./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/NO_02.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a10720b7613c5e2eb453af920488d48ff40b71a0acd05114bf4a692390bb0e0c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:01:08,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:01:08,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-06 19:01:08,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:01:08,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:01:08,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:01:08,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:01:08,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:01:08,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:01:08,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:01:08,597 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:01:08,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:01:08,598 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:01:08,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:01:08,598 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:01:08,599 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:01:08,599 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:01:08,599 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:01:08,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:01:08,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:01:08,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:01:08,599 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:01:08,599 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a10720b7613c5e2eb453af920488d48ff40b71a0acd05114bf4a692390bb0e0c [2025-02-06 19:01:09,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:01:09,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:01:09,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:01:09,027 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:01:09,027 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:01:09,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_02.c [2025-02-06 19:01:10,504 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626bba50a/fe42dc5053314b8cbf97554e73bf4bb1/FLAG213f82824 [2025-02-06 19:01:10,755 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:01:10,760 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_02.c [2025-02-06 19:01:10,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626bba50a/fe42dc5053314b8cbf97554e73bf4bb1/FLAG213f82824 [2025-02-06 19:01:10,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626bba50a/fe42dc5053314b8cbf97554e73bf4bb1 [2025-02-06 19:01:10,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:01:10,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:01:10,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:01:10,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:01:10,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:01:10,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d255e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10, skipping insertion in model container [2025-02-06 19:01:10,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:01:10,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:01:10,910 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:01:10,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:01:10,927 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:01:10,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10 WrapperNode [2025-02-06 19:01:10,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:01:10,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:01:10,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:01:10,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:01:10,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,944 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2025-02-06 19:01:10,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:01:10,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:01:10,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:01:10,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:01:10,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,954 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-06 19:01:10,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:01:10,959 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:01:10,959 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:01:10,959 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:01:10,960 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (1/1) ... [2025-02-06 19:01:10,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:01:10,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:01:10,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:01:10,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:01:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:01:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:01:11,066 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:01:11,067 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:01:11,128 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-02-06 19:01:11,129 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:01:11,138 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:01:11,142 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:01:11,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:01:11 BoogieIcfgContainer [2025-02-06 19:01:11,143 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:01:11,143 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:01:11,144 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:01:11,152 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:01:11,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:01:11,153 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:01:10" (1/3) ... [2025-02-06 19:01:11,154 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53245bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:01:11, skipping insertion in model container [2025-02-06 19:01:11,154 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:01:11,154 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:01:10" (2/3) ... [2025-02-06 19:01:11,154 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53245bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:01:11, skipping insertion in model container [2025-02-06 19:01:11,154 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:01:11,154 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:01:11" (3/3) ... [2025-02-06 19:01:11,155 INFO L363 chiAutomizerObserver]: Analyzing ICFG NO_02.c [2025-02-06 19:01:11,205 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:01:11,205 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:01:11,205 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:01:11,206 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:01:11,206 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:01:11,206 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:01:11,206 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:01:11,206 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:01:11,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-02-06 19:01:11,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-06 19:01:11,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:01:11,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:01:11,219 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:01:11,220 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-06 19:01:11,220 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:01:11,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-02-06 19:01:11,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-06 19:01:11,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:01:11,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:01:11,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:01:11,221 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-06 19:01:11,225 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;" [2025-02-06 19:01:11,225 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;main_~j~0#1 := 0;" "assume !(main_~j~0#1 < 1);main_~i~0#1 := 1 + main_~i~0#1;" [2025-02-06 19:01:11,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:01:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-02-06 19:01:11,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:01:11,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447326240] [2025-02-06 19:01:11,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:01:11,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:01:11,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:01:11,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:01:11,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,323 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:01:11,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:01:11,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:01:11,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:01:11,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:01:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2025-02-06 19:01:11,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:01:11,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580482302] [2025-02-06 19:01:11,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:01:11,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:01:11,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:01:11,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:01:11,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:01:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:01:11,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:01:11,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580482302] [2025-02-06 19:01:11,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580482302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:01:11,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:01:11,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 19:01:11,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127025115] [2025-02-06 19:01:11,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:01:11,457 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:01:11,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:01:11,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:01:11,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:01:11,498 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-06 19:01:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:01:11,515 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2025-02-06 19:01:11,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2025-02-06 19:01:11,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:01:11,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 4 states and 4 transitions. [2025-02-06 19:01:11,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-06 19:01:11,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-06 19:01:11,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2025-02-06 19:01:11,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:01:11,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2025-02-06 19:01:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2025-02-06 19:01:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2025-02-06 19:01:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-06 19:01:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2025-02-06 19:01:11,564 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2025-02-06 19:01:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:01:11,571 INFO L432 stractBuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2025-02-06 19:01:11,571 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:01:11,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2025-02-06 19:01:11,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:01:11,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:01:11,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:01:11,572 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:01:11,572 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-06 19:01:11,572 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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;" "assume main_~i~0#1 < 100;main_~j~0#1 := 0;" [2025-02-06 19:01:11,572 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < 1;main_~j~0#1 := main_~j~0#1;" [2025-02-06 19:01:11,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:01:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash 36709, now seen corresponding path program 1 times [2025-02-06 19:01:11,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:01:11,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96110232] [2025-02-06 19:01:11,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:01:11,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:01:11,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:01:11,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:01:11,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,583 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:01:11,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:01:11,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:01:11,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:01:11,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:01:11,586 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-06 19:01:11,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:01:11,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449613416] [2025-02-06 19:01:11,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:01:11,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:01:11,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:01:11,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:01:11,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,592 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:01:11,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:01:11,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:01:11,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:01:11,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:01:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1137983, now seen corresponding path program 1 times [2025-02-06 19:01:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:01:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418291696] [2025-02-06 19:01:11,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:01:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:01:11,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:01:11,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:01:11,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,606 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:01:11,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:01:11,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:01:11,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:01:11,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:01:11,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:01:11,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,675 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:01:11,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:01:11,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:01:11,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:01:11,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:01:11,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:01:11 BoogieIcfgContainer [2025-02-06 19:01:11,693 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:01:11,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:01:11,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:01:11,693 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:01:11,694 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:01:11" (3/4) ... [2025-02-06 19:01:11,695 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:01:11,716 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:01:11,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:01:11,716 INFO L158 Benchmark]: Toolchain (without parser) took 909.51ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 59.7MB in the end (delta: 46.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-06 19:01:11,716 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:01:11,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 120.32ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:01:11,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.25ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 96.0MB in the end (delta: 960.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:01:11,717 INFO L158 Benchmark]: Boogie Preprocessor took 12.39ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 943.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:01:11,718 INFO L158 Benchmark]: IcfgBuilder took 183.68ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 85.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:01:11,718 INFO L158 Benchmark]: BuchiAutomizer took 549.49ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 62.5MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 19:01:11,718 INFO L158 Benchmark]: Witness Printer took 22.44ms. Allocated memory is still 142.6MB. Free memory was 62.5MB in the beginning and 59.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:01:11,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 120.32ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.25ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 96.0MB in the end (delta: 960.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.39ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 943.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 183.68ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 85.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 549.49ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 62.5MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 22.44ms. Allocated memory is still 142.6MB. Free memory was 62.5MB in the beginning and 59.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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 4 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 0.1s. 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, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 3 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: 12]: 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] [L10] COND TRUE i < 100 [L11] j = 0 VAL [i=0, j=0] Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: 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] [L10] COND TRUE i < 100 [L11] j = 0 VAL [i=0, j=0] Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:01:11,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)