./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed 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-restricted-15/Ex03.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 b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:49:30,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:49:30,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 06:49:30,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:49:30,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:49:30,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 06:49:30,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:49:30,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:49:30,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:49:30,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:49:30,543 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:49:30,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:49:30,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:49:30,544 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 06:49:30,544 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 06:49:30,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:49:30,545 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:49:30,546 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:49:30,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:49:30,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:49:30,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:49:30,546 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 06:49:30,546 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 -> b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a [2025-03-09 06:49:30,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:49:30,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:49:30,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:49:30,796 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:49:30,797 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:49:30,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex03.c [2025-03-09 06:49:31,877 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1842e755f/bab3afc44fc542858b01e0d5896f364a/FLAG0983cdb8a [2025-03-09 06:49:32,071 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:49:32,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.c [2025-03-09 06:49:32,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1842e755f/bab3afc44fc542858b01e0d5896f364a/FLAG0983cdb8a [2025-03-09 06:49:32,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1842e755f/bab3afc44fc542858b01e0d5896f364a [2025-03-09 06:49:32,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:49:32,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:49:32,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:49:32,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:49:32,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:49:32,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebfa1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32, skipping insertion in model container [2025-03-09 06:49:32,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:49:32,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:49:32,552 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:49:32,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:49:32,568 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:49:32,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32 WrapperNode [2025-03-09 06:49:32,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:49:32,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:49:32,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:49:32,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:49:32,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,583 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2025-03-09 06:49:32,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:49:32,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:49:32,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:49:32,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:49:32,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,592 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 06:49:32,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:49:32,596 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:49:32,596 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:49:32,596 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:49:32,596 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (1/1) ... [2025-03-09 06:49:32,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:32,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:32,624 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) [2025-03-09 06:49:32,628 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 [2025-03-09 06:49:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:49:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:49:32,697 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:49:32,698 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:49:32,750 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-03-09 06:49:32,750 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:49:32,755 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:49:32,757 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:49:32,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:49:32 BoogieIcfgContainer [2025-03-09 06:49:32,757 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:49:32,758 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 06:49:32,758 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 06:49:32,762 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 06:49:32,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:49:32,763 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 06:49:32" (1/3) ... [2025-03-09 06:49:32,764 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e85481e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:49:32, skipping insertion in model container [2025-03-09 06:49:32,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:49:32,765 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:49:32" (2/3) ... [2025-03-09 06:49:32,765 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e85481e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:49:32, skipping insertion in model container [2025-03-09 06:49:32,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:49:32,766 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:49:32" (3/3) ... [2025-03-09 06:49:32,767 INFO L363 chiAutomizerObserver]: Analyzing ICFG Ex03.c [2025-03-09 06:49:32,811 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 06:49:32,811 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 06:49:32,812 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 06:49:32,812 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 06:49:32,812 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 06:49:32,812 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 06:49:32,813 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 06:49:32,813 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 06:49:32,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:49:32,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:49:32,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:49:32,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:49:32,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:49:32,832 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 06:49:32,832 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 06:49:32,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:49:32,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:49:32,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:49:32,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:49:32,834 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:49:32,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 06:49:32,840 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-03-09 06:49:32,841 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 0;" "assume -5 != main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2025-03-09 06:49:32,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-03-09 06:49:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:32,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556318500] [2025-03-09 06:49:32,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:32,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:32,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:32,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:32,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,907 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:32,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:32,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:32,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:32,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2025-03-09 06:49:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:32,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813942843] [2025-03-09 06:49:32,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:32,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:32,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:32,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,936 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:32,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:32,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:32,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:32,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:32,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1137982, now seen corresponding path program 1 times [2025-03-09 06:49:32,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:32,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898934709] [2025-03-09 06:49:32,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:32,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:32,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:49:32,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:49:32,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,954 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:32,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:49:32,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:49:32,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:32,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:32,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:33,015 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:49:33,016 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:49:33,016 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:49:33,016 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:49:33,016 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:49:33,016 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,016 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:49:33,016 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:49:33,017 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2025-03-09 06:49:33,017 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:49:33,017 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:49:33,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,133 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:49:33,133 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:49:33,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,137 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) [2025-03-09 06:49:33,139 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 [2025-03-09 06:49:33,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:49:33,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:49:33,161 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:49:33,162 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:49:33,167 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 [2025-03-09 06:49:33,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,170 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) [2025-03-09 06:49:33,171 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 [2025-03-09 06:49:33,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:49:33,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:49:33,189 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:49:33,190 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:49:33,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-09 06:49:33,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,197 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) [2025-03-09 06:49:33,198 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 [2025-03-09 06:49:33,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:49:33,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:49:33,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-09 06:49:33,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,217 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) [2025-03-09 06:49:33,219 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 [2025-03-09 06:49:33,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:49:33,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:49:33,246 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:49:33,250 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 [2025-03-09 06:49:33,250 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:49:33,251 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:49:33,251 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:49:33,251 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:49:33,251 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:49:33,251 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,251 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:49:33,251 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:49:33,251 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2025-03-09 06:49:33,251 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:49:33,251 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:49:33,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:49:33,335 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:49:33,339 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:49:33,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,342 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) [2025-03-09 06:49:33,343 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 [2025-03-09 06:49:33,345 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 [2025-03-09 06:49:33,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:49:33,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:49:33,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:49:33,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:49:33,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:49:33,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:49:33,375 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:49:33,382 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 [2025-03-09 06:49:33,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,385 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) [2025-03-09 06:49:33,386 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 [2025-03-09 06:49:33,387 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 [2025-03-09 06:49:33,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:49:33,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:49:33,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:49:33,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:49:33,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:49:33,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:49:33,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:49:33,409 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 [2025-03-09 06:49:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,411 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) [2025-03-09 06:49:33,412 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 [2025-03-09 06:49:33,414 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 [2025-03-09 06:49:33,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:49:33,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:49:33,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:49:33,424 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 06:49:33,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:49:33,426 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 06:49:33,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:49:33,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:49:33,431 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-09 06:49:33,433 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:49:33,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:49:33,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:49:33,436 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) [2025-03-09 06:49:33,438 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 [2025-03-09 06:49:33,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:49:33,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:49:33,440 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:49:33,440 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-03-09 06:49:33,447 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 [2025-03-09 06:49:33,450 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:49:33,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:33,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:33,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:33,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:49:33,480 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:49:33,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:49:33,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:33,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:33,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:49:33,492 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:49:33,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:49:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:49:33,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:49:33,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 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) [2025-03-09 06:49:33,574 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 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) Result 15 states and 19 transitions. Complement of second has 6 states. [2025-03-09 06:49:33,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:49:33,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 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) [2025-03-09 06:49:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2025-03-09 06:49:33,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2025-03-09 06:49:33,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:49:33,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2025-03-09 06:49:33,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:49:33,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2025-03-09 06:49:33,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:49:33,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2025-03-09 06:49:33,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:49:33,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 9 states and 12 transitions. [2025-03-09 06:49:33,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-03-09 06:49:33,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2025-03-09 06:49:33,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2025-03-09 06:49:33,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:49:33,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-03-09 06:49:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2025-03-09 06:49:33,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-03-09 06:49:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2025-03-09 06:49:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2025-03-09 06:49:33,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-09 06:49:33,606 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-09 06:49:33,606 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 06:49:33,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2025-03-09 06:49:33,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:49:33,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:49:33,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:49:33,607 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-09 06:49:33,607 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 06:49:33,607 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~i~0#1 < 0;" [2025-03-09 06:49:33,607 INFO L754 eck$LassoCheckResult]: Loop: "assume !(-5 != main_~i~0#1);" "assume main_~i~0#1 < 0;" [2025-03-09 06:49:33,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:33,607 INFO L85 PathProgramCache]: Analyzing trace with hash 36709, now seen corresponding path program 1 times [2025-03-09 06:49:33,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:33,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528263897] [2025-03-09 06:49:33,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:33,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:33,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:49:33,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:49:33,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,610 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:33,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:49:33,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:49:33,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:33,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1090, now seen corresponding path program 1 times [2025-03-09 06:49:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:33,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611487877] [2025-03-09 06:49:33,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:33,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:33,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:33,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,616 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:33,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:49:33,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:49:33,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:33,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:49:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash 35277478, now seen corresponding path program 1 times [2025-03-09 06:49:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:49:33,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123681533] [2025-03-09 06:49:33,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:49:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:49:33,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:49:33,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:49:33,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,620 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:33,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:49:33,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:49:33,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:49:33,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:49:33,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:49:33,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,642 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:49:33,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:49:33,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:49:33,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:49:33,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:49:33,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 06:49:33 BoogieIcfgContainer [2025-03-09 06:49:33,658 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 06:49:33,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:49:33,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:49:33,659 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:49:33,659 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:49:32" (3/4) ... [2025-03-09 06:49:33,660 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 06:49:33,680 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:49:33,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:49:33,680 INFO L158 Benchmark]: Toolchain (without parser) took 1228.46ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 43.1MB in the end (delta: 78.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 115.03ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 111.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.63ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.4MB in the end (delta: 941.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: Boogie Preprocessor took 10.77ms. Allocated memory is still 167.8MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: IcfgBuilder took 161.82ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 100.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:49:33,681 INFO L158 Benchmark]: BuchiAutomizer took 899.94ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 45.9MB in the end (delta: 54.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-09 06:49:33,682 INFO L158 Benchmark]: Witness Printer took 21.62ms. Allocated memory is still 167.8MB. Free memory was 45.9MB in the beginning and 43.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:49:33,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 115.03ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 111.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.63ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.4MB in the end (delta: 941.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.77ms. Allocated memory is still 167.8MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 161.82ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 100.3MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 899.94ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 45.9MB in the end (delta: 54.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 21.62ms. Allocated memory is still 167.8MB. Free memory was 45.9MB in the beginning and 43.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((long) -1 * i) and consists of 4 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf96 smp100 dnf151 smp88 tf105 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 0 VAL [i=-5] Loop: [L10] COND FALSE !(i != -5) [L9] COND TRUE i < 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 0 VAL [i=-5] Loop: [L10] COND FALSE !(i != -5) [L9] COND TRUE i < 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 06:49:33,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:49:33,897 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)