./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.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 c5be25d34b5f565c0e61b447a9da3cd9d228084b5ddd898e062981f46972caa8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:25:26,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:25:26,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:25:26,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:25:26,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:25:26,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:25:26,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:25:26,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:25:26,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:25:26,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:25:26,770 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:25:26,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:25:26,771 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:25:26,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:25:26,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:25:26,772 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:25:26,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:25:26,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:25:26,772 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:25:26,772 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 -> c5be25d34b5f565c0e61b447a9da3cd9d228084b5ddd898e062981f46972caa8 [2025-03-04 16:25:26,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:25:26,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:25:26,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:25:26,996 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:25:26,996 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:25:26,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2025-03-04 16:25:28,179 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6f46e00/6d008f2d17864bc488877de9efafd7f8/FLAGa2135d55e [2025-03-04 16:25:28,398 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:25:28,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2025-03-04 16:25:28,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6f46e00/6d008f2d17864bc488877de9efafd7f8/FLAGa2135d55e [2025-03-04 16:25:28,423 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6f46e00/6d008f2d17864bc488877de9efafd7f8 [2025-03-04 16:25:28,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:25:28,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:25:28,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:25:28,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:25:28,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:25:28,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c29319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28, skipping insertion in model container [2025-03-04 16:25:28,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:25:28,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:25:28,594 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:25:28,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:25:28,631 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:25:28,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28 WrapperNode [2025-03-04 16:25:28,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:25:28,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:25:28,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:25:28,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:25:28,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,674 INFO L138 Inliner]: procedures = 22, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 296 [2025-03-04 16:25:28,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:25:28,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:25:28,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:25:28,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:25:28,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,709 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]. [2025-03-04 16:25:28,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,718 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:25:28,733 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:25:28,734 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:25:28,734 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:25:28,735 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (1/1) ... [2025-03-04 16:25:28,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:28,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:28,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:28,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:25:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:25:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:25:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:25:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:25:28,861 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:25:28,863 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:25:29,150 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-03-04 16:25:29,152 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:25:29,159 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:25:29,160 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:25:29,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:25:29 BoogieIcfgContainer [2025-03-04 16:25:29,160 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:25:29,161 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:25:29,161 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:25:29,165 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:25:29,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:25:29,165 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:25:28" (1/3) ... [2025-03-04 16:25:29,166 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3353a22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:25:29, skipping insertion in model container [2025-03-04 16:25:29,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:25:29,166 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:25:28" (2/3) ... [2025-03-04 16:25:29,167 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3353a22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:25:29, skipping insertion in model container [2025-03-04 16:25:29,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:25:29,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:25:29" (3/3) ... [2025-03-04 16:25:29,168 INFO L363 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2025-03-04 16:25:29,198 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:25:29,199 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:25:29,199 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:25:29,199 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:25:29,199 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:25:29,199 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:25:29,199 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:25:29,199 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:25:29,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 81 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:29,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2025-03-04 16:25:29,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:25:29,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:25:29,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,219 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:25:29,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 81 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:29,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2025-03-04 16:25:29,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:25:29,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:25:29,222 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,227 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(49, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;" "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~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume !(0 == ~r1~0);init_~tmp~0#1 := 0;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret25#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;" "assume !(0 == main_~i2~0#1);" "~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2025-03-04 16:25:29,227 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 8;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0;" "assume !(node1_~m1~0#1 != ~nomsg~0);" "~mode1~0 := 0;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume !(0 != ~mode2~0 % 256);" "assume 0 != ~alive2~0 % 256;~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);" "~mode2~0 := 1;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume !(0 != ~mode3~0 % 256);" "assume 0 != ~alive3~0 % 256;~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);" "~mode3~0 := 1;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume !(0 != ~mode4~0 % 256);" "assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);" "~mode4~0 := 1;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret26#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1;" [2025-03-04 16:25:29,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -290656184, now seen corresponding path program 1 times [2025-03-04 16:25:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:29,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755536713] [2025-03-04 16:25:29,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:29,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:29,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:25:29,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:25:29,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:29,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:25:29,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:25:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755536713] [2025-03-04 16:25:29,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755536713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:25:29,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:25:29,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:25:29,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806204517] [2025-03-04 16:25:29,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:25:29,473 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-04 16:25:29,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash -504466298, now seen corresponding path program 1 times [2025-03-04 16:25:29,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:29,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735905508] [2025-03-04 16:25:29,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:29,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:29,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:25:29,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:25:29,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:29,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:25:29,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:25:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735905508] [2025-03-04 16:25:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735905508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:25:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:25:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:25:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434202644] [2025-03-04 16:25:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:25:29,817 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:25:29,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:25:29,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:25:29,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:25:29,839 INFO L87 Difference]: Start difference. First operand has 82 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 81 states have internal predecessors, (138), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:25:29,926 INFO L93 Difference]: Finished difference Result 132 states and 215 transitions. [2025-03-04 16:25:29,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 215 transitions. [2025-03-04 16:25:29,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2025-03-04 16:25:29,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 124 states and 184 transitions. [2025-03-04 16:25:29,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2025-03-04 16:25:29,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2025-03-04 16:25:29,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 184 transitions. [2025-03-04 16:25:29,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:25:29,947 INFO L218 hiAutomatonCegarLoop]: Abstraction has 124 states and 184 transitions. [2025-03-04 16:25:29,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 184 transitions. [2025-03-04 16:25:29,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 77. [2025-03-04 16:25:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 76 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 107 transitions. [2025-03-04 16:25:29,965 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 107 transitions. [2025-03-04 16:25:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:25:29,969 INFO L432 stractBuchiCegarLoop]: Abstraction has 77 states and 107 transitions. [2025-03-04 16:25:29,969 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:25:29,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 107 transitions. [2025-03-04 16:25:29,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2025-03-04 16:25:29,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:25:29,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:25:29,973 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,973 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:29,974 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(49, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;" "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~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume 0 == ~r1~0;" "assume (if ~alive1~0 % 256 % 4294967296 <= 2147483647 then ~alive1~0 % 256 % 4294967296 else ~alive1~0 % 256 % 4294967296 - 4294967296) + (if ~alive2~0 % 256 % 4294967296 <= 2147483647 then ~alive2~0 % 256 % 4294967296 else ~alive2~0 % 256 % 4294967296 - 4294967296) + (if ~alive3~0 % 256 % 4294967296 <= 2147483647 then ~alive3~0 % 256 % 4294967296 else ~alive3~0 % 256 % 4294967296 - 4294967296) + (if ~alive4~0 % 256 % 4294967296 <= 2147483647 then ~alive4~0 % 256 % 4294967296 else ~alive4~0 % 256 % 4294967296 - 4294967296) >= 1;" "assume ~id1~0 >= 0;" "assume 0 == ~st1~0;" "assume ~send1~0 == ~id1~0;" "assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296);" "assume ~id2~0 >= 0;" "assume 0 == ~st2~0;" "assume ~send2~0 == ~id2~0;" "assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296);" "assume ~id3~0 >= 0;" "assume 0 == ~st3~0;" "assume ~send3~0 == ~id3~0;" "assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296);" "assume ~id4~0 >= 0;" "assume 0 == ~st4~0;" "assume ~send4~0 == ~id4~0;" "assume 0 == (if ~mode4~0 % 256 % 4294967296 <= 2147483647 then ~mode4~0 % 256 % 4294967296 else ~mode4~0 % 256 % 4294967296 - 4294967296);" "assume ~id1~0 != ~id2~0;" "assume ~id1~0 != ~id3~0;" "assume ~id1~0 != ~id4~0;" "assume ~id2~0 != ~id3~0;" "assume ~id2~0 != ~id4~0;" "assume ~id3~0 != ~id4~0;init_~tmp~0#1 := 1;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret25#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;" "assume !(0 == main_~i2~0#1);" "~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2025-03-04 16:25:29,974 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 8;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0;" "assume !(node1_~m1~0#1 != ~nomsg~0);" "~mode1~0 := 0;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0;" "assume !(node2_~m2~0#1 != ~nomsg~0);" "~mode2~0 := 0;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0;" "assume !(node3_~m3~0#1 != ~nomsg~0);" "~mode3~0 := 0;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume !(0 != ~mode4~0 % 256);" "assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);" "~mode4~0 := 1;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret26#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1;" [2025-03-04 16:25:29,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:29,974 INFO L85 PathProgramCache]: Analyzing trace with hash 527168739, now seen corresponding path program 1 times [2025-03-04 16:25:29,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752946461] [2025-03-04 16:25:29,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:29,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:29,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:25:30,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:25:30,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,024 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:25:30,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:25:30,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:25:30,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:25:30,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:30,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1469410732, now seen corresponding path program 1 times [2025-03-04 16:25:30,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:30,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748091194] [2025-03-04 16:25:30,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:30,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:30,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:25:30,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:25:30,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:25:30,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:25:30,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748091194] [2025-03-04 16:25:30,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748091194] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:25:30,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:25:30,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:25:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749396100] [2025-03-04 16:25:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:25:30,198 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:25:30,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:25:30,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:25:30,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:25:30,198 INFO L87 Difference]: Start difference. First operand 77 states and 107 transitions. cyclomatic complexity: 31 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:30,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:25:30,223 INFO L93 Difference]: Finished difference Result 80 states and 109 transitions. [2025-03-04 16:25:30,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 109 transitions. [2025-03-04 16:25:30,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2025-03-04 16:25:30,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 77 states and 105 transitions. [2025-03-04 16:25:30,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2025-03-04 16:25:30,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2025-03-04 16:25:30,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 105 transitions. [2025-03-04 16:25:30,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:25:30,227 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 105 transitions. [2025-03-04 16:25:30,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 105 transitions. [2025-03-04 16:25:30,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-04 16:25:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 76 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2025-03-04 16:25:30,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 105 transitions. [2025-03-04 16:25:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:25:30,233 INFO L432 stractBuchiCegarLoop]: Abstraction has 77 states and 105 transitions. [2025-03-04 16:25:30,233 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:25:30,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 105 transitions. [2025-03-04 16:25:30,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2025-03-04 16:25:30,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:25:30,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:25:30,234 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:30,234 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:25:30,235 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(49, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;" "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~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume 0 == ~r1~0;" "assume (if ~alive1~0 % 256 % 4294967296 <= 2147483647 then ~alive1~0 % 256 % 4294967296 else ~alive1~0 % 256 % 4294967296 - 4294967296) + (if ~alive2~0 % 256 % 4294967296 <= 2147483647 then ~alive2~0 % 256 % 4294967296 else ~alive2~0 % 256 % 4294967296 - 4294967296) + (if ~alive3~0 % 256 % 4294967296 <= 2147483647 then ~alive3~0 % 256 % 4294967296 else ~alive3~0 % 256 % 4294967296 - 4294967296) + (if ~alive4~0 % 256 % 4294967296 <= 2147483647 then ~alive4~0 % 256 % 4294967296 else ~alive4~0 % 256 % 4294967296 - 4294967296) >= 1;" "assume ~id1~0 >= 0;" "assume 0 == ~st1~0;" "assume ~send1~0 == ~id1~0;" "assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296);" "assume ~id2~0 >= 0;" "assume 0 == ~st2~0;" "assume ~send2~0 == ~id2~0;" "assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296);" "assume ~id3~0 >= 0;" "assume 0 == ~st3~0;" "assume ~send3~0 == ~id3~0;" "assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296);" "assume ~id4~0 >= 0;" "assume 0 == ~st4~0;" "assume ~send4~0 == ~id4~0;" "assume 0 == (if ~mode4~0 % 256 % 4294967296 <= 2147483647 then ~mode4~0 % 256 % 4294967296 else ~mode4~0 % 256 % 4294967296 - 4294967296);" "assume ~id1~0 != ~id2~0;" "assume ~id1~0 != ~id3~0;" "assume ~id1~0 != ~id4~0;" "assume ~id2~0 != ~id3~0;" "assume ~id2~0 != ~id4~0;" "assume ~id3~0 != ~id4~0;init_~tmp~0#1 := 1;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret25#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;" "assume !(0 == main_~i2~0#1);" "~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2025-03-04 16:25:30,235 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 8;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0;" "assume !(node1_~m1~0#1 != ~nomsg~0);" "~mode1~0 := 0;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0;" "assume !(node2_~m2~0#1 != ~nomsg~0);" "~mode2~0 := 0;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0;" "assume !(node3_~m3~0#1 != ~nomsg~0);" "~mode3~0 := 0;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0;" "assume !(node4_~m4~0#1 != ~nomsg~0);" "~mode4~0 := 0;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1;" "assume ~r1~0 < 4;check_~tmp~1#1 := 1;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret26#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1;" [2025-03-04 16:25:30,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash 527168739, now seen corresponding path program 2 times [2025-03-04 16:25:30,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:30,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753750065] [2025-03-04 16:25:30,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:25:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:30,246 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:25:30,269 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:25:30,272 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:25:30,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,272 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:25:30,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:25:30,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:25:30,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:25:30,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:30,310 INFO L85 PathProgramCache]: Analyzing trace with hash 394948735, now seen corresponding path program 1 times [2025-03-04 16:25:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:30,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776126014] [2025-03-04 16:25:30,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:30,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:30,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:25:30,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:25:30,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,324 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:25:30,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:25:30,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:25:30,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:25:30,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:25:30,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -984867491, now seen corresponding path program 1 times [2025-03-04 16:25:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:25:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354634405] [2025-03-04 16:25:30,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:25:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:25:30,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 16:25:30,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 16:25:30,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:30,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:25:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:25:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354634405] [2025-03-04 16:25:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354634405] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:25:30,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:25:30,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:25:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849027466] [2025-03-04 16:25:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:25:30,906 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:25:30,907 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:25:30,907 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:25:30,907 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:25:30,907 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:25:30,907 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:30,907 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:25:30,907 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:25:30,907 INFO L132 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2025-03-04 16:25:30,907 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:25:30,908 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:25:30,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,971 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:30,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,372 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:25:31,372 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:25:31,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:31,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:31,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 16:25:31,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:25:31,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:25:31,390 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:25:31,390 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post27#1=0} Honda state: {ULTIMATE.start_main_#t~post27#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:25:31,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-04 16:25:31,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:31,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:31,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 16:25:31,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:25:31,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:25:31,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-04 16:25:31,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:31,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:31,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 16:25:31,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:25:31,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:25:31,515 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 16:25:31,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 16:25:31,520 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:25:31,520 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:25:31,520 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:25:31,520 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:25:31,521 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:25:31,521 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,521 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:25:31,521 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:25:31,521 INFO L132 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2025-03-04 16:25:31,521 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:25:31,521 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:25:31,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,543 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:25:31,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:25:31,960 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:25:31,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:31,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:31,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 16:25:31,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:31,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:31,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:31,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:31,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:31,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:31,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:31,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:31,986 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:31,992 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 [2025-03-04 16:25:31,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:31,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:31,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:31,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 16:25:31,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,010 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-03-04 16:25:32,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,018 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:32,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 16:25:32,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,035 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,040 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 [2025-03-04 16:25:32,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:32,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 16:25:32,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,058 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 16:25:32,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,066 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:25:32,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 16:25:32,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,079 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-04 16:25:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,086 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) [2025-03-04 16:25:32,086 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 [2025-03-04 16:25:32,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,107 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-04 16:25:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,115 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) [2025-03-04 16:25:32,116 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 [2025-03-04 16:25:32,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,135 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-04 16:25:32,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,142 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) [2025-03-04 16:25:32,145 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 [2025-03-04 16:25:32,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,159 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 16:25:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,166 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) [2025-03-04 16:25:32,168 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 [2025-03-04 16:25:32,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,182 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-03-04 16:25:32,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,190 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) [2025-03-04 16:25:32,192 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 [2025-03-04 16:25:32,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,206 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,212 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 [2025-03-04 16:25:32,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,214 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) [2025-03-04 16:25:32,215 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 [2025-03-04 16:25:32,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,227 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-04 16:25:32,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,230 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-04 16:25:32,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,233 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,239 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 [2025-03-04 16:25:32,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,241 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) [2025-03-04 16:25:32,252 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 [2025-03-04 16:25:32,253 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 [2025-03-04 16:25:32,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,266 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:25:32,271 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 [2025-03-04 16:25:32,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,273 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) [2025-03-04 16:25:32,275 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 [2025-03-04 16:25:32,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 16:25:32,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:25:32,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:25:32,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:25:32,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:25:32,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:25:32,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:25:32,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:25:32,288 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:25:32,295 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 16:25:32,297 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 16:25:32,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:25:32,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:25:32,300 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) [2025-03-04 16:25:32,301 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 [2025-03-04 16:25:32,302 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:25:32,302 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 16:25:32,302 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:25:32,303 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 15 Supporting invariants [] [2025-03-04 16:25:32,309 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 [2025-03-04 16:25:32,311 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 16:25:32,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:25:32,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 16:25:32,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 16:25:32,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:32,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:32,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 16:25:32,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:25:32,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:25:32,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:25:32,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:25:32,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:25:32,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 16:25:32,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:25:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:25:32,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-04 16:25:32,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 105 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:32,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 105 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 124 states and 181 transitions. Complement of second has 4 states. [2025-03-04 16:25:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-04 16:25:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2025-03-04 16:25:32,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 105 transitions. Stem has 30 letters. Loop has 23 letters. [2025-03-04 16:25:32,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:25:32,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 105 transitions. Stem has 53 letters. Loop has 23 letters. [2025-03-04 16:25:32,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:25:32,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 105 transitions. Stem has 30 letters. Loop has 46 letters. [2025-03-04 16:25:32,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:25:32,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 181 transitions. [2025-03-04 16:25:32,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:25:32,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 0 states and 0 transitions. [2025-03-04 16:25:32,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 16:25:32,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 16:25:32,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 16:25:32,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:25:32,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:25:32,586 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:25:32,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:25:32,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:25:32,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:25:32,586 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:25:32,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:25:32,587 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:25:32,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 16:25:32,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 16:25:32,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:25:32,587 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:25:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 16:25:32,588 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:25:32,588 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:25:32,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 16:25:32,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:25:32,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 16:25:32,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:25:32 BoogieIcfgContainer [2025-03-04 16:25:32,595 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:25:32,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:25:32,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:25:32,596 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:25:32,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:25:29" (3/4) ... [2025-03-04 16:25:32,598 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 16:25:32,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:25:32,599 INFO L158 Benchmark]: Toolchain (without parser) took 4171.80ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 99.0MB in the end (delta: 23.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2025-03-04 16:25:32,599 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:25:32,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.79ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 107.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:25:32,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.29ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 104.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:25:32,599 INFO L158 Benchmark]: Boogie Preprocessor took 54.04ms. Allocated memory is still 167.8MB. Free memory was 104.8MB in the beginning and 102.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:25:32,600 INFO L158 Benchmark]: IcfgBuilder took 426.94ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 77.1MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:25:32,600 INFO L158 Benchmark]: BuchiAutomizer took 3434.43ms. Allocated memory is still 167.8MB. Free memory was 77.1MB in the beginning and 99.0MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:25:32,600 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 99.0MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:25:32,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.79ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 107.1MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.29ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 104.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.04ms. Allocated memory is still 167.8MB. Free memory was 104.8MB in the beginning and 102.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 426.94ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 77.1MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3434.43ms. Allocated memory is still 167.8MB. Free memory was 77.1MB in the beginning and 99.0MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 99.0MB in the end (delta: 46.1kB). 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 (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (15 + ((long long) -2 * i2)) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 47 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 1080 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 741 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 339 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf100 lsp32 ukn100 mio100 lsp100 div168 bol100 ite100 ukn100 eq153 hnf97 smp77 dnf104 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 16:25:32,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-04 16:25:32,815 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