 04:18:54,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 04:18:54,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 04:18:54,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 04:18:54,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 04:18:54,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 04:18:54,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 04:18:54,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 04:18:54,266 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 04:18:54,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 04:18:54,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 04:18:54,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 04:18:54,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 04:18:54,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 04:18:54,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 04:18:54,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 04:18:54,268 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 04:18:54,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 04:18:54,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 04:18:54,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 04:18:54,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 04:18:54,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 04:18:54,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 04:18:54,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 04:18:54,272 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 04:18:54,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 04:18:54,272 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 04:18:54,272 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2023-02-18 04:18:54,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 04:18:54,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 04:18:54,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 04:18:54,455 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 04:18:54,455 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 04:18:54,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02.c [2023-02-18 04:18:55,446 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 04:18:55,715 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 04:18:55,715 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c [2023-02-18 04:18:55,722 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a56d6c16/0bcb760fae4d457a9bb36953e4b7ec1d/FLAGde6a165eb [2023-02-18 04:18:55,736 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a56d6c16/0bcb760fae4d457a9bb36953e4b7ec1d [2023-02-18 04:18:55,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 04:18:55,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 04:18:55,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 04:18:55,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 04:18:55,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 04:18:55,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9609d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55, skipping insertion in model container [2023-02-18 04:18:55,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 04:18:55,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 04:18:55,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2023-02-18 04:18:55,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 04:18:55,870 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 04:18:55,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2023-02-18 04:18:55,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 04:18:55,887 INFO L208 MainTranslator]: Completed translation [2023-02-18 04:18:55,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55 WrapperNode [2023-02-18 04:18:55,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 04:18:55,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 04:18:55,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 04:18:55,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 04:18:55,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,906 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-02-18 04:18:55,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 04:18:55,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 04:18:55,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 04:18:55,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 04:18:55,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 04:18:55,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 04:18:55,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 04:18:55,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 04:18:55,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (1/1) ... [2023-02-18 04:18:55,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 04:18:55,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 04:18:55,939 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) [2023-02-18 04:18:55,949 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 [2023-02-18 04:18:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 04:18:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 04:18:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 04:18:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 04:18:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-02-18 04:18:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-02-18 04:18:56,023 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 04:18:56,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 04:18:56,151 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 04:18:56,157 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 04:18:56,160 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 04:18:56,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:18:56 BoogieIcfgContainer [2023-02-18 04:18:56,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 04:18:56,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 04:18:56,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 04:18:56,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 04:18:56,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 04:18:55" (1/3) ... [2023-02-18 04:18:56,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1bcdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:18:56, skipping insertion in model container [2023-02-18 04:18:56,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 04:18:55" (2/3) ... [2023-02-18 04:18:56,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1bcdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:18:56, skipping insertion in model container [2023-02-18 04:18:56,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:18:56" (3/3) ... [2023-02-18 04:18:56,170 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition02.c [2023-02-18 04:18:56,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 04:18:56,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 04:18:56,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 04:18:56,231 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ac487fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 04:18:56,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 04:18:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-18 04:18:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 04:18:56,241 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 04:18:56,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 04:18:56,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 04:18:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 04:18:56,246 INFO L85 PathProgramCache]: Analyzing trace with hash 663264039, now seen corresponding path program 1 times [2023-02-18 04:18:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 04:18:56,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899092563] [2023-02-18 04:18:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 04:18:56,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 04:18:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 04:18:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 04:18:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 04:18:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 04:18:56,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 04:18:56,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899092563] [2023-02-18 04:18:56,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899092563] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 04:18:56,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 04:18:56,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 04:18:56,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509462739] [2023-02-18 04:18:56,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 04:18:56,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 04:18:56,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 04:18:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 04:18:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 04:18:56,613 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 04:18:56,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 04:18:56,695 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-18 04:18:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 04:18:56,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-18 04:18:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 04:18:56,710 INFO L225 Difference]: With dead ends: 34 [2023-02-18 04:18:56,710 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 04:18:56,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-18 04:18:56,714 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 04:18:56,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 62 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 04:18:56,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 04:18:56,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-18 04:18:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 04:18:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2023-02-18 04:18:56,741 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2023-02-18 04:18:56,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 04:18:56,742 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2023-02-18 04:18:56,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 04:18:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-02-18 04:18:56,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 04:18:56,743 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 04:18:56,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 04:18:56,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 04:18:56,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 04:18:56,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 04:18:56,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1508496640, now seen corresponding path program 1 times [2023-02-18 04:18:56,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 04:18:56,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800957221] [2023-02-18 04:18:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 04:18:56,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 04:18:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 04:18:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 04:18:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 04:18:56,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 04:18:56,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 04:18:56,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800957221] [2023-02-18 04:18:56,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800957221] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 04:18:56,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 04:18:56,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 04:18:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244569534] [2023-02-18 04:18:56,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 04:18:56,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 04:18:56,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 04:18:56,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 04:18:56,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-18 04:18:56,851 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 04:18:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 04:18:56,889 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2023-02-18 04:18:56,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 04:18:56,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-02-18 04:18:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 04:18:56,890 INFO L225 Difference]: With dead ends: 32 [2023-02-18 04:18:56,890 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 04:18:56,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-18 04:18:56,891 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 04:18:56,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 04:18:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 04:18:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-18 04:18:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 04:18:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-18 04:18:56,895 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2023-02-18 04:18:56,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 04:18:56,896 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-18 04:18:56,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 04:18:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-18 04:18:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 04:18:56,897 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 04:18:56,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 04:18:56,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 04:18:56,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 04:18:56,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 04:18:56,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1330690599, now seen corresponding path program 1 times [2023-02-18 04:18:56,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 04:18:56,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581907482] [2023-02-18 04:18:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 04:18:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 04:18:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 04:18:56,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 04:18:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 04:18:56,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 04:18:56,939 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 04:18:56,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 04:18:56,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 04:18:56,943 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-18 04:18:56,946 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 04:18:56,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 04:18:56 BoogieIcfgContainer [2023-02-18 04:18:56,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 04:18:56,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 04:18:56,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 04:18:56,959 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 04:18:56,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:18:56" (3/4) ... [2023-02-18 04:18:56,961 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-18 04:18:56,983 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 04:18:56,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 04:18:56,983 INFO L158 Benchmark]: Toolchain (without parser) took 1242.43ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 87.4MB in the end (delta: 25.4MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2023-02-18 04:18:56,984 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 04:18:56,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.71ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 102.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 04:18:56,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.67ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 04:18:56,984 INFO L158 Benchmark]: Boogie Preprocessor took 10.57ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 100.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 04:18:56,985 INFO L158 Benchmark]: RCFGBuilder took 245.00ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 90.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 04:18:56,985 INFO L158 Benchmark]: TraceAbstraction took 794.88ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 824.7kB). Peak memory consumption was 468.5kB. Max. memory is 16.1GB. [2023-02-18 04:18:56,985 INFO L158 Benchmark]: Witness Printer took 23.75ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 04:18:56,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.71ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 102.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.67ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.57ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 100.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.00ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 90.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 794.88ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 824.7kB). Peak memory consumption was 468.5kB. Max. memory is 16.1GB. * Witness Printer took 23.75ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) VAL [m=0, n=1] [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) VAL [addition(m,n)=1, m=0, n=1] [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) VAL [m=0, n=1, result=1] [L45] reach_error() VAL [m=0, n=1, result=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 35 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2023-02-18 04:18:57,017 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