./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Loop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/Loop-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:07:03,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:07:03,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 02:07:03,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:07:03,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:07:03,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:07:03,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:07:03,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:07:03,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:07:03,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:07:03,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:07:03,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:07:03,855 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:07:03,855 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:07:03,856 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:07:03,856 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:07:03,856 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:07:03,857 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:07:03,857 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:07:03,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:07:03,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:07:03,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:07:03,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:07:03,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:07:03,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:07:03,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:07:03,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:07:03,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:07:03,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:07:03,861 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:07:03,861 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:07:03,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:07:03,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:07:03,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:07:03,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:07:03,863 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:07:03,864 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42637c171db16e9b30ddb9b81ced3fc8afebc727d3cebc25aef685f9a2d7301b [2024-11-23 02:07:04,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:07:04,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:07:04,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:07:04,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:07:04,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:07:04,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Loop-2.c [2024-11-23 02:07:05,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:07:05,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:07:05,699 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2024-11-23 02:07:05,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5f7d836/e93635235ec54195a67b2f7e2e0ea707/FLAGe26e30c57 [2024-11-23 02:07:05,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5f7d836/e93635235ec54195a67b2f7e2e0ea707 [2024-11-23 02:07:05,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:07:05,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:07:05,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:07:05,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:07:05,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:07:05,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b9da09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05, skipping insertion in model container [2024-11-23 02:07:05,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:07:05,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:07:05,884 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:07:05,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:07:05,908 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:07:05,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05 WrapperNode [2024-11-23 02:07:05,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:07:05,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:07:05,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:07:05,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:07:05,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,932 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-11-23 02:07:05,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:07:05,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:07:05,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:07:05,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:07:05,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,946 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 02:07:05,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:07:05,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:07:05,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:07:05,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:07:05,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (1/1) ... [2024-11-23 02:07:05,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:07:05,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:07:06,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:07:06,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:07:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:07:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:07:06,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:07:06,129 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:07:06,159 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-23 02:07:06,159 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:07:06,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:07:06,167 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 02:07:06,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:06 BoogieIcfgContainer [2024-11-23 02:07:06,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:07:06,168 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:07:06,169 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:07:06,172 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:07:06,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:07:06,173 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:07:05" (1/3) ... [2024-11-23 02:07:06,173 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22feeb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:07:06, skipping insertion in model container [2024-11-23 02:07:06,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:07:06,174 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:05" (2/3) ... [2024-11-23 02:07:06,174 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22feeb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:07:06, skipping insertion in model container [2024-11-23 02:07:06,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:07:06,174 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:06" (3/3) ... [2024-11-23 02:07:06,175 INFO L332 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2024-11-23 02:07:06,217 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:07:06,218 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:07:06,218 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:07:06,218 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:07:06,218 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:07:06,218 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:07:06,218 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:07:06,218 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:07:06,222 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) [2024-11-23 02:07:06,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-23 02:07:06,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:07:06,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:07:06,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:07:06,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-23 02:07:06,242 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:07:06,243 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) [2024-11-23 02:07:06,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-23 02:07:06,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:07:06,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:07:06,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:07:06,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-23 02:07:06,250 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~a~0#1, main_~b~0#1, main_~i~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~i~0#1;main_~a~0#1 := 5;main_~b~0#1 := 3;main_~i~0#1 := 0; 4#L13-2true [2024-11-23 02:07:06,250 INFO L747 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~i~0#1 < 10);main_~i~0#1 := main_~i~0#1; 4#L13-2true [2024-11-23 02:07:06,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:07:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-23 02:07:06,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:07:06,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288727427] [2024-11-23 02:07:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:07:06,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:07:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:07:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:07:06,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:07:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2024-11-23 02:07:06,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:07:06,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680367498] [2024-11-23 02:07:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:07:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:07:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:07:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:07:06,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:07:06,371 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-23 02:07:06,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:07:06,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113311368] [2024-11-23 02:07:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:07:06,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:07:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:07:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:07:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:07:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:07:06,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:07:06 BoogieIcfgContainer [2024-11-23 02:07:06,516 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:07:06,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:07:06,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:07:06,517 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:07:06,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:06" (3/4) ... [2024-11-23 02:07:06,520 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 02:07:06,547 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:07:06,547 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:07:06,549 INFO L158 Benchmark]: Toolchain (without parser) took 811.76ms. Allocated memory is still 165.7MB. Free memory was 96.7MB in the beginning and 109.8MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:07:06,549 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 165.7MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:07:06,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.96ms. Allocated memory is still 165.7MB. Free memory was 96.5MB in the beginning and 85.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.62ms. Allocated memory is still 165.7MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,550 INFO L158 Benchmark]: Boogie Preprocessor took 36.75ms. Allocated memory is still 165.7MB. Free memory was 84.0MB in the beginning and 138.5MB in the end (delta: -54.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,550 INFO L158 Benchmark]: RCFGBuilder took 197.36ms. Allocated memory is still 165.7MB. Free memory was 138.5MB in the beginning and 129.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,551 INFO L158 Benchmark]: BuchiAutomizer took 347.87ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 111.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,552 INFO L158 Benchmark]: Witness Printer took 30.81ms. Allocated memory is still 165.7MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:07:06,554 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 165.7MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.96ms. Allocated memory is still 165.7MB. Free memory was 96.5MB in the beginning and 85.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.62ms. Allocated memory is still 165.7MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.75ms. Allocated memory is still 165.7MB. Free memory was 84.0MB in the beginning and 138.5MB in the end (delta: -54.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * RCFGBuilder took 197.36ms. Allocated memory is still 165.7MB. Free memory was 138.5MB in the beginning and 129.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 347.87ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 111.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 30.81ms. Allocated memory is still 165.7MB. Free memory was 111.9MB in the beginning and 109.8MB 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 VAL [i=0] Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 02:07:06,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)