./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 22:07:52,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:52,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:07:52,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:52,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:52,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:52,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:52,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:52,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:52,745 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:52,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:52,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:52,747 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:52,748 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:07:52,749 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:07:52,749 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:07:52,750 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:07:52,750 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:07:52,751 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:07:52,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:52,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:07:52,752 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:07:52,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:52,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:07:52,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:52,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:07:52,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:07:52,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:07:52,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:52,756 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:07:52,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:52,758 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:07:52,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:52,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:52,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:52,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:52,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:52,760 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:07:52,760 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc [2023-11-21 22:07:53,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:53,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:53,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:53,135 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:53,136 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:53,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2023-11-21 22:07:56,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:56,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:56,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2023-11-21 22:07:56,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/data/e6ae25137/791c915e1462414faae78bfd4746527c/FLAG3a1bf13b0 [2023-11-21 22:07:56,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/data/e6ae25137/791c915e1462414faae78bfd4746527c [2023-11-21 22:07:56,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:56,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:56,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:56,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:56,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:56,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccc06d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56, skipping insertion in model container [2023-11-21 22:07:56,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:56,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:56,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:56,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:56,940 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:56,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56 WrapperNode [2023-11-21 22:07:56,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:56,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:56,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:56,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:56,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,976 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2023-11-21 22:07:56,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:56,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:56,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:56,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:56,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:56,997 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,010 INFO L187 HeapSplitter]: Split 15 memory accesses to 4 slices as follows [2, 6, 2, 5] [2023-11-21 22:07:57,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:57,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:57,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:57,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:57,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (1/1) ... [2023-11-21 22:07:57,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:07:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:57,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:57,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:07:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:07:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:07:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:07:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:07:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:07:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:07:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:07:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_45_0 [2023-11-21 22:07:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_45_0 [2023-11-21 22:07:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:07:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:07:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:07:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:07:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:57,213 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:57,216 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:57,404 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:57,416 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:57,418 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:07:57,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:57 BoogieIcfgContainer [2023-11-21 22:07:57,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:57,423 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:07:57,423 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:07:57,428 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:07:57,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:07:57,429 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:07:56" (1/3) ... [2023-11-21 22:07:57,431 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33ee898a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:07:57, skipping insertion in model container [2023-11-21 22:07:57,431 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:07:57,431 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:56" (2/3) ... [2023-11-21 22:07:57,434 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33ee898a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:07:57, skipping insertion in model container [2023-11-21 22:07:57,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:07:57,435 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:57" (3/3) ... [2023-11-21 22:07:57,436 INFO L332 chiAutomizerObserver]: Analyzing ICFG recursified_simple_array_index_value_1-2.i [2023-11-21 22:07:57,517 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:07:57,518 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:07:57,518 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:07:57,518 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:07:57,518 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:07:57,519 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:07:57,519 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:07:57,519 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:07:57,524 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) [2023-11-21 22:07:57,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 22:07:57,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:07:57,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:07:57,556 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:07:57,556 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:07:57,556 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:07:57,557 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) [2023-11-21 22:07:57,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 22:07:57,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:07:57,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:07:57,562 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:07:57,563 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:07:57,572 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);call main_~#index~0#1.base, main_~#index~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#1(0, main_~#index~0#1.base, main_~#index~0#1.offset, 4);call main_~#tmp~0#1.base, main_~#tmp~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#3(0, main_~#tmp~0#1.base, main_~#tmp~0#1.offset, 4); 6#L90true call func_to_recursive_line_39_to_45_0(main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset);< 18#$Ultimate##0true [2023-11-21 22:07:57,573 INFO L750 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#2(#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#3(#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 [2023-11-21 22:07:57,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash 42796, now seen corresponding path program 1 times [2023-11-21 22:07:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:57,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873092861] [2023-11-21 22:07:57,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:57,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:57,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:57,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash 926666, now seen corresponding path program 1 times [2023-11-21 22:07:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:57,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899519115] [2023-11-21 22:07:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:57,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:58,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:58,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:58,033 INFO L85 PathProgramCache]: Analyzing trace with hash 868302197, now seen corresponding path program 1 times [2023-11-21 22:07:58,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:58,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78419712] [2023-11-21 22:07:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:58,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:58,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:58,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:08:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:00,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:08:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:00,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:08:00 BoogieIcfgContainer [2023-11-21 22:08:00,791 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:08:00,792 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:08:00,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:08:00,793 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:08:00,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:57" (3/4) ... [2023-11-21 22:08:00,798 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:08:00,868 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:08:00,869 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:08:00,871 INFO L158 Benchmark]: Toolchain (without parser) took 4180.38ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 95.6MB in the beginning and 147.1MB in the end (delta: -51.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:00,871 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:00,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.90ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 85.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:08:00,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:00,877 INFO L158 Benchmark]: Boogie Preprocessor took 49.74ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:00,878 INFO L158 Benchmark]: RCFGBuilder took 393.46ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 68.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:08:00,878 INFO L158 Benchmark]: BuchiAutomizer took 3368.39ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 68.4MB in the beginning and 149.2MB in the end (delta: -80.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:00,879 INFO L158 Benchmark]: Witness Printer took 76.83ms. Allocated memory is still 188.7MB. Free memory was 149.2MB in the beginning and 147.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:00,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.90ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 85.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.74ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.46ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 68.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3368.39ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 68.4MB in the beginning and 149.2MB in the end (delta: -80.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.83ms. Allocated memory is still 188.7MB. Free memory was 149.2MB in the beginning and 147.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 3.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. 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 [array={25638:0}, index={25636:0}, tmp={25637:0}] 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 [array={25638:0}, index={25636:0}, tmp={25637:0}] 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! [2023-11-21 22:08:00,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b757194-db03-42d6-bd34-a3079021b4c9/bin/uautomizer-verify-bycVGegfSx/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)