./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 9bd2c7ff 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_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/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_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:34:54,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:54,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:34:54,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:54,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:54,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:54,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:54,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:54,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:54,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:54,322 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:54,323 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:34:54,324 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:34:54,324 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:34:54,325 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:34:54,325 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:34:54,326 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:34:54,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:54,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:34:54,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:54,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:54,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:54,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:54,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:34:54,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:34:54,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:34:54,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:54,333 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:54,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:54,334 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:34:54,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:54,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:54,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:54,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:54,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:54,338 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:34:54,338 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_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc [2023-11-19 07:34:54,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:54,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:54,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:54,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:54,628 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:54,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2023-11-19 07:34:57,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:58,169 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:58,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2023-11-19 07:34:58,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/data/f3ba008d5/3af9c9f40cf04843ac4ff88ac5d822f5/FLAGdbdce4be5 [2023-11-19 07:34:58,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/data/f3ba008d5/3af9c9f40cf04843ac4ff88ac5d822f5 [2023-11-19 07:34:58,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:58,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:58,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:58,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:58,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:58,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c41a6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58, skipping insertion in model container [2023-11-19 07:34:58,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:58,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:58,401 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:58,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:58,435 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:58,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58 WrapperNode [2023-11-19 07:34:58,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:58,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:58,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:58,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:58,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,467 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2023-11-19 07:34:58,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:58,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:58,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:58,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:58,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:58,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:58,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:58,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:58,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:34:58,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:58,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:58,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:34:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_45_0 [2023-11-19 07:34:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_45_0 [2023-11-19 07:34:58,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:58,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:34:58,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:58,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:58,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:58,985 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:58,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:58,994 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:34:58,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:58 BoogieIcfgContainer [2023-11-19 07:34:58,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:58,999 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:34:58,999 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:34:59,004 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:34:59,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:34:58" (1/3) ... [2023-11-19 07:34:59,006 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f8a0d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:34:59, skipping insertion in model container [2023-11-19 07:34:59,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,007 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58" (2/3) ... [2023-11-19 07:34:59,007 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f8a0d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:34:59, skipping insertion in model container [2023-11-19 07:34:59,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,008 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:58" (3/3) ... [2023-11-19 07:34:59,009 INFO L332 chiAutomizerObserver]: Analyzing ICFG recursified_simple_array_index_value_1-2.i [2023-11-19 07:34:59,088 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:34:59,088 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:34:59,088 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:34:59,088 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:34:59,089 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:34:59,089 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:34:59,089 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:34:59,089 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:34:59,094 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) [2023-11-19 07:34:59,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:34:59,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:34:59,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:34:59,131 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:34:59,131 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:34:59,132 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:34:59,132 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) [2023-11-19 07:34:59,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:34:59,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:34:59,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:34:59,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:34:59,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:34:59,144 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);call main_~#index~0#1.base, main_~#index~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int(0, main_~#index~0#1.base, main_~#index~0#1.offset, 4);call main_~#tmp~0#1.base, main_~#tmp~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int(0, main_~#tmp~0#1.base, main_~#tmp~0#1.offset, 4); 6#L90true call func_to_recursive_line_39_to_45_0(main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset);< 18#$Ultimate##0true [2023-11-19 07:34:59,145 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(#t~nondet1, ~index.base, ~index.offset, 4);havoc #t~nondet1;call #t~mem2 := read~int(~index.base, ~index.offset, 4); 3#L68true assume !(#t~mem2 % 4294967296 >= 10000);havoc #t~mem2;call #t~mem3 := read~int(~index.base, ~index.offset, 4);call #t~mem4 := read~int(~index.base, ~index.offset, 4);call write~int(#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(~index.base, ~index.offset, 4);call write~int(#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 [2023-11-19 07:34:59,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 42796, now seen corresponding path program 1 times [2023-11-19 07:34:59,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:59,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929382937] [2023-11-19 07:34:59,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:59,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:34:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:34:59,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 926666, now seen corresponding path program 1 times [2023-11-19 07:34:59,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:59,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685992820] [2023-11-19 07:34:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:59,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:34:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:34:59,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:59,486 INFO L85 PathProgramCache]: Analyzing trace with hash 868302197, now seen corresponding path program 1 times [2023-11-19 07:34:59,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:59,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427799202] [2023-11-19 07:34:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:59,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:34:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:34:59,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:05,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:05,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:35:05 BoogieIcfgContainer [2023-11-19 07:35:05,475 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:35:05,476 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:05,476 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:05,477 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:05,477 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:58" (3/4) ... [2023-11-19 07:35:05,481 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:35:05,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:35:05,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:05,545 INFO L158 Benchmark]: Toolchain (without parser) took 7347.21ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 98.3MB in the beginning and 106.7MB in the end (delta: -8.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,546 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:05,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.04ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 87.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.11ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,554 INFO L158 Benchmark]: Boogie Preprocessor took 29.98ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:05,555 INFO L158 Benchmark]: RCFGBuilder took 499.17ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 72.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,555 INFO L158 Benchmark]: BuchiAutomizer took 6476.22ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 71.7MB in the beginning and 108.8MB in the end (delta: -37.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,556 INFO L158 Benchmark]: Witness Printer took 66.42ms. Allocated memory is still 205.5MB. Free memory was 108.8MB in the beginning and 106.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:05,559 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 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.04ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 87.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.11ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.98ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 499.17ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 72.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6476.22ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 71.7MB in the beginning and 108.8MB in the end (delta: -37.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 66.42ms. Allocated memory is still 205.5MB. Free memory was 108.8MB in the beginning and 106.7MB 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 6.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 6.3s. 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; [L89] unsigned int tmp = 0; VAL [array={11934:0}, index={11932:0}, tmp={11933:0}] [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [array={11934:0}, index={11932:0}, tmp={11933:0}] 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; [L89] unsigned int tmp = 0; VAL [array={11934:0}, index={11932:0}, tmp={11933:0}] [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [array={11934:0}, index={11932:0}, tmp={11933:0}] 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! [2023-11-19 07:35:05,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9414127-59aa-46f2-8c54-ce8748709a0e/bin/uautomizer-verify-uCwYo4JHxu/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)