./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/terminator_02-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 20:20:00,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 20:20:00,985 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-17 20:20:00,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 20:20:00,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 20:20:00,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 20:20:01,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 20:20:01,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 20:20:01,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 20:20:01,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 20:20:01,008 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 20:20:01,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 20:20:01,009 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 20:20:01,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 20:20:01,009 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 20:20:01,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 20:20:01,010 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 20:20:01,010 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 20:20:01,010 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 20:20:01,010 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 20:20:01,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 20:20:01,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 20:20:01,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 20:20:01,011 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 20:20:01,011 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b [2025-03-17 20:20:01,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 20:20:01,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 20:20:01,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 20:20:01,267 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 20:20:01,267 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 20:20:01,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-2.c [2025-03-17 20:20:01,773 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fbc4fd3/6f9b7697f0644814bdf513c24178c27b/FLAG8f6bd3ae6 [2025-03-17 20:20:02,240 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 20:20:02,246 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c [2025-03-17 20:20:02,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fbc4fd3/6f9b7697f0644814bdf513c24178c27b/FLAG8f6bd3ae6 [2025-03-17 20:20:04,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fbc4fd3/6f9b7697f0644814bdf513c24178c27b [2025-03-17 20:20:04,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 20:20:04,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 20:20:04,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 20:20:04,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 20:20:04,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 20:20:04,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698e87be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04, skipping insertion in model container [2025-03-17 20:20:04,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,304 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 20:20:04,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:20:04,416 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 20:20:04,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:20:04,439 INFO L204 MainTranslator]: Completed translation [2025-03-17 20:20:04,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04 WrapperNode [2025-03-17 20:20:04,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 20:20:04,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 20:20:04,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 20:20:04,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 20:20:04,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,459 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2025-03-17 20:20:04,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 20:20:04,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 20:20:04,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 20:20:04,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 20:20:04,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,475 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 20:20:04,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 20:20:04,481 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 20:20:04,481 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 20:20:04,481 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 20:20:04,481 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (1/1) ... [2025-03-17 20:20:04,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:04,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:04,511 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 20:20:04,514 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 20:20:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 20:20:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 20:20:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 20:20:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 20:20:04,574 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 20:20:04,575 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 20:20:04,666 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-17 20:20:04,667 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 20:20:04,672 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 20:20:04,673 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 20:20:04,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:20:04 BoogieIcfgContainer [2025-03-17 20:20:04,674 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 20:20:04,675 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 20:20:04,675 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 20:20:04,678 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 20:20:04,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:20:04,679 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 08:20:04" (1/3) ... [2025-03-17 20:20:04,680 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56ea4436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:20:04, skipping insertion in model container [2025-03-17 20:20:04,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:20:04,680 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:20:04" (2/3) ... [2025-03-17 20:20:04,681 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56ea4436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:20:04, skipping insertion in model container [2025-03-17 20:20:04,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:20:04,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:20:04" (3/3) ... [2025-03-17 20:20:04,682 INFO L363 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2025-03-17 20:20:04,721 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 20:20:04,721 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 20:20:04,722 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 20:20:04,722 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 20:20:04,722 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 20:20:04,722 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 20:20:04,722 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 20:20:04,722 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 20:20:04,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 20:20:04,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:04,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:20:04,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:20:04,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-17 20:20:04,737 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 20:20:04,738 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 20:20:04,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 20:20:04,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:04,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:20:04,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:20:04,739 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-17 20:20:04,739 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 20:20:04,743 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume !!(main_~x~0#1 > -100);" "assume !!(main_~x~0#1 < 200);" "assume !!(main_~z~0#1 > 100);" "assume !!(main_~z~0#1 < 200);" [2025-03-17 20:20:04,744 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;" "havoc main_~tmp~0#1;" [2025-03-17 20:20:04,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash 49589999, now seen corresponding path program 1 times [2025-03-17 20:20:04,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:04,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759391208] [2025-03-17 20:20:04,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:04,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:04,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 20:20:04,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 20:20:04,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,804 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:04,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 20:20:04,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 20:20:04,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:04,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash 38663, now seen corresponding path program 1 times [2025-03-17 20:20:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:04,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64590373] [2025-03-17 20:20:04,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:04,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:04,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:04,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,847 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:04,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:04,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:04,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:04,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash -133080743, now seen corresponding path program 1 times [2025-03-17 20:20:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472573763] [2025-03-17 20:20:04,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:04,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:20:04,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:20:04,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,878 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:04,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 20:20:04,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 20:20:04,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:04,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:04,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:04,995 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:04,995 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:04,995 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:04,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:04,995 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:20:04,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:04,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:04,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:04,996 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2025-03-17 20:20:04,996 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:04,996 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:05,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,058 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:05,058 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:20:05,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,062 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 20:20:05,063 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 20:20:05,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,080 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:05,080 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=0} Honda state: {ULTIMATE.start_main_~tmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:05,086 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 20:20:05,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,089 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 20:20:05,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,108 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 20:20:05,119 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 20:20:05,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,122 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 20:20:05,122 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 20:20:05,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:20:05,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,148 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:20:05,152 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 20:20:05,153 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:05,153 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:05,153 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:05,153 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:05,153 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:20:05,153 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,153 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:05,153 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:05,153 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2025-03-17 20:20:05,153 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:05,153 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:05,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,208 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:05,211 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:20:05,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,215 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 20:20:05,218 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 20:20:05,219 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 20:20:05,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:05,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:05,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:05,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:05,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:05,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:05,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:05,240 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:20:05,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:20:05,244 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:20:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,263 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 20:20:05,269 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 20:20:05,270 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:20:05,270 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:20:05,270 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:20:05,271 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2025-03-17 20:20:05,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:05,280 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:20:05,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:05,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 20:20:05,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 20:20:05,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:05,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:05,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:05,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:05,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:05,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:05,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:05,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:05,400 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 20:20:05,420 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 20:20:05,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2025-03-17 20:20:05,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 24 states and 34 transitions. Complement of second has 7 states. [2025-03-17 20:20:05,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2025-03-17 20:20:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2025-03-17 20:20:05,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-17 20:20:05,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:05,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 3 letters. [2025-03-17 20:20:05,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:05,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2025-03-17 20:20:05,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:05,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 34 transitions. [2025-03-17 20:20:05,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:05,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 18 transitions. [2025-03-17 20:20:05,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-03-17 20:20:05,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2025-03-17 20:20:05,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2025-03-17 20:20:05,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:20:05,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-17 20:20:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2025-03-17 20:20:05,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2025-03-17 20:20:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 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 20:20:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2025-03-17 20:20:05,511 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2025-03-17 20:20:05,511 INFO L432 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2025-03-17 20:20:05,512 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 20:20:05,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2025-03-17 20:20:05,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:05,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:20:05,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:20:05,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 20:20:05,512 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 20:20:05,513 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume !!(main_~x~0#1 > -100);" "assume !!(main_~x~0#1 < 200);" "assume !!(main_~z~0#1 > 100);" "assume !!(main_~z~0#1 < 200);" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;" [2025-03-17 20:20:05,513 INFO L754 eck$LassoCheckResult]: Loop: "havoc main_~tmp~0#1;" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;" [2025-03-17 20:20:05,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash 411349070, now seen corresponding path program 1 times [2025-03-17 20:20:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:05,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313005286] [2025-03-17 20:20:05,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:05,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:05,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 20:20:05,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 20:20:05,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,532 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:05,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 20:20:05,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 20:20:05,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash 35843, now seen corresponding path program 2 times [2025-03-17 20:20:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:05,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529307463] [2025-03-17 20:20:05,552 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 20:20:05,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:05,556 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:05,563 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:05,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 20:20:05,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,568 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:05,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:05,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:05,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:05,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 958454934, now seen corresponding path program 1 times [2025-03-17 20:20:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:05,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293020379] [2025-03-17 20:20:05,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:05,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:05,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:05,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:05,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,590 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:05,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:05,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:05,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:05,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:05,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:05,646 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:05,647 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:05,647 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:05,647 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:05,647 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:20:05,647 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,647 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:05,647 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:05,647 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2025-03-17 20:20:05,647 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:05,647 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:05,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,688 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:05,688 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:20:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,706 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 20:20:05,708 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 20:20:05,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,720 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:05,720 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=0} Honda state: {ULTIMATE.start_main_~tmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:05,726 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 20:20:05,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,729 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 20:20:05,731 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 20:20:05,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,753 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:05,753 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:05,758 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 [2025-03-17 20:20:05,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,760 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) [2025-03-17 20:20:05,761 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 [2025-03-17 20:20:05,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,774 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:05,774 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:05,783 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 [2025-03-17 20:20:05,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,785 INFO L229 MonitoredProcess]: Starting monitored process 10 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 20:20:05,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-17 20:20:05,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,799 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:05,799 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:05,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:05,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,807 INFO L229 MonitoredProcess]: Starting monitored process 11 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 20:20:05,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-17 20:20:05,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:05,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:05,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,831 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:20:05,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-17 20:20:05,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:20:05,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:05,855 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:20:05,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-03-17 20:20:05,859 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:05,859 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:05,859 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:05,859 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:05,859 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:20:05,859 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,859 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:05,859 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:05,859 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2025-03-17 20:20:05,859 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:05,859 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:05,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:05,903 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:05,903 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:20:05,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,936 INFO L229 MonitoredProcess]: Starting monitored process 13 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 20:20:05,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-17 20:20:05,937 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 20:20:05,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:05,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:05,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:05,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:05,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:05,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:05,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:05,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:05,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-17 20:20:05,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,957 INFO L229 MonitoredProcess]: Starting monitored process 14 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 20:20:05,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-17 20:20:05,960 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 20:20:05,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:05,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:05,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:05,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:05,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:05,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:05,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:05,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:05,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:05,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:05,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:05,979 INFO L229 MonitoredProcess]: Starting monitored process 15 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 20:20:05,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-17 20:20:05,982 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 20:20:05,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:05,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:05,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:05,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:05,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:05,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:05,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:05,996 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:06,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,007 INFO L229 MonitoredProcess]: Starting monitored process 16 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 20:20:06,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-17 20:20:06,010 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 20:20:06,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:06,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:06,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:06,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:06,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:06,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:06,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:06,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:20:06,029 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:20:06,029 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:20:06,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,032 INFO L229 MonitoredProcess]: Starting monitored process 17 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 20:20:06,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-17 20:20:06,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:20:06,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:20:06,035 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:20:06,035 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2025-03-17 20:20:06,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,042 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:20:06,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 20:20:06,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 20:20:06,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,095 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 20:20:06,095 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 [2025-03-17 20:20:06,095 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 20:20:06,109 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 20 states and 25 transitions. Complement of second has 7 states. [2025-03-17 20:20:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 20:20:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2025-03-17 20:20:06,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-17 20:20:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:06,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-17 20:20:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:06,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2025-03-17 20:20:06,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:06,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2025-03-17 20:20:06,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:06,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 25 transitions. [2025-03-17 20:20:06,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-03-17 20:20:06,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2025-03-17 20:20:06,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2025-03-17 20:20:06,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:20:06,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 20:20:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2025-03-17 20:20:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-03-17 20:20:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 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 20:20:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2025-03-17 20:20:06,113 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 20:20:06,113 INFO L432 stractBuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 20:20:06,113 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 20:20:06,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2025-03-17 20:20:06,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-17 20:20:06,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:20:06,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:20:06,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 20:20:06,114 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 20:20:06,114 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume !!(main_~x~0#1 > -100);" "assume !!(main_~x~0#1 < 200);" "assume !!(main_~z~0#1 > 100);" "assume !!(main_~z~0#1 < 200);" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;" "havoc main_~tmp~0#1;" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;" [2025-03-17 20:20:06,114 INFO L754 eck$LassoCheckResult]: Loop: "havoc main_~tmp~0#1;" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;" [2025-03-17 20:20:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash 958454935, now seen corresponding path program 1 times [2025-03-17 20:20:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404428864] [2025-03-17 20:20:06,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:06,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:06,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:06,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,142 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:06,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:06,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:06,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:06,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,162 INFO L85 PathProgramCache]: Analyzing trace with hash 35843, now seen corresponding path program 3 times [2025-03-17 20:20:06,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:06,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150020005] [2025-03-17 20:20:06,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 20:20:06,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:06,166 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,171 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 20:20:06,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,171 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:06,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:06,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,178 INFO L85 PathProgramCache]: Analyzing trace with hash 388390829, now seen corresponding path program 2 times [2025-03-17 20:20:06,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:06,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653265974] [2025-03-17 20:20:06,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 20:20:06,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:06,187 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-03-17 20:20:06,199 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 20:20:06,199 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 20:20:06,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,199 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:06,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 20:20:06,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 20:20:06,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:06,220 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:06,298 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:06,298 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:06,299 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:06,299 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:06,299 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:20:06,299 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,299 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:06,299 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:06,299 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2025-03-17 20:20:06,299 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:06,299 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:06,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,339 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:06,339 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:20:06,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,369 INFO L229 MonitoredProcess]: Starting monitored process 18 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 20:20:06,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-17 20:20:06,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:06,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:06,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,405 INFO L229 MonitoredProcess]: Starting monitored process 19 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 20:20:06,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-17 20:20:06,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:20:06,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:06,431 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:20:06,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,435 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:06,435 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:06,435 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:06,435 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:06,435 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:20:06,435 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,435 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:06,435 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:06,435 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2025-03-17 20:20:06,435 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:06,435 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:06,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,457 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:06,528 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:06,528 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:20:06,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,537 INFO L229 MonitoredProcess]: Starting monitored process 20 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 20:20:06,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-03-17 20:20:06,543 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 20:20:06,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:06,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:06,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:06,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:06,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:06,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:06,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:06,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:20:06,563 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:20:06,563 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:20:06,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:06,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:06,567 INFO L229 MonitoredProcess]: Starting monitored process 21 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 20:20:06,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:20:06,634 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:20:06,634 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:20:06,634 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2025-03-17 20:20:06,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-03-17 20:20:06,640 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 [2025-03-17 20:20:06,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,643 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:20:06,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:06,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:06,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:06,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,754 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 20:20:06,755 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 [2025-03-17 20:20:06,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:06,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 24 states and 31 transitions. Complement of second has 7 states. [2025-03-17 20:20:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:06,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:06,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2025-03-17 20:20:06,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-17 20:20:06,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:06,780 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 20:20:06,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:06,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:06,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,875 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 20:20:06,876 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-17 20:20:06,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:06,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 24 states and 31 transitions. Complement of second has 7 states. [2025-03-17 20:20:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2025-03-17 20:20:06,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-17 20:20:06,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:06,909 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 20:20:06,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:06,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 20:20:06,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 20:20:06,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:06,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:06,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:06,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:06,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:06,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:06,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:07,000 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 20:20:07,001 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-17 20:20:07,001 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:07,025 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 27 states and 35 transitions. Complement of second has 6 states. [2025-03-17 20:20:07,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20:20:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2025-03-17 20:20:07,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-17 20:20:07,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:07,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 3 letters. [2025-03-17 20:20:07,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:07,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2025-03-17 20:20:07,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:07,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2025-03-17 20:20:07,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-17 20:20:07,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 29 transitions. [2025-03-17 20:20:07,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2025-03-17 20:20:07,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2025-03-17 20:20:07,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2025-03-17 20:20:07,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 20:20:07,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2025-03-17 20:20:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2025-03-17 20:20:07,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 12. [2025-03-17 20:20:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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 20:20:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2025-03-17 20:20:07,040 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2025-03-17 20:20:07,040 INFO L432 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2025-03-17 20:20:07,040 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 20:20:07,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2025-03-17 20:20:07,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-17 20:20:07,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:20:07,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:20:07,041 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-17 20:20:07,041 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 20:20:07,041 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" "assume !!(main_~x~0#1 > -100);" "assume !!(main_~x~0#1 < 200);" "assume !!(main_~z~0#1 > 100);" "assume !!(main_~z~0#1 < 200);" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" [2025-03-17 20:20:07,041 INFO L754 eck$LassoCheckResult]: Loop: "assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;" "havoc main_~tmp~0#1;" "assume main_~x~0#1 < 100 && main_~z~0#1 > 100;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~tmp~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" [2025-03-17 20:20:07,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1537289978, now seen corresponding path program 1 times [2025-03-17 20:20:07,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:07,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232345298] [2025-03-17 20:20:07,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:07,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:07,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:20:07,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:20:07,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:07,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,051 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:07,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:20:07,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:20:07,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:07,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:07,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash 37674, now seen corresponding path program 1 times [2025-03-17 20:20:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:07,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908014091] [2025-03-17 20:20:07,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:20:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:07,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:07,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:07,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:07,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,084 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:07,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:07,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:07,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:07,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:07,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash 169465233, now seen corresponding path program 2 times [2025-03-17 20:20:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:20:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980610736] [2025-03-17 20:20:07,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 20:20:07,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:20:07,105 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 9 statements into 2 equivalence classes. [2025-03-17 20:20:07,114 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 20:20:07,117 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 20:20:07,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,117 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:20:07,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 20:20:07,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 20:20:07,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:07,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:20:07,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:20:07,278 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:07,278 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:07,279 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:07,279 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:07,279 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:20:07,279 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,279 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:07,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:07,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2025-03-17 20:20:07,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:07,279 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:07,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:07,554 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:07,558 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:20:07,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,578 INFO L229 MonitoredProcess]: Starting monitored process 22 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 20:20:07,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-03-17 20:20:07,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,623 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:07,623 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post9#1=0} Honda state: {ULTIMATE.start_main_#t~post9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:07,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:07,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,644 INFO L229 MonitoredProcess]: Starting monitored process 23 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 20:20:07,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-03-17 20:20:07,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-03-17 20:20:07,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,673 INFO L229 MonitoredProcess]: Starting monitored process 24 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 20:20:07,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-03-17 20:20:07,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:20:07,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,718 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:07,718 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=50} Honda state: {ULTIMATE.start_main_~x~0#1=50} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 127, 0] Nus: [0, 0] [2025-03-17 20:20:07,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:07,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,728 INFO L229 MonitoredProcess]: Starting monitored process 25 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 20:20:07,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-03-17 20:20:07,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,777 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:07,777 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:07,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:07,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,786 INFO L229 MonitoredProcess]: Starting monitored process 26 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 20:20:07,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-17 20:20:07,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,799 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:07,799 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:07,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-03-17 20:20:07,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,807 INFO L229 MonitoredProcess]: Starting monitored process 27 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 20:20:07,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-17 20:20:07,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,849 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:20:07,849 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=0} Honda state: {ULTIMATE.start_main_~tmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:20:07,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:07,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,866 INFO L229 MonitoredProcess]: Starting monitored process 28 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 20:20:07,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:20:07,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:07,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-03-17 20:20:07,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:07,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:07,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:07,959 INFO L229 MonitoredProcess]: Starting monitored process 29 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 20:20:07,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-03-17 20:20:07,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:20:07,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:20:08,004 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:20:08,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:08,009 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:20:08,009 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:20:08,009 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:20:08,009 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:20:08,009 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:20:08,009 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,009 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:20:08,009 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:20:08,013 INFO L132 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2025-03-17 20:20:08,013 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:20:08,013 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:20:08,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:20:08,137 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:20:08,137 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:20:08,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,139 INFO L229 MonitoredProcess]: Starting monitored process 30 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 20:20:08,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-03-17 20:20:08,142 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 20:20:08,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:08,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:08,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,154 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:08,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:08,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,163 INFO L229 MonitoredProcess]: Starting monitored process 31 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 20:20:08,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-03-17 20:20:08,164 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 20:20:08,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:08,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:08,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,177 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:08,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-03-17 20:20:08,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,184 INFO L229 MonitoredProcess]: Starting monitored process 32 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 20:20:08,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-03-17 20:20:08,186 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 20:20:08,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:08,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:08,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,197 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:08,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:08,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,205 INFO L229 MonitoredProcess]: Starting monitored process 33 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 20:20:08,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-03-17 20:20:08,207 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 20:20:08,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,217 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-17 20:20:08,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,219 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-17 20:20:08,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,221 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:08,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:08,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,229 INFO L229 MonitoredProcess]: Starting monitored process 34 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 20:20:08,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-03-17 20:20:08,230 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 20:20:08,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:08,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:08,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,243 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:20:08,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-03-17 20:20:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,252 INFO L229 MonitoredProcess]: Starting monitored process 35 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 20:20:08,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-03-17 20:20:08,253 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 20:20:08,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:20:08,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:20:08,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:20:08,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:20:08,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:20:08,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:20:08,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:20:08,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:20:08,268 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:20:08,268 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 20:20:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:20:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:20:08,273 INFO L229 MonitoredProcess]: Starting monitored process 36 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 20:20:08,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-03-17 20:20:08,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:20:08,275 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:20:08,275 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:20:08,275 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 20:20:08,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-03-17 20:20:08,283 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:20:08,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:20:08,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:20:08,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:20:08,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:08,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:08,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:20:08,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:08,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 20:20:08,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 20:20:08,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:20:08,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:20:08,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 20:20:08,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:20:08,323 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 20:20:08,324 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 [2025-03-17 20:20:08,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:20:08,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 42 transitions. Complement of second has 6 states. [2025-03-17 20:20:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 20:20:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:20:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2025-03-17 20:20:08,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 3 letters. [2025-03-17 20:20:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:08,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2025-03-17 20:20:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:08,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 6 letters. [2025-03-17 20:20:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:20:08,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2025-03-17 20:20:08,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:20:08,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2025-03-17 20:20:08,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 20:20:08,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 20:20:08,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 20:20:08,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 20:20:08,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:20:08,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:20:08,341 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:20:08,341 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-17 20:20:08,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 20:20:08,341 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:20:08,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 20:20:08,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 08:20:08 BoogieIcfgContainer [2025-03-17 20:20:08,348 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 20:20:08,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 20:20:08,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 20:20:08,348 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 20:20:08,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:20:04" (3/4) ... [2025-03-17 20:20:08,350 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 20:20:08,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 20:20:08,352 INFO L158 Benchmark]: Toolchain (without parser) took 4063.75ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 48.2MB in the end (delta: 39.4MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2025-03-17 20:20:08,352 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:20:08,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.95ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 76.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 20:20:08,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.00ms. Allocated memory is still 142.6MB. Free memory was 76.8MB in the beginning and 75.9MB in the end (delta: 940.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:20:08,353 INFO L158 Benchmark]: Boogie Preprocessor took 19.76ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 74.4MB in the end (delta: 993.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:20:08,353 INFO L158 Benchmark]: IcfgBuilder took 193.37ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 63.6MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 20:20:08,353 INFO L158 Benchmark]: BuchiAutomizer took 3673.15ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 48.9MB in the end (delta: 14.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2025-03-17 20:20:08,353 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 48.2MB in the end (delta: 725.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:20:08,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.95ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 76.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.00ms. Allocated memory is still 142.6MB. Free memory was 76.8MB in the beginning and 75.9MB in the end (delta: 940.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.76ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 74.4MB in the end (delta: 993.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 193.37ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 63.6MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3673.15ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 48.9MB in the end (delta: 14.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 142.6MB. Free memory was 48.9MB in the beginning and 48.2MB in the end (delta: 725.5kB). 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (199 + ((long long) -2 * x)) and consists of 4 locations. One deterministic module has affine ranking function (199 + ((long long) -2 * x)) and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function (199 + ((long long) -2 * x)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div166 bol100 ite100 ukn100 eq158 hnf94 smp87 dnf112 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 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 20:20:08,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-03-17 20:20:08,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-03-17 20:20:08,768 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