./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-25 00:37:03,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 00:37:03,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-25 00:37:03,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 00:37:03,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 00:37:03,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 00:37:03,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 00:37:03,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 00:37:03,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-25 00:37:03,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-25 00:37:03,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 00:37:03,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 00:37:03,136 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 00:37:03,136 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-25 00:37:03,139 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-25 00:37:03,140 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-25 00:37:03,140 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-25 00:37:03,140 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-25 00:37:03,140 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-25 00:37:03,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 00:37:03,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-25 00:37:03,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 00:37:03,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 00:37:03,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 00:37:03,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 00:37:03,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-25 00:37:03,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-25 00:37:03,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-25 00:37:03,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 00:37:03,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-25 00:37:03,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 00:37:03,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 00:37:03,144 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-25 00:37:03,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 00:37:03,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 00:37:03,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 00:37:03,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 00:37:03,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 00:37:03,147 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-25 00:37:03,147 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc [2024-10-25 00:37:03,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 00:37:03,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 00:37:03,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 00:37:03,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 00:37:03,453 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 00:37:03,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2024-10-25 00:37:04,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 00:37:05,166 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 00:37:05,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2024-10-25 00:37:05,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4779f581/2a50298330ca4723a2babfea5b1613f5/FLAG14d259709 [2024-10-25 00:37:05,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4779f581/2a50298330ca4723a2babfea5b1613f5 [2024-10-25 00:37:05,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 00:37:05,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 00:37:05,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 00:37:05,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 00:37:05,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 00:37:05,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc7da91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05, skipping insertion in model container [2024-10-25 00:37:05,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 00:37:05,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:37:05,445 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 00:37:05,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:37:05,535 INFO L204 MainTranslator]: Completed translation [2024-10-25 00:37:05,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05 WrapperNode [2024-10-25 00:37:05,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 00:37:05,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 00:37:05,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 00:37:05,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 00:37:05,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,611 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2024-10-25 00:37:05,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 00:37:05,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 00:37:05,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 00:37:05,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 00:37:05,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,650 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 6, 5, 2]. 40 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-25 00:37:05,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 00:37:05,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 00:37:05,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 00:37:05,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 00:37:05,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (1/1) ... [2024-10-25 00:37:05,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:37:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:37:05,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:37:05,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-25 00:37:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 00:37:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-25 00:37:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-25 00:37:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-25 00:37:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-25 00:37:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_45_0 [2024-10-25 00:37:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_45_0 [2024-10-25 00:37:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 00:37:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 00:37:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-25 00:37:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-25 00:37:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-25 00:37:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-25 00:37:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-25 00:37:05,882 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 00:37:05,884 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 00:37:06,057 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-25 00:37:06,057 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 00:37:06,068 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 00:37:06,068 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-25 00:37:06,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:37:06 BoogieIcfgContainer [2024-10-25 00:37:06,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 00:37:06,069 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-25 00:37:06,069 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-25 00:37:06,073 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-25 00:37:06,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:37:06,074 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.10 12:37:05" (1/3) ... [2024-10-25 00:37:06,075 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aab0cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:37:06, skipping insertion in model container [2024-10-25 00:37:06,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:37:06,076 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:37:05" (2/3) ... [2024-10-25 00:37:06,076 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1aab0cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:37:06, skipping insertion in model container [2024-10-25 00:37:06,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:37:06,076 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:37:06" (3/3) ... [2024-10-25 00:37:06,077 INFO L332 chiAutomizerObserver]: Analyzing ICFG recursified_simple_array_index_value_1-2.i [2024-10-25 00:37:06,137 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-25 00:37:06,137 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-25 00:37:06,138 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-25 00:37:06,138 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-25 00:37:06,138 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-25 00:37:06,138 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-25 00:37:06,139 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-25 00:37:06,139 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-25 00:37:06,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-25 00:37:06,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-25 00:37:06,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:37:06,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:37:06,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-25 00:37:06,168 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-25 00:37:06,168 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-25 00:37:06,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-25 00:37:06,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-25 00:37:06,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:37:06,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:37:06,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-25 00:37:06,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-25 00:37:06,177 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);call main_~#index~0#1.base, main_~#index~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#1(0, main_~#index~0#1.base, main_~#index~0#1.offset, 4);call main_~#tmp~0#1.base, main_~#tmp~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#2(0, main_~#tmp~0#1.base, main_~#tmp~0#1.offset, 4); 6#L90true call func_to_recursive_line_39_to_45_0(main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset);< 18#$Ultimate##0true [2024-10-25 00:37:06,177 INFO L747 eck$LassoCheckResult]: Loop: 18#$Ultimate##0true ~array.base, ~array.offset := #in~array.base, #in~array.offset;~index.base, ~index.offset := #in~index.base, #in~index.offset;~tmp.base, ~tmp.offset := #in~tmp.base, #in~tmp.offset; 7#L64true havoc #t~nondet1;call write~int#1(#t~nondet1, ~index.base, ~index.offset, 4);havoc #t~nondet1;call #t~mem2 := read~int#1(~index.base, ~index.offset, 4); 3#L68true assume !(#t~mem2 % 4294967296 >= 10000);havoc #t~mem2;call #t~mem3 := read~int#1(~index.base, ~index.offset, 4);call #t~mem4 := read~int#1(~index.base, ~index.offset, 4);call write~int#3(#t~mem4, ~array.base, ~array.offset + 4 * (if #t~mem3 % 4294967296 % 4294967296 <= 2147483647 then #t~mem3 % 4294967296 % 4294967296 else #t~mem3 % 4294967296 % 4294967296 - 4294967296), 4);havoc #t~mem3;havoc #t~mem4;call #t~mem5 := read~int#1(~index.base, ~index.offset, 4);call write~int#2(#t~mem5, ~tmp.base, ~tmp.offset, 4);havoc #t~mem5; 13#L78true call func_to_recursive_line_39_to_45_0(~array.base, ~array.offset, ~index.base, ~index.offset, ~tmp.base, ~tmp.offset);< 18#$Ultimate##0true [2024-10-25 00:37:06,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:37:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash 42796, now seen corresponding path program 1 times [2024-10-25 00:37:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:37:06,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963120913] [2024-10-25 00:37:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:37:06,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:37:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:37:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:37:06,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:37:06,357 INFO L85 PathProgramCache]: Analyzing trace with hash 926666, now seen corresponding path program 1 times [2024-10-25 00:37:06,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:37:06,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771009833] [2024-10-25 00:37:06,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:37:06,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:37:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:37:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:37:06,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:37:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash 868302197, now seen corresponding path program 1 times [2024-10-25 00:37:06,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:37:06,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340523446] [2024-10-25 00:37:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:37:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:37:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:37:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:06,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:37:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:08,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:37:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:37:08,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.10 12:37:08 BoogieIcfgContainer [2024-10-25 00:37:08,436 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-25 00:37:08,437 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-25 00:37:08,437 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-25 00:37:08,437 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-25 00:37:08,438 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:37:06" (3/4) ... [2024-10-25 00:37:08,440 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-25 00:37:08,492 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-25 00:37:08,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-25 00:37:08,495 INFO L158 Benchmark]: Toolchain (without parser) took 3298.77ms. Allocated memory is still 182.5MB. Free memory was 115.2MB in the beginning and 150.6MB in the end (delta: -35.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,496 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:37:08,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.11ms. Allocated memory is still 182.5MB. Free memory was 115.0MB in the beginning and 154.5MB in the end (delta: -39.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.22ms. Allocated memory is still 182.5MB. Free memory was 154.5MB in the beginning and 152.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,501 INFO L158 Benchmark]: Boogie Preprocessor took 51.91ms. Allocated memory is still 182.5MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:37:08,501 INFO L158 Benchmark]: RCFGBuilder took 403.57ms. Allocated memory is still 182.5MB. Free memory was 150.7MB in the beginning and 136.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,502 INFO L158 Benchmark]: BuchiAutomizer took 2366.80ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 55.6MB in the end (delta: 81.2MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,502 INFO L158 Benchmark]: Witness Printer took 57.10ms. Allocated memory is still 182.5MB. Free memory was 55.6MB in the beginning and 150.6MB in the end (delta: -95.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-10-25 00:37:08,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.11ms. Allocated memory is still 182.5MB. Free memory was 115.0MB in the beginning and 154.5MB in the end (delta: -39.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.22ms. Allocated memory is still 182.5MB. Free memory was 154.5MB in the beginning and 152.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.91ms. Allocated memory is still 182.5MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 403.57ms. Allocated memory is still 182.5MB. Free memory was 150.7MB in the beginning and 136.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2366.80ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 55.6MB in the end (delta: 81.2MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * Witness Printer took 57.10ms. Allocated memory is still 182.5MB. Free memory was 55.6MB in the beginning and 150.6MB in the end (delta: -95.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 62]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L87] unsigned int array[10000]; [L88] unsigned int index = 0; [L88] unsigned int index = 0; [L89] unsigned int tmp = 0; [L89] unsigned int tmp = 0; [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [\old(array)={28553:0}, \old(index)={28551:0}, \old(tmp)={28552:0}] Loop: [L67] *index = __VERIFIER_nondet_uint() [L68] EXPR \read(*index) [L68] COND FALSE !((*index) >= 10000) [L75] EXPR \read(*index) [L75] EXPR \read(*index) [L75] (*array)[*index] = *index [L76] EXPR \read(*index) [L76] *tmp = *index [L78] CALL func_to_recursive_line_39_to_45_0(array, index, tmp) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 62]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] unsigned int array[10000]; [L88] unsigned int index = 0; [L88] unsigned int index = 0; [L89] unsigned int tmp = 0; [L89] unsigned int tmp = 0; [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [\old(array)={28553:0}, \old(index)={28551:0}, \old(tmp)={28552:0}] Loop: [L67] *index = __VERIFIER_nondet_uint() [L68] EXPR \read(*index) [L68] COND FALSE !((*index) >= 10000) [L75] EXPR \read(*index) [L75] EXPR \read(*index) [L75] (*array)[*index] = *index [L76] EXPR \read(*index) [L76] *tmp = *index [L78] CALL func_to_recursive_line_39_to_45_0(array, index, tmp) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-25 00:37:08,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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(TERM)