./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/counting-bits-set.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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-bwb/counting-bits-set.i -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 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:33:16,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:33:16,856 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-04 15:33:16,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:33:16,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:33:16,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:33:16,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:33:16,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:33:16,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:33:16,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:33:16,889 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:33:16,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:33:16,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:33:16,890 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:33:16,890 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:33:16,890 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:33:16,890 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:33:16,890 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:33:16,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:33:16,891 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:33:16,892 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:33:16,892 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:33:16,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:33:16,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:33:16,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:33:16,892 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:33:16,893 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/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 -> 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 [2025-03-04 15:33:17,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:33:17,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:33:17,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:33:17,103 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:33:17,104 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:33:17,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/counting-bits-set.i [2025-03-04 15:33:18,210 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6eda8905/2731addef57f4bbda20f37d2a52f6769/FLAGc3aca91cc [2025-03-04 15:33:18,426 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:33:18,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-set.i [2025-03-04 15:33:18,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6eda8905/2731addef57f4bbda20f37d2a52f6769/FLAGc3aca91cc [2025-03-04 15:33:18,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6eda8905/2731addef57f4bbda20f37d2a52f6769 [2025-03-04 15:33:18,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:33:18,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:33:18,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:33:18,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:33:18,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:33:18,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12dc011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18, skipping insertion in model container [2025-03-04 15:33:18,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:33:18,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:33:18,906 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:33:18,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:33:18,921 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:33:18,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18 WrapperNode [2025-03-04 15:33:18,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:33:18,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:33:18,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:33:18,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:33:18,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,939 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2025-03-04 15:33:18,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:33:18,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:33:18,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:33:18,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:33:18,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,950 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 15:33:18,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:33:18,953 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:33:18,953 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:33:18,953 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:33:18,954 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (1/1) ... [2025-03-04 15:33:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:18,976 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) [2025-03-04 15:33:18,978 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 [2025-03-04 15:33:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:33:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:33:19,025 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:33:19,026 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:33:19,091 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-03-04 15:33:19,091 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:33:19,096 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:33:19,096 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:33:19,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:19 BoogieIcfgContainer [2025-03-04 15:33:19,097 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:33:19,097 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:33:19,097 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:33:19,101 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:33:19,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:19,101 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:33:18" (1/3) ... [2025-03-04 15:33:19,102 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b97473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:33:19, skipping insertion in model container [2025-03-04 15:33:19,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:19,102 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:18" (2/3) ... [2025-03-04 15:33:19,102 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b97473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:33:19, skipping insertion in model container [2025-03-04 15:33:19,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:19,102 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:19" (3/3) ... [2025-03-04 15:33:19,103 INFO L363 chiAutomizerObserver]: Analyzing ICFG counting-bits-set.i [2025-03-04 15:33:19,135 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:33:19,135 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:33:19,135 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:33:19,135 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:33:19,135 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:33:19,135 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:33:19,135 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:33:19,135 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:33:19,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2025-03-04 15:33:19,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:33:19,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:19,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:19,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:33:19,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:33:19,151 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:33:19,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2025-03-04 15:33:19,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-04 15:33:19,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:19,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:19,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:33:19,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:33:19,157 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume ~v~0 >= 0;~c~0 := 0;" [2025-03-04 15:33:19,157 INFO L754 eck$LassoCheckResult]: Loop: "assume 0 != ~v~0;~z~0 := ~v~0 % 2;~c~0 := ~c~0 + ~z~0;~v~0 := ~v~0 / 2;" [2025-03-04 15:33:19,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash 37701, now seen corresponding path program 1 times [2025-03-04 15:33:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653588093] [2025-03-04 15:33:19,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:19,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:19,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:19,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,213 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:19,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:19,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:19,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:19,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-03-04 15:33:19,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:19,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007789817] [2025-03-04 15:33:19,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:19,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:33:19,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:33:19,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,249 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:19,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:33:19,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:33:19,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:19,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:19,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1168735, now seen corresponding path program 1 times [2025-03-04 15:33:19,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:19,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839998395] [2025-03-04 15:33:19,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:19,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:19,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:33:19,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:33:19,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,273 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:19,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:33:19,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:33:19,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:19,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:19,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:19,351 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:19,351 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:19,351 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:19,352 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:19,352 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:19,352 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:19,353 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:19,353 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:19,353 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration1_Loop [2025-03-04 15:33:19,353 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:19,354 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:19,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:19,535 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:19,536 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:19,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:19,541 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2025-03-04 15:33:19,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 15:33:19,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:19,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:19,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-04 15:33:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:19,586 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2025-03-04 15:33:19,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 15:33:19,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:19,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:19,864 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:19,864 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~v~0=-1, ~c~0=0, ~z~0=1} Honda state: {~v~0=-1, ~c~0=0, ~z~0=1} Generalized eigenvectors: [{~v~0=0, ~c~0=-1, ~z~0=0}, {~v~0=0, ~c~0=-1, ~z~0=0}, {~v~0=0, ~c~0=3, ~z~0=0}] Lambdas: [0, 4, 1] Nus: [1, 1] [2025-03-04 15:33:19,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:19,907 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:19,907 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:19,907 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:19,907 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:19,907 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:19,907 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:19,907 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:19,907 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:19,907 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration1_Lasso [2025-03-04 15:33:19,907 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:19,907 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:19,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:19,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:19,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:19,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:19,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,078 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:20,078 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:20,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,082 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2025-03-04 15:33:20,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 15:33:20,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:20,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:20,095 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:20,096 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~y~0=0} Honda state: {~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 15:33:20,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,104 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2025-03-04 15:33:20,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 15:33:20,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:20,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:20,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-04 15:33:20,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,169 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2025-03-04 15:33:20,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 15:33:20,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:20,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:20,337 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:33:20,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:20,345 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:20,345 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:20,345 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:20,345 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:20,345 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:33:20,345 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,345 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:20,345 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:20,345 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration1_Lasso [2025-03-04 15:33:20,345 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:20,345 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:20,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:20,495 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:20,499 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:33:20,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,504 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2025-03-04 15:33:20,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 15:33:20,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:20,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:20,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:20,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:20,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:20,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:20,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:20,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:20,528 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:20,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:20,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,537 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2025-03-04 15:33:20,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 15:33:20,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:20,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:20,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:20,549 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-04 15:33:20,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:20,571 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-03-04 15:33:20,571 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-03-04 15:33:20,595 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:33:20,623 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2025-03-04 15:33:20,625 INFO L444 ModelExtractionUtils]: 12 out of 21 variables were initially zero. Simplification set additionally 5 variables to zero. [2025-03-04 15:33:20,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:20,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:20,629 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2025-03-04 15:33:20,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 15:33:20,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:33:20,645 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2025-03-04 15:33:20,645 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:33:20,646 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [1*~v~0 >= 0] [2025-03-04 15:33:20,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:20,659 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-03-04 15:33:20,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:20,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:20,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:20,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:20,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:20,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:33:20,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:20,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:33:20,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:33:20,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:20,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:20,716 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:33:20,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:20,739 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:33:20,740 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-04 15:33:20,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) Result 17 states and 19 transitions. Complement of second has 4 states. [2025-03-04 15:33:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-04 15:33:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-04 15:33:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2025-03-04 15:33:20,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 1 letters. [2025-03-04 15:33:20,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:20,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2025-03-04 15:33:20,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:20,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2025-03-04 15:33:20,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:20,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2025-03-04 15:33:20,784 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:33:20,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2025-03-04 15:33:20,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:33:20,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:33:20,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:33:20,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:33:20,787 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:20,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:20,787 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:20,787 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:33:20,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:33:20,788 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:33:20,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:33:20,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:33:20 BoogieIcfgContainer [2025-03-04 15:33:20,794 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:33:20,795 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:33:20,795 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:33:20,795 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:33:20,796 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:19" (3/4) ... [2025-03-04 15:33:20,797 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:33:20,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:33:20,800 INFO L158 Benchmark]: Toolchain (without parser) took 2004.68ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 85.3MB in the end (delta: 28.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2025-03-04 15:33:20,801 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:20,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 124.16ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 102.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:33:20,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.90ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.6MB in the end (delta: 952.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:20,802 INFO L158 Benchmark]: Boogie Preprocessor took 11.77ms. Allocated memory is still 142.6MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:20,803 INFO L158 Benchmark]: IcfgBuilder took 143.84ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 91.5MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:33:20,803 INFO L158 Benchmark]: BuchiAutomizer took 1697.11ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 85.3MB in the end (delta: 6.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2025-03-04 15:33:20,803 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 85.3MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:20,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 124.16ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 102.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.90ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.6MB in the end (delta: 952.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.77ms. Allocated memory is still 142.6MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 143.84ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 91.5MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1697.11ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 85.3MB in the end (delta: 6.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 85.3MB in the end (delta: 41.6kB). 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div374 bol100 ite100 ukn100 eq139 hnf95 smp49 dnf170 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 111ms VariablesStem: 3 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:33:20,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-04 15:33:21,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Result: TRUE