./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-551b009-m [2025-01-10 07:50:28,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:50:28,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:50:28,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:50:28,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:50:28,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:50:28,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:50:28,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:50:28,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:50:28,384 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:50:28,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:50:28,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:50:28,385 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:50:28,386 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:50:28,386 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:50:28,386 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:50:28,386 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:50:28,386 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:50:28,386 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:50:28,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:50:28,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:50:28,388 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:50:28,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:50:28,388 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:50:28,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:50:28,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:50:28,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:50:28,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:50:28,389 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:50:28,389 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 [2025-01-10 07:50:28,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:50:28,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:50:28,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:50:28,692 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:50:28,692 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:50:28,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2025-01-10 07:50:29,986 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87c73e401/2b86802b89574fcb8a576b05f2261f82/FLAG91369d52a [2025-01-10 07:50:30,360 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:50:30,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2025-01-10 07:50:30,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87c73e401/2b86802b89574fcb8a576b05f2261f82/FLAG91369d52a [2025-01-10 07:50:30,607 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87c73e401/2b86802b89574fcb8a576b05f2261f82 [2025-01-10 07:50:30,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:50:30,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:50:30,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:50:30,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:50:30,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:50:30,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce300f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30, skipping insertion in model container [2025-01-10 07:50:30,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:50:30,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:50:30,763 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:50:30,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:50:30,789 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:50:30,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30 WrapperNode [2025-01-10 07:50:30,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:50:30,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:50:30,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:50:30,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:50:30,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,813 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2025-01-10 07:50:30,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:50:30,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:50:30,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:50:30,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:50:30,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,835 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 2, 6, 5]. 40 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-10 07:50:30,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,840 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:50:30,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:50:30,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:50:30,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:50:30,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (1/1) ... [2025-01-10 07:50:30,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:50:30,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:50:30,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:50:30,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_45_0 [2025-01-10 07:50:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_45_0 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:50:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 07:50:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 07:50:30,935 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:50:30,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:50:31,028 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-01-10 07:50:31,029 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:50:31,034 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:50:31,035 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-10 07:50:31,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:50:31 BoogieIcfgContainer [2025-01-10 07:50:31,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:50:31,036 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:50:31,036 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:50:31,040 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:50:31,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:50:31,040 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:50:30" (1/3) ... [2025-01-10 07:50:31,041 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1984d449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:50:31, skipping insertion in model container [2025-01-10 07:50:31,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:50:31,041 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:50:30" (2/3) ... [2025-01-10 07:50:31,041 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1984d449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:50:31, skipping insertion in model container [2025-01-10 07:50:31,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:50:31,042 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:50:31" (3/3) ... [2025-01-10 07:50:31,042 INFO L363 chiAutomizerObserver]: Analyzing ICFG recursified_simple_array_index_value_1-2.i [2025-01-10 07:50:31,074 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:50:31,074 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:50:31,074 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:50:31,074 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:50:31,074 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:50:31,074 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:50:31,074 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:50:31,075 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:50:31,078 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) [2025-01-10 07:50:31,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:50:31,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:50:31,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:50:31,093 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:50:31,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-01-10 07:50:31,093 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:50:31,094 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) [2025-01-10 07:50:31,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-01-10 07:50:31,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:50:31,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:50:31,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:50:31,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-01-10 07:50:31,099 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);call main_~#index~0#1.base, main_~#index~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#2(0, main_~#index~0#1.base, main_~#index~0#1.offset, 4);call main_~#tmp~0#1.base, main_~#tmp~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#3(0, main_~#tmp~0#1.base, main_~#tmp~0#1.offset, 4);" "call func_to_recursive_line_39_to_45_0(main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset);"< [2025-01-10 07:50:31,100 INFO L754 eck$LassoCheckResult]: Loop: "~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;" "havoc #t~nondet1;call write~int#2(#t~nondet1, ~index.base, ~index.offset, 4);havoc #t~nondet1;call #t~mem2 := read~int#2(~index.base, ~index.offset, 4);" "assume !(#t~mem2 % 4294967296 >= 10000);havoc #t~mem2;call #t~mem3 := read~int#2(~index.base, ~index.offset, 4);call #t~mem4 := read~int#2(~index.base, ~index.offset, 4);call write~int#1(#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#2(~index.base, ~index.offset, 4);call write~int#3(#t~mem5, ~tmp.base, ~tmp.offset, 4);havoc #t~mem5;" "call func_to_recursive_line_39_to_45_0(~array.base, ~array.offset, ~index.base, ~index.offset, ~tmp.base, ~tmp.offset);"< [2025-01-10 07:50:31,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:50:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 42796, now seen corresponding path program 1 times [2025-01-10 07:50:31,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:50:31,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717542566] [2025-01-10 07:50:31,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:50:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:50:31,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:50:31,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:50:31,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,173 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:50:31,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:50:31,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:50:31,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:50:31,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:50:31,209 INFO L85 PathProgramCache]: Analyzing trace with hash 926666, now seen corresponding path program 1 times [2025-01-10 07:50:31,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:50:31,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036614791] [2025-01-10 07:50:31,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:50:31,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:50:31,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:50:31,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:50:31,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,262 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:50:31,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:50:31,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:50:31,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:50:31,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:50:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash 868302197, now seen corresponding path program 1 times [2025-01-10 07:50:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:50:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165950943] [2025-01-10 07:50:31,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:50:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:50:31,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:50:31,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:50:31,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,358 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:50:31,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:50:31,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:50:31,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:31,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:31,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:50:33,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:50:33,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:50:33,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:33,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:33,254 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:50:33,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:50:33,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:50:33,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:50:33,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:50:33,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:50:33 BoogieIcfgContainer [2025-01-10 07:50:33,322 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:50:33,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:50:33,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:50:33,326 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:50:33,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:50:31" (3/4) ... [2025-01-10 07:50:33,328 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 07:50:33,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 07:50:33,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:50:33,359 INFO L158 Benchmark]: Toolchain (without parser) took 2745.83ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 112.9MB in the beginning and 310.2MB in the end (delta: -197.3MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2025-01-10 07:50:33,359 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:50:33,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.67ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 101.8MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:50:33,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.28ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:50:33,360 INFO L158 Benchmark]: Boogie Preprocessor took 29.43ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:50:33,360 INFO L158 Benchmark]: RCFGBuilder took 190.33ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 86.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:50:33,361 INFO L158 Benchmark]: BuchiAutomizer took 2289.57ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 86.0MB in the beginning and 313.2MB in the end (delta: -227.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2025-01-10 07:50:33,361 INFO L158 Benchmark]: Witness Printer took 32.15ms. Allocated memory is still 402.7MB. Free memory was 313.2MB in the beginning and 310.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:50:33,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.67ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 101.8MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.28ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.43ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 190.33ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 86.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2289.57ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 86.0MB in the beginning and 313.2MB in the end (delta: -227.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 32.15ms. Allocated memory is still 402.7MB. Free memory was 313.2MB in the beginning and 310.2MB in the end (delta: 3.0MB). There was no memory consumed. 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 2.1s. 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)={6603:0}, \old(index)={6602:0}, \old(tmp)={6604:0}] 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)={6603:0}, \old(index)={6602:0}, \old(tmp)={6604:0}] 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! [2025-01-10 07:50:33,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)