./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.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 0caa59e1faf0ad3d2791737919ecbef32e653ee10212e2c418a84055594f6a3c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:51:05,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:51:05,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:51:05,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:51:05,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:51:05,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:51:05,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:51:05,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:51:05,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:51:05,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:51:05,782 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:51:05,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:51:05,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:51:05,783 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:51:05,783 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:51:05,783 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:51:05,783 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:51:05,783 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:51:05,783 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:51:05,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:51:05,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:51:05,785 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:51:05,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:51:05,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:51:05,785 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:51:05,785 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 -> 0caa59e1faf0ad3d2791737919ecbef32e653ee10212e2c418a84055594f6a3c [2025-03-17 19:51:06,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:51:06,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:51:06,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:51:06,047 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:51:06,047 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:51:06,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2025-03-17 19:51:07,236 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463dc268b/3cd8995b9118497ea44c008be1d413c7/FLAG8f0a63ee1 [2025-03-17 19:51:07,430 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:51:07,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2025-03-17 19:51:07,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463dc268b/3cd8995b9118497ea44c008be1d413c7/FLAG8f0a63ee1 [2025-03-17 19:51:07,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/463dc268b/3cd8995b9118497ea44c008be1d413c7 [2025-03-17 19:51:07,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:51:07,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:51:07,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:51:07,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:51:07,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:51:07,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dcf7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07, skipping insertion in model container [2025-03-17 19:51:07,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:51:07,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:51:07,623 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:51:07,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:51:07,641 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:51:07,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07 WrapperNode [2025-03-17 19:51:07,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:51:07,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:51:07,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:51:07,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:51:07,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,660 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2025-03-17 19:51:07,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:51:07,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:51:07,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:51:07,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:51:07,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,672 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 19:51:07,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:51:07,676 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:51:07,676 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:51:07,676 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:51:07,678 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (1/1) ... [2025-03-17 19:51:07,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:07,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:07,710 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) [2025-03-17 19:51:07,716 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 [2025-03-17 19:51:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:51:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:51:07,765 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:51:07,766 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:51:07,828 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-03-17 19:51:07,829 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:51:07,835 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:51:07,835 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:51:07,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:51:07 BoogieIcfgContainer [2025-03-17 19:51:07,836 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:51:07,837 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:51:07,837 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:51:07,841 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:51:07,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:51:07,842 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:51:07" (1/3) ... [2025-03-17 19:51:07,843 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab558d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:51:07, skipping insertion in model container [2025-03-17 19:51:07,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:51:07,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:51:07" (2/3) ... [2025-03-17 19:51:07,843 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab558d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:51:07, skipping insertion in model container [2025-03-17 19:51:07,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:51:07,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:51:07" (3/3) ... [2025-03-17 19:51:07,844 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2025-03-17 19:51:07,888 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:51:07,888 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:51:07,888 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:51:07,888 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:51:07,889 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:51:07,889 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:51:07,889 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:51:07,889 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:51:07,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:51:07,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:51:07,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:51:07,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:51:07,907 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:51:07,907 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-17 19:51:07,907 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:51:07,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:51:07,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:51:07,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:51:07,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:51:07,907 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:51:07,907 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-17 19:51:07,912 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := 0;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-03-17 19:51:07,912 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~z~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~y~0#1 - 1;main_~z~0#1 := main_~z~0#1 - 1;" [2025-03-17 19:51:07,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:51:07,915 INFO L85 PathProgramCache]: Analyzing trace with hash 33, now seen corresponding path program 1 times [2025-03-17 19:51:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:51:07,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160502811] [2025-03-17 19:51:07,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:51:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:51:07,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:07,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:07,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:07,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:07,975 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:51:07,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:07,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:07,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:07,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:07,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:51:07,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:51:07,995 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2025-03-17 19:51:07,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:51:07,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962021118] [2025-03-17 19:51:07,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:51:07,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:51:08,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:08,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:08,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:08,008 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:51:08,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:08,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:08,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:08,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:51:08,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:51:08,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2025-03-17 19:51:08,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:51:08,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117318616] [2025-03-17 19:51:08,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:51:08,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:51:08,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:51:08,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:51:08,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:08,030 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:51:08,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:51:08,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:51:08,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:51:08,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:51:08,106 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:51:08,107 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:51:08,107 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:51:08,107 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:51:08,107 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:51:08,108 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,108 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:51:08,108 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:51:08,108 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-easy2-2.c_Iteration1_Loop [2025-03-17 19:51:08,108 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:51:08,108 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:51:08,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,186 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:51:08,186 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:51:08,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,190 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) [2025-03-17 19:51:08,192 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 [2025-03-17 19:51:08,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:51:08,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:51:08,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-03-17 19:51:08,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,219 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) [2025-03-17 19:51:08,220 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 [2025-03-17 19:51:08,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:51:08,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:51:08,250 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:51:08,250 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-7}, {ULTIMATE.start_main_~x~0#1=7}] Lambdas: [8, 2, 1] Nus: [1, 1] [2025-03-17 19:51:08,256 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 [2025-03-17 19:51:08,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,258 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) [2025-03-17 19:51:08,260 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 [2025-03-17 19:51:08,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:51:08,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:51:08,278 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 [2025-03-17 19:51:08,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,281 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) [2025-03-17 19:51:08,282 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 [2025-03-17 19:51:08,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:51:08,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:51:08,307 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:51:08,311 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 [2025-03-17 19:51:08,311 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:51:08,312 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:51:08,312 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:51:08,312 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:51:08,312 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:51:08,312 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,312 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:51:08,312 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:51:08,312 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-easy2-2.c_Iteration1_Loop [2025-03-17 19:51:08,312 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:51:08,312 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:51:08,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:51:08,371 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:51:08,375 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:51:08,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,378 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) [2025-03-17 19:51:08,381 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 [2025-03-17 19:51:08,383 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 [2025-03-17 19:51:08,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:51:08,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:51:08,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:51:08,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:51:08,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:51:08,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:51:08,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:51:08,406 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:51:08,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-17 19:51:08,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,414 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) [2025-03-17 19:51:08,416 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 [2025-03-17 19:51:08,417 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 [2025-03-17 19:51:08,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:51:08,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:51:08,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:51:08,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:51:08,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:51:08,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:51:08,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:51:08,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:51:08,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:51:08,437 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:51:08,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:51:08,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:51:08,441 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) [2025-03-17 19:51:08,442 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 [2025-03-17 19:51:08,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:51:08,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:51:08,444 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:51:08,444 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2025-03-17 19:51:08,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-03-17 19:51:08,454 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:51:08,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:51:08,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:08,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:08,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:51:08,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:51:08,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:51:08,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:51:08,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:51:08,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:51:08,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:51:08,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:51:08,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:51:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:51:08,511 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 [2025-03-17 19:51:08,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:51:08,531 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5 states and 6 transitions. Complement of second has 3 states. [2025-03-17 19:51:08,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-17 19:51:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:51:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2025-03-17 19:51:08,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 1 letters. Loop has 1 letters. [2025-03-17 19:51:08,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:51:08,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 2 letters. Loop has 1 letters. [2025-03-17 19:51:08,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:51:08,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 1 letters. Loop has 2 letters. [2025-03-17 19:51:08,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:51:08,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 6 transitions. [2025-03-17 19:51:08,542 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:51:08,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2025-03-17 19:51:08,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:51:08,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:51:08,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:51:08,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:51:08,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:51:08,544 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:51:08,544 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:51:08,544 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:51:08,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:51:08,544 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:51:08,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:51:08,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:51:08 BoogieIcfgContainer [2025-03-17 19:51:08,551 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:51:08,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:51:08,552 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:51:08,552 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:51:08,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:51:07" (3/4) ... [2025-03-17 19:51:08,554 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:51:08,555 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:51:08,556 INFO L158 Benchmark]: Toolchain (without parser) took 1082.28ms. Allocated memory was 511.7MB in the beginning and 142.6MB in the end (delta: -369.1MB). Free memory was 484.5MB in the beginning and 57.8MB in the end (delta: 426.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 19:51:08,557 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:51:08,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.84ms. Allocated memory was 511.7MB in the beginning and 142.6MB in the end (delta: -369.1MB). Free memory was 484.5MB in the beginning and 105.3MB in the end (delta: 379.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:51:08,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.95ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.4MB in the end (delta: 902.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:51:08,558 INFO L158 Benchmark]: Boogie Preprocessor took 14.70ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.9MB in the end (delta: 474.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:51:08,558 INFO L158 Benchmark]: IcfgBuilder took 159.70ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 94.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:51:08,558 INFO L158 Benchmark]: BuchiAutomizer took 713.85ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 58.2MB in the end (delta: 36.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 19:51:08,558 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 57.8MB in the end (delta: 450.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:51:08,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.84ms. Allocated memory was 511.7MB in the beginning and 142.6MB in the end (delta: -369.1MB). Free memory was 484.5MB in the beginning and 105.3MB in the end (delta: 379.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.95ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.4MB in the end (delta: 902.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.70ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.9MB in the end (delta: 474.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 159.70ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 94.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 713.85ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 58.2MB in the end (delta: 36.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 57.8MB in the end (delta: 450.2kB). Peak memory consumption was 8.4MB. 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 z and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:51:08,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-17 19:51:08,775 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