./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/parity1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/parity1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:49:56,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:49:56,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:49:56,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:49:56,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:49:56,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:49:56,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:49:56,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:49:56,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:49:56,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:49:56,474 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:49:56,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:49:56,475 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:49:56,475 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:49:56,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:49:56,476 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:49:56,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:49:56,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:49:56,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:49:56,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:49:56,477 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:49:56,477 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 [2025-03-17 19:49:56,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:49:56,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:49:56,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:49:56,702 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:49:56,702 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:49:56,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/parity1.i [2025-03-17 19:49:57,847 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fcd063b8/56cbae45a1924db68869a09dea955ed1/FLAG6803b7e77 [2025-03-17 19:49:58,063 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:49:58,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/parity1.i [2025-03-17 19:49:58,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fcd063b8/56cbae45a1924db68869a09dea955ed1/FLAG6803b7e77 [2025-03-17 19:49:58,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fcd063b8/56cbae45a1924db68869a09dea955ed1 [2025-03-17 19:49:58,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:49:58,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:49:58,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:49:58,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:49:58,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:49:58,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54406d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58, skipping insertion in model container [2025-03-17 19:49:58,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:49:58,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:49:58,190 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:49:58,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:49:58,208 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:49:58,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58 WrapperNode [2025-03-17 19:49:58,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:49:58,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:49:58,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:49:58,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:49:58,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,226 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-03-17 19:49:58,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:49:58,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:49:58,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:49:58,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:49:58,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,236 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 19:49:58,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,240 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:49:58,244 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:49:58,244 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:49:58,244 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:49:58,245 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (1/1) ... [2025-03-17 19:49:58,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-17 19:49:58,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:49:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:49:58,329 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:49:58,330 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:49:58,399 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-03-17 19:49:58,400 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:49:58,411 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:49:58,412 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:49:58,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:49:58 BoogieIcfgContainer [2025-03-17 19:49:58,412 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:49:58,413 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:49:58,413 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:49:58,416 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:49:58,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:49:58,417 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:49:58" (1/3) ... [2025-03-17 19:49:58,417 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a2360d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:49:58, skipping insertion in model container [2025-03-17 19:49:58,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:49:58,417 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:49:58" (2/3) ... [2025-03-17 19:49:58,418 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a2360d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:49:58, skipping insertion in model container [2025-03-17 19:49:58,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:49:58,418 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:49:58" (3/3) ... [2025-03-17 19:49:58,418 INFO L363 chiAutomizerObserver]: Analyzing ICFG parity1.i [2025-03-17 19:49:58,456 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:49:58,456 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:49:58,457 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:49:58,457 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:49:58,457 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:49:58,457 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:49:58,457 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:49:58,457 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:49:58,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:58,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:49:58,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:49:58,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:49:58,474 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 19:49:58,474 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 19:49:58,474 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:49:58,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:58,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:49:58,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:49:58,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:49:58,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 19:49:58,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 19:49:58,480 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" [2025-03-17 19:49:58,480 INFO L754 eck$LassoCheckResult]: Loop: "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" [2025-03-17 19:49:58,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1312, now seen corresponding path program 1 times [2025-03-17 19:49:58,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:58,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149122541] [2025-03-17 19:49:58,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:58,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:58,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:58,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:58,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,544 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:58,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:58,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:58,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:58,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash 37542, now seen corresponding path program 1 times [2025-03-17 19:49:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408905025] [2025-03-17 19:49:58,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:58,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:58,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:58,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,583 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:58,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:58,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:58,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:58,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash 39093543, now seen corresponding path program 1 times [2025-03-17 19:49:58,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:58,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308302988] [2025-03-17 19:49:58,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:58,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:58,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:58,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:58,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,606 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:58,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:58,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:58,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:58,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:58,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:58,702 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:49:58,702 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:49:58,703 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:49:58,703 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:49:58,703 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:49:58,703 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,703 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:49:58,703 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:49:58,703 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-03-17 19:49:58,703 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:49:58,704 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:49:58,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,777 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:49:58,777 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:49:58,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-17 19:49:58,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:58,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:58,798 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:58,798 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:49:58,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:58,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-17 19:49:58,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:58,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:58,831 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 [2025-03-17 19:49:58,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-17 19:49:58,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:58,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:58,863 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:58,863 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-03-17 19:49:58,868 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 [2025-03-17 19:49:58,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-17 19:49:58,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:58,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:58,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-17 19:49:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-17 19:49:58,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:58,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:58,907 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:49:58,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-17 19:49:58,912 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:49:58,913 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:49:58,913 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:49:58,913 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:49:58,913 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:49:58,913 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,913 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:49:58,913 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:49:58,913 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-03-17 19:49:58,913 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:49:58,913 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:49:58,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:58,965 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:49:58,967 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:49:58,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:58,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:58,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-17 19:49:58,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:58,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:58,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:58,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:58,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:58,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:58,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:58,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:58,992 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:49:58,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:58,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:58,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-17 19:49:59,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:59,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:59,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:59,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:59,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:59,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:59,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:59,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:59,018 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:49:59,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,027 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-17 19:49:59,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:59,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:59,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:59,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:59,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:59,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:59,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:59,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:59,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:49:59,046 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:49:59,048 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:49:59,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,067 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-17 19:49:59,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:49:59,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:49:59,069 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:49:59,069 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-17 19:49:59,075 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 [2025-03-17 19:49:59,077 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:49:59,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:59,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:59,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:49:59,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:49:59,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:49:59,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:49:59,114 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:49:59,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:49:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:49:59,186 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 19:49:59,187 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 45 states and 60 transitions. Complement of second has 11 states. [2025-03-17 19:49:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 19:49:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2025-03-17 19:49:59,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-17 19:49:59,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-17 19:49:59,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 2 letters. Loop has 6 letters. [2025-03-17 19:49:59,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2025-03-17 19:49:59,292 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-17 19:49:59,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 28 states and 34 transitions. [2025-03-17 19:49:59,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2025-03-17 19:49:59,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2025-03-17 19:49:59,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 34 transitions. [2025-03-17 19:49:59,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:49:59,296 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 34 transitions. [2025-03-17 19:49:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 34 transitions. [2025-03-17 19:49:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2025-03-17 19:49:59,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2025-03-17 19:49:59,311 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 19:49:59,311 INFO L432 stractBuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 19:49:59,311 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:49:59,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2025-03-17 19:49:59,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-17 19:49:59,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:49:59,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:49:59,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 19:49:59,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-17 19:49:59,312 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume ~v~0 < 0;~v~0 := -1 * ~v~0;" [2025-03-17 19:49:59,312 INFO L754 eck$LassoCheckResult]: Loop: "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" [2025-03-17 19:49:59,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1311, now seen corresponding path program 1 times [2025-03-17 19:49:59,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875594988] [2025-03-17 19:49:59,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:59,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:59,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:59,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,317 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:59,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:59,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,320 INFO L85 PathProgramCache]: Analyzing trace with hash 37542, now seen corresponding path program 2 times [2025-03-17 19:49:59,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737757979] [2025-03-17 19:49:59,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:49:59,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,324 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,328 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,329 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:49:59,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,329 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,332 INFO L85 PathProgramCache]: Analyzing trace with hash 39063752, now seen corresponding path program 1 times [2025-03-17 19:49:59,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961966594] [2025-03-17 19:49:59,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:59,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:59,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,337 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:59,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:59,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,358 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 [2025-03-17 19:49:59,400 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:49:59,400 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:49:59,401 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:49:59,401 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:49:59,401 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:49:59,401 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,401 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:49:59,401 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:49:59,401 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-03-17 19:49:59,401 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:49:59,401 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:49:59,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,443 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:49:59,443 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:49:59,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,447 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-17 19:49:59,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,465 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 [2025-03-17 19:49:59,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-17 19:49:59,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:59,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:59,495 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-03-17 19:49:59,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-03-17 19:49:59,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-17 19:49:59,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,514 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:59,514 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:49:59,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-17 19:49:59,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,522 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-17 19:49:59,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,534 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:59,534 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:49:59,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-03-17 19:49:59,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,541 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-17 19:49:59,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-03-17 19:49:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,560 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-17 19:49:59,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:59,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,573 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:49:59,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,580 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:49:59,580 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:49:59,580 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:49:59,580 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:49:59,580 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:49:59,580 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,580 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:49:59,580 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:49:59,580 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-03-17 19:49:59,580 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:49:59,580 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:49:59,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,618 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:49:59,618 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:49:59,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,621 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-17 19:49:59,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:59,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:59,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:59,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:59,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:59,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:59,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:59,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:59,639 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:49:59,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,648 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-17 19:49:59,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:59,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:59,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:59,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:59,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:59,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:59,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:59,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:59,665 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:49:59,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,672 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-17 19:49:59,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:49:59,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:49:59,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:49:59,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:49:59,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:49:59,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:49:59,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:49:59,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:49:59,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:49:59,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:49:59,687 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:49:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,690 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-03-17 19:49:59,691 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:49:59,691 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:49:59,691 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:49:59,691 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-17 19:49:59,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,698 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:49:59,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:49:59,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:49:59,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:49:59,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:49:59,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:49:59,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:49:59,719 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:49:59,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:49:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:49:59,740 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 19:49:59,740 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 37 states and 46 transitions. Complement of second has 8 states. [2025-03-17 19:49:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2025-03-17 19:49:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2025-03-17 19:49:59,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-17 19:49:59,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-17 19:49:59,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2025-03-17 19:49:59,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:49:59,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2025-03-17 19:49:59,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-17 19:49:59,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 44 transitions. [2025-03-17 19:49:59,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2025-03-17 19:49:59,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2025-03-17 19:49:59,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2025-03-17 19:49:59,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:49:59,780 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 44 transitions. [2025-03-17 19:49:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2025-03-17 19:49:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 15. [2025-03-17 19:49:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:49:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2025-03-17 19:49:59,781 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2025-03-17 19:49:59,781 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2025-03-17 19:49:59,781 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 19:49:59,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2025-03-17 19:49:59,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:49:59,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:49:59,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:49:59,782 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-17 19:49:59,782 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:49:59,782 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-17 19:49:59,782 INFO L754 eck$LassoCheckResult]: Loop: "assume !(0 == ~v~0 || 0 == ~v~0 - 1);" "assume !(~v~0 == ~v~0 - 1);" "havoc main_#t~bitwise3#1;assume (((((~v~0 < 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 <= ~v~0) && ((~v~0 >= 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 <= ~v~0 - 1)) && ((~v~0 < 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 >= 0)) && ((~v~0 >= 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 > ~v~0 + (~v~0 - 1))) && main_#t~bitwise3#1 >= -2147483648;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-17 19:49:59,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 40680, now seen corresponding path program 1 times [2025-03-17 19:49:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608195178] [2025-03-17 19:49:59,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,786 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:49:59,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:49:59,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash 35285076, now seen corresponding path program 1 times [2025-03-17 19:49:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807453044] [2025-03-17 19:49:59,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:59,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:59,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,798 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:49:59,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:49:59,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:49:59,803 INFO L85 PathProgramCache]: Analyzing trace with hash 704381389, now seen corresponding path program 1 times [2025-03-17 19:49:59,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:49:59,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630485268] [2025-03-17 19:49:59,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:49:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:49:59,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:49:59,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:49:59,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,809 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:49:59,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:49:59,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:49:59,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:49:59,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:49:59,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:49:59,861 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:49:59,861 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:49:59,861 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:49:59,861 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:49:59,861 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:49:59,861 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,862 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:49:59,862 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:49:59,862 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-03-17 19:49:59,862 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:49:59,862 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:49:59,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:49:59,894 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:49:59,894 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:49:59,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,897 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-03-17 19:49:59,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-03-17 19:49:59,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,917 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-03-17 19:49:59,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:59,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,945 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:59,945 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-03-17 19:49:59,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-17 19:49:59,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,953 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-03-17 19:49:59,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,967 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:49:59,967 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:49:59,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,974 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-03-17 19:49:59,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:49:59,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:49:59,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-03-17 19:49:59,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:49:59,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:49:59,994 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:49:59,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-03-17 19:49:59,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:49:59,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:50:00,033 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:50:00,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-17 19:50:00,037 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:50:00,037 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:50:00,037 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:50:00,037 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:50:00,037 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:50:00,037 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,037 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:50:00,037 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:50:00,037 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-03-17 19:50:00,037 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:50:00,037 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:50:00,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,080 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:50:00,080 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:50:00,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,103 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-17 19:50:00,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,117 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:50:00,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-03-17 19:50:00,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,143 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-17 19:50:00,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,156 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:50:00,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-17 19:50:00,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,163 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-03-17 19:50:00,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:50:00,177 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-17 19:50:00,177 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:50:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,179 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-03-17 19:50:00,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:50:00,180 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:50:00,181 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:50:00,181 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-17 19:50:00,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-03-17 19:50:00,186 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:50:00,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:00,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:50:00,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:50:00,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:00,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:00,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:00,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:50:00,311 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-17 19:50:00,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:00,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 42 transitions. Complement of second has 11 states. [2025-03-17 19:50:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 19:50:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2025-03-17 19:50:00,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 5 letters. [2025-03-17 19:50:00,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:00,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 8 letters. Loop has 5 letters. [2025-03-17 19:50:00,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:00,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 10 letters. [2025-03-17 19:50:00,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:00,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 42 transitions. [2025-03-17 19:50:00,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:50:00,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 21 states and 25 transitions. [2025-03-17 19:50:00,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-03-17 19:50:00,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2025-03-17 19:50:00,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2025-03-17 19:50:00,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:50:00,401 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2025-03-17 19:50:00,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2025-03-17 19:50:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2025-03-17 19:50:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2025-03-17 19:50:00,403 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-17 19:50:00,403 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-17 19:50:00,403 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 19:50:00,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2025-03-17 19:50:00,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:50:00,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:50:00,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:50:00,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2025-03-17 19:50:00,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:50:00,403 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-17 19:50:00,403 INFO L754 eck$LassoCheckResult]: Loop: "assume !(0 == ~v~0 || 0 == ~v~0 - 1);" "assume !(~v~0 == ~v~0 - 1);" "havoc main_#t~bitwise3#1;assume (((((~v~0 < 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 <= ~v~0) && ((~v~0 >= 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 <= ~v~0 - 1)) && ((~v~0 < 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 >= 0)) && ((~v~0 >= 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 > ~v~0 + (~v~0 - 1))) && main_#t~bitwise3#1 >= -2147483648;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-17 19:50:00,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1211899841, now seen corresponding path program 2 times [2025-03-17 19:50:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:50:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476137022] [2025-03-17 19:50:00,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:50:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:50:00,409 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-03-17 19:50:00,413 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:50:00,414 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:50:00,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:50:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:50:00,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476137022] [2025-03-17 19:50:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476137022] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:50:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:50:00,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:50:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076625580] [2025-03-17 19:50:00,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:50:00,448 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-17 19:50:00,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash 35285076, now seen corresponding path program 2 times [2025-03-17 19:50:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:50:00,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011334900] [2025-03-17 19:50:00,449 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:50:00,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:50:00,451 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:00,453 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:00,453 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:50:00,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:50:00,453 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:50:00,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:00,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:00,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:50:00,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:50:00,501 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:50:00,501 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:50:00,501 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:50:00,501 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:50:00,501 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:50:00,501 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,501 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:50:00,501 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:50:00,501 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-03-17 19:50:00,501 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:50:00,501 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:50:00,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,539 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:50:00,539 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:50:00,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,541 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-03-17 19:50:00,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:50:00,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:50:00,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-03-17 19:50:00,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-03-17 19:50:00,559 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:50:00,559 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:50:00,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-03-17 19:50:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,567 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-03-17 19:50:00,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:50:00,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:50:00,584 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:50:00,585 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:50:00,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-03-17 19:50:00,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,593 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-03-17 19:50:00,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:50:00,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:50:00,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-03-17 19:50:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,614 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-03-17 19:50:00,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:50:00,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:50:00,651 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:50:00,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-03-17 19:50:00,655 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:50:00,655 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:50:00,655 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:50:00,655 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:50:00,655 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:50:00,655 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,655 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:50:00,655 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:50:00,655 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-03-17 19:50:00,655 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:50:00,655 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:50:00,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:50:00,681 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:50:00,681 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:50:00,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,683 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-03-17 19:50:00,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,698 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:50:00,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-03-17 19:50:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,705 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-03-17 19:50:00,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,717 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:50:00,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-03-17 19:50:00,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,724 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-03-17 19:50:00,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:50:00,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:50:00,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:50:00,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:50:00,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:50:00,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:50:00,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:50:00,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:50:00,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:50:00,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:50:00,739 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:50:00,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:50:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:50:00,742 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:50:00,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-03-17 19:50:00,745 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:50:00,745 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:50:00,745 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:50:00,746 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-17 19:50:00,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-03-17 19:50:00,751 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:50:00,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:00,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:50:00,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:50:00,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:00,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:00,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:00,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:50:00,855 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-17 19:50:00,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:00,917 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 30 transitions. Complement of second has 11 states. [2025-03-17 19:50:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 19:50:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:00,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2025-03-17 19:50:00,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 6 letters. Loop has 5 letters. [2025-03-17 19:50:00,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:00,918 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:50:00,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:00,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:50:00,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:50:00,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:00,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:00,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:00,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:00,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:00,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:50:00,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:50:01,016 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-17 19:50:01,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:01,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 30 transitions. Complement of second has 11 states. [2025-03-17 19:50:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 19:50:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2025-03-17 19:50:01,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 6 letters. Loop has 5 letters. [2025-03-17 19:50:01,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:01,079 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:50:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:50:01,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:50:01,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:50:01,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:01,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:01,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:50:01,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:01,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:50:01,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:50:01,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:50:01,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:50:01,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:50:01,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:50:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:50:01,169 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-17 19:50:01,170 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:01,235 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 29 transitions. Complement of second has 10 states. [2025-03-17 19:50:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 19:50:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2025-03-17 19:50:01,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 5 letters. [2025-03-17 19:50:01,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:01,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2025-03-17 19:50:01,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:01,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 10 letters. [2025-03-17 19:50:01,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:50:01,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2025-03-17 19:50:01,237 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:50:01,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2025-03-17 19:50:01,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:50:01,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:50:01,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:50:01,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:50:01,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:50:01,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:50:01,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:50:01,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:50:01,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:50:01,239 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:50:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:50:01,241 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:50:01,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:50:01,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:50:01,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:50:01,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:50:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 19:50:01,242 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:50:01,242 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-17 19:50:01,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:50:01,242 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:50:01,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:50:01,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:50:01 BoogieIcfgContainer [2025-03-17 19:50:01,247 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:50:01,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:50:01,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:50:01,247 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:50:01,248 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:49:58" (3/4) ... [2025-03-17 19:50:01,249 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:50:01,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:50:01,250 INFO L158 Benchmark]: Toolchain (without parser) took 3169.06ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 48.2MB in the end (delta: 63.1MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2025-03-17 19:50:01,250 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 127.9MB in the beginning and 127.6MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:50:01,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 127.32ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 100.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:50:01,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.69ms. Allocated memory is still 142.6MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:50:01,250 INFO L158 Benchmark]: Boogie Preprocessor took 17.15ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:50:01,250 INFO L158 Benchmark]: IcfgBuilder took 168.03ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 88.2MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:50:01,251 INFO L158 Benchmark]: BuchiAutomizer took 2833.93ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 49.0MB in the end (delta: 39.1MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2025-03-17 19:50:01,251 INFO L158 Benchmark]: Witness Printer took 2.31ms. Allocated memory is still 142.6MB. Free memory was 49.0MB in the beginning and 48.2MB in the end (delta: 808.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:50:01,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 127.9MB in the beginning and 127.6MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 127.32ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 100.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.69ms. Allocated memory is still 142.6MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.15ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 168.03ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 88.2MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2833.93ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 49.0MB in the end (delta: 39.1MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 2.31ms. Allocated memory is still 142.6MB. Free memory was 49.0MB in the beginning and 48.2MB in the end (delta: 808.7kB). 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function v and consists of 7 locations. One deterministic module has affine ranking function v and consists of 5 locations. One deterministic module has affine ranking function v and consists of 6 locations. One nondeterministic module has affine ranking function v and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 52 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp100 dnf100 smp100 tf115 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:50:01,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-03-17 19:50:01,465 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