./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya --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 64bit --witnessprinter.graph.data.programhash 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:54:16,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:54:16,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 02:54:16,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:54:16,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:54:16,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:54:16,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:54:16,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:54:16,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:54:16,148 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:54:16,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:54:16,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:54:16,149 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:54:16,150 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:54:16,151 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:54:16,151 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:54:16,152 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:54:16,152 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:54:16,152 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:54:16,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:54:16,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:54:16,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:54:16,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:54:16,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:54:16,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:54:16,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:54:16,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:54:16,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:54:16,157 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:54:16,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:54:16,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:54:16,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:54:16,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:54:16,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:54:16,160 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:54:16,161 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_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 [2023-11-29 02:54:16,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:54:16,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:54:16,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:54:16,438 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:54:16,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:54:16,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/NO_03.c [2023-11-29 02:54:19,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:54:19,338 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:54:19,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/sv-benchmarks/c/termination-restricted-15/NO_03.c [2023-11-29 02:54:19,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/data/0c6ef4f73/351afa09ecd2495ab0c86e3ff8c22077/FLAG8da4eeda4 [2023-11-29 02:54:19,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/data/0c6ef4f73/351afa09ecd2495ab0c86e3ff8c22077 [2023-11-29 02:54:19,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:54:19,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:54:19,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:54:19,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:54:19,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:54:19,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7010efc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19, skipping insertion in model container [2023-11-29 02:54:19,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,385 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:54:19,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:54:19,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:54:19,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:54:19,550 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:54:19,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19 WrapperNode [2023-11-29 02:54:19,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:54:19,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:54:19,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:54:19,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:54:19,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,582 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-11-29 02:54:19,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:54:19,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:54:19,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:54:19,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:54:19,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,598 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 02:54:19,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:54:19,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:54:19,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:54:19,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:54:19,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (1/1) ... [2023-11-29 02:54:19,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:54:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:19,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:54:19,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:54:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:54:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:54:19,776 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:54:19,780 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:54:19,858 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:54:19,867 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:54:19,867 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:54:19,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:54:19 BoogieIcfgContainer [2023-11-29 02:54:19,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:54:19,871 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:54:19,871 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:54:19,875 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:54:19,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:54:19,877 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:54:19" (1/3) ... [2023-11-29 02:54:19,878 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19e19c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:54:19, skipping insertion in model container [2023-11-29 02:54:19,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:54:19,878 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:54:19" (2/3) ... [2023-11-29 02:54:19,879 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19e19c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:54:19, skipping insertion in model container [2023-11-29 02:54:19,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:54:19,879 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:54:19" (3/3) ... [2023-11-29 02:54:19,880 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2023-11-29 02:54:19,934 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:54:19,934 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:54:19,934 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:54:19,934 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:54:19,934 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:54:19,935 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:54:19,935 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:54:19,935 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:54:19,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:19,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 02:54:19,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:54:19,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:54:19,959 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:54:19,959 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 02:54:19,959 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:54:19,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:19,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 02:54:19,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:54:19,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:54:19,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:54:19,961 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 02:54:19,967 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 4#L10-2true [2023-11-29 02:54:19,968 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 2#L12-2true assume !(main_~j~0#1 < 1); 5#L12-3true main_~i~0#1 := main_~i~0#1; 4#L10-2true [2023-11-29 02:54:19,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 02:54:19,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:19,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907727320] [2023-11-29 02:54:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:54:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:54:20,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-29 02:54:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:20,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270684702] [2023-11-29 02:54:20,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:20,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:20,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270684702] [2023-11-29 02:54:20,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270684702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:20,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:20,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:54:20,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699700215] [2023-11-29 02:54:20,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:20,133 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 02:54:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:20,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:20,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:20,172 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:20,190 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-29 02:54:20,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-29 02:54:20,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 02:54:20,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2023-11-29 02:54:20,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 02:54:20,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 02:54:20,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-29 02:54:20,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:54:20,199 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 02:54:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-29 02:54:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 02:54:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-29 02:54:20,226 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 02:54:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:20,231 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 02:54:20,232 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 02:54:20,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-29 02:54:20,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 02:54:20,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:54:20,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:54:20,233 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:54:20,233 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-29 02:54:20,233 INFO L748 eck$LassoCheckResult]: Stem: 32#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 30#L10-2 [2023-11-29 02:54:20,233 INFO L750 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 28#L12-2 assume !!(main_~j~0#1 < 1);main_~j~0#1 := 1 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 1); 31#L12-3 main_~i~0#1 := main_~i~0#1; 30#L10-2 [2023-11-29 02:54:20,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-29 02:54:20,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:20,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381055826] [2023-11-29 02:54:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:20,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:54:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:54:20,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2023-11-29 02:54:20,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:20,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756104064] [2023-11-29 02:54:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:54:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:54:20,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2023-11-29 02:54:20,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:20,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558773227] [2023-11-29 02:54:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:54:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:54:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:54:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:54:20,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:54:20 BoogieIcfgContainer [2023-11-29 02:54:20,404 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:54:20,404 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:54:20,404 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:54:20,405 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:54:20,405 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:54:19" (3/4) ... [2023-11-29 02:54:20,407 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 02:54:20,443 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:54:20,443 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:54:20,444 INFO L158 Benchmark]: Toolchain (without parser) took 1084.45ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 96.4MB in the end (delta: 30.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,444 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:54:20,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.29ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 117.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.42ms. Allocated memory is still 159.4MB. Free memory was 117.8MB in the beginning and 116.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,446 INFO L158 Benchmark]: Boogie Preprocessor took 24.86ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 115.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:54:20,447 INFO L158 Benchmark]: RCFGBuilder took 261.40ms. Allocated memory is still 159.4MB. Free memory was 115.2MB in the beginning and 127.0MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,447 INFO L158 Benchmark]: BuchiAutomizer took 532.88ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 98.5MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,448 INFO L158 Benchmark]: Witness Printer took 39.16ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:54:20,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.29ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 117.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.42ms. Allocated memory is still 159.4MB. Free memory was 117.8MB in the beginning and 116.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.86ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 115.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.40ms. Allocated memory is still 159.4MB. Free memory was 115.2MB in the beginning and 127.0MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 532.88ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 98.5MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 39.16ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 96.4MB 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. 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: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] i = 0 VAL [i=0] Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 VAL [i=0] Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 02:54:20,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697e74bd-0059-42b4-8a59-25e4bc9b3566/bin/uautomizer-verify-BQ2R08f2Ya/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)