./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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-?-798a7b3-m [2025-03-04 15:33:30,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:33:30,353 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-04 15:33:30,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:33:30,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:33:30,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:33:30,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:33:30,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:33:30,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:33:30,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:33:30,375 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:33:30,375 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:33:30,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:33:30,376 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:33:30,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:33:30,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:33:30,376 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:33:30,377 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 [2025-03-04 15:33:30,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:33:30,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:33:30,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:33:30,561 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:33:30,562 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:33:30,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/parity1.i [2025-03-04 15:33:31,650 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7397ee30d/2fa916f5297f49588893e072fba1ac3c/FLAGda2da4069 [2025-03-04 15:33:31,861 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:33:31,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/parity1.i [2025-03-04 15:33:31,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7397ee30d/2fa916f5297f49588893e072fba1ac3c/FLAGda2da4069 [2025-03-04 15:33:32,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7397ee30d/2fa916f5297f49588893e072fba1ac3c [2025-03-04 15:33:32,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:33:32,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:33:32,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:33:32,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:33:32,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:33:32,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b21774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32, skipping insertion in model container [2025-03-04 15:33:32,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:33:32,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:33:32,342 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:33:32,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:33:32,357 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:33:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32 WrapperNode [2025-03-04 15:33:32,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:33:32,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:33:32,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:33:32,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:33:32,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,375 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-03-04 15:33:32,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:33:32,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:33:32,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:33:32,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:33:32,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,387 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 15:33:32,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,389 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:33:32,391 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:33:32,391 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:33:32,391 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:33:32,392 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (1/1) ... [2025-03-04 15:33:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 15:33:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:33:32,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:33:32,470 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:33:32,471 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:33:32,548 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-03-04 15:33:32,548 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:33:32,567 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:33:32,567 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:33:32,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:32 BoogieIcfgContainer [2025-03-04 15:33:32,568 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:33:32,568 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:33:32,569 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:33:32,572 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:33:32,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:32,573 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:33:32" (1/3) ... [2025-03-04 15:33:32,574 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c425cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:33:32, skipping insertion in model container [2025-03-04 15:33:32,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:32,574 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:33:32" (2/3) ... [2025-03-04 15:33:32,574 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c425cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:33:32, skipping insertion in model container [2025-03-04 15:33:32,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:33:32,574 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:32" (3/3) ... [2025-03-04 15:33:32,575 INFO L363 chiAutomizerObserver]: Analyzing ICFG parity1.i [2025-03-04 15:33:32,613 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:33:32,613 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:33:32,614 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:33:32,614 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:33:32,614 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:33:32,614 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:33:32,614 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:33:32,614 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:33:32,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:32,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 15:33:32,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:32,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:32,630 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:33:32,630 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:33:32,630 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:33:32,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:32,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 15:33:32,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:32,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:32,631 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:33:32,631 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:33:32,636 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" [2025-03-04 15:33:32,637 INFO L754 eck$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;" [2025-03-04 15:33:32,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-03-04 15:33:32,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:32,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806864643] [2025-03-04 15:33:32,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:32,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:32,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:32,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:32,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,695 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:32,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:32,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:32,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:32,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash 39528, now seen corresponding path program 1 times [2025-03-04 15:33:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80452694] [2025-03-04 15:33:32,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:32,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:32,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:32,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:32,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,718 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:32,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:32,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:32,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:32,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:32,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1300684797, now seen corresponding path program 1 times [2025-03-04 15:33:32,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:32,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353495514] [2025-03-04 15:33:32,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:32,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:32,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:33:32,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:33:32,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,731 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:32,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:33:32,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:33:32,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:32,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:32,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:32,792 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:32,792 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:32,792 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:32,792 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:32,792 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:32,792 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,793 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:32,793 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:32,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-03-04 15:33:32,793 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:32,793 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:32,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:32,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:32,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:32,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:32,861 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:32,862 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:32,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 15:33:32,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:32,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:32,883 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:32,883 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: [] [2025-03-04 15:33:32,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-04 15:33:32,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 15:33:32,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:32,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:32,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 15:33:32,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:32,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:32,936 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:32,937 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] [2025-03-04 15:33:32,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 15:33:32,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 15:33:32,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:32,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:32,989 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 [2025-03-04 15:33:32,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:32,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:32,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:32,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 15:33:32,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:32,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,005 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:33:33,011 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 [2025-03-04 15:33:33,011 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:33,011 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:33,011 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:33,011 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:33,011 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:33:33,011 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,011 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:33,011 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:33,011 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-03-04 15:33:33,011 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:33,011 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:33,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,064 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:33,067 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:33:33,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 15:33:33,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,090 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:33,096 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 [2025-03-04 15:33:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,098 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 15:33:33,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,111 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:33,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 15:33:33,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 15:33:33,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:33:33,139 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:33:33,141 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 15:33:33,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,144 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-04 15:33:33,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:33:33,145 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:33:33,146 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:33:33,146 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-04 15:33:33,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-04 15:33:33,154 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:33:33,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:33,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:33,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:33,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:33,194 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:33:33,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:33,247 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 [2025-03-04 15:33:33,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.5) 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) [2025-03-04 15:33:33,328 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.5) 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) Result 50 states and 66 transitions. Complement of second has 11 states. [2025-03-04 15:33:33,329 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 [2025-03-04 15:33:33,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) 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) [2025-03-04 15:33:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2025-03-04 15:33:33,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 3 letters. Loop has 3 letters. [2025-03-04 15:33:33,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 6 letters. Loop has 3 letters. [2025-03-04 15:33:33,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 3 letters. Loop has 6 letters. [2025-03-04 15:33:33,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2025-03-04 15:33:33,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-04 15:33:33,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 29 states and 35 transitions. [2025-03-04 15:33:33,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2025-03-04 15:33:33,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2025-03-04 15:33:33,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2025-03-04 15:33:33,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 15:33:33,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2025-03-04 15:33:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2025-03-04 15:33:33,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2025-03-04 15:33:33,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2025-03-04 15:33:33,358 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2025-03-04 15:33:33,358 INFO L432 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2025-03-04 15:33:33,358 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:33:33,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2025-03-04 15:33:33,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-04 15:33:33,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:33,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:33,358 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:33:33,358 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:33:33,359 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume ~v~0 < 0;~v~0 := -1 * ~v~0;" [2025-03-04 15:33:33,359 INFO L754 eck$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;" [2025-03-04 15:33:33,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,359 INFO L85 PathProgramCache]: Analyzing trace with hash 43659, now seen corresponding path program 1 times [2025-03-04 15:33:33,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831606830] [2025-03-04 15:33:33,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,368 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,372 INFO L85 PathProgramCache]: Analyzing trace with hash 39528, now seen corresponding path program 2 times [2025-03-04 15:33:33,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641381337] [2025-03-04 15:33:33,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:33:33,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,375 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,379 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:33:33,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,379 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1300655006, now seen corresponding path program 1 times [2025-03-04 15:33:33,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138712055] [2025-03-04 15:33:33,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:33,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:33:33,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:33:33,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,392 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:33:33,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:33:33,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,437 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:33,437 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:33,437 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:33,437 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:33,437 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:33,437 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,437 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:33,437 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:33,438 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-03-04 15:33:33,438 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:33,438 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:33,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:33,478 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:33,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-04 15:33:33,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:33,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-04 15:33:33,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-04 15:33:33,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:33,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,543 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:33,543 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] [2025-03-04 15:33:33,548 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 [2025-03-04 15:33:33,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,551 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-04 15:33:33,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:33,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,583 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:33,583 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: [] [2025-03-04 15:33:33,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-04 15:33:33,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:33,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-04 15:33:33,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:33,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,607 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:33,607 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: [] [2025-03-04 15:33:33,613 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 [2025-03-04 15:33:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-04 15:33:33,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:33,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,638 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 [2025-03-04 15:33:33,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,641 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-04 15:33:33,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:33,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:33,655 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:33:33,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:33,662 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:33,662 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:33,662 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:33,662 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:33,662 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:33:33,662 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,662 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:33,662 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:33,662 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-03-04 15:33:33,662 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:33,662 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:33,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,704 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:33,704 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:33:33,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,707 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-04 15:33:33,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,723 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:33,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:33,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,732 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 15:33:33,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-04 15:33:33,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,747 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:33,753 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 [2025-03-04 15:33:33,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,755 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) [2025-03-04 15:33:33,757 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 [2025-03-04 15:33:33,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:33,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:33,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:33,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:33,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:33,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:33,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:33,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:33,771 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:33:33,773 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:33:33,773 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 15:33:33,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:33,791 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) [2025-03-04 15:33:33,792 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 [2025-03-04 15:33:33,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:33:33,792 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:33:33,792 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:33:33,792 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-04 15:33:33,798 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 [2025-03-04 15:33:33,799 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:33:33,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:33,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:33,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:33,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:33:33,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:33:33,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:33,829 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:33:33,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:33,848 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 [2025-03-04 15:33:33,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) 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) [2025-03-04 15:33:33,897 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) 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) Result 38 states and 47 transitions. Complement of second has 8 states. [2025-03-04 15:33:33,899 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 [2025-03-04 15:33:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) 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) [2025-03-04 15:33:33,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2025-03-04 15:33:33,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 3 letters. [2025-03-04 15:33:33,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2025-03-04 15:33:33,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 6 letters. [2025-03-04 15:33:33,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:33,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 47 transitions. [2025-03-04 15:33:33,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-03-04 15:33:33,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 37 states and 45 transitions. [2025-03-04 15:33:33,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-03-04 15:33:33,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2025-03-04 15:33:33,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2025-03-04 15:33:33,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 15:33:33,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2025-03-04 15:33:33,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2025-03-04 15:33:33,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 16. [2025-03-04 15:33:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2025-03-04 15:33:33,906 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2025-03-04 15:33:33,906 INFO L432 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2025-03-04 15:33:33,906 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 15:33:33,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2025-03-04 15:33:33,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 15:33:33,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:33,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:33,906 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-04 15:33:33,906 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 15:33:33,906 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-04 15:33:33,907 INFO L754 eck$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;" [2025-03-04 15:33:33,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1353470, now seen corresponding path program 1 times [2025-03-04 15:33:33,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649268351] [2025-03-04 15:33:33,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:33:33,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:33:33,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,911 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:33:33,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:33:33,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,923 INFO L85 PathProgramCache]: Analyzing trace with hash 37194647, now seen corresponding path program 1 times [2025-03-04 15:33:33,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214409062] [2025-03-04 15:33:33,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:33,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:33,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:33,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,929 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:33,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:33,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:33,940 INFO L85 PathProgramCache]: Analyzing trace with hash -489375046, now seen corresponding path program 1 times [2025-03-04 15:33:33,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:33,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961743438] [2025-03-04 15:33:33,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:33:33,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:33,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:33:33,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:33:33,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,946 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:33,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:33:33,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:33:33,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:33,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:33,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:33,993 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:33,993 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:33,993 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:33,993 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:33,993 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:33,993 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:33,993 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:33,993 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:33,993 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-03-04 15:33:33,993 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:33,993 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:33,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:33,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,029 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:34,029 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:34,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,031 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) [2025-03-04 15:33:34,033 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 [2025-03-04 15:33:34,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,049 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 [2025-03-04 15:33:34,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,051 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) [2025-03-04 15:33:34,052 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 [2025-03-04 15:33:34,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:34,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,075 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:34,075 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] [2025-03-04 15:33:34,081 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 [2025-03-04 15:33:34,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,083 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) [2025-03-04 15:33:34,083 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 [2025-03-04 15:33:34,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,094 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:34,094 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: [] [2025-03-04 15:33:34,099 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 [2025-03-04 15:33:34,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,101 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) [2025-03-04 15:33:34,102 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 [2025-03-04 15:33:34,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-03-04 15:33:34,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,120 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) [2025-03-04 15:33:34,121 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 [2025-03-04 15:33:34,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:34,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,154 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:33:34,157 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 [2025-03-04 15:33:34,157 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:34,157 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:34,158 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:34,158 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:34,158 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:33:34,158 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,158 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:34,158 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:34,158 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-03-04 15:33:34,158 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:34,158 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:34,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,188 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:34,189 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:33:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,190 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) [2025-03-04 15:33:34,192 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 [2025-03-04 15:33:34,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,207 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:34,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:34,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,214 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) [2025-03-04 15:33:34,215 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 [2025-03-04 15:33:34,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,228 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:34,234 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 [2025-03-04 15:33:34,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,237 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) [2025-03-04 15:33:34,238 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 [2025-03-04 15:33:34,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:33:34,255 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-04 15:33:34,255 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 15:33:34,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,257 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) [2025-03-04 15:33:34,259 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 [2025-03-04 15:33:34,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:33:34,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:33:34,260 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:33:34,260 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-04 15:33:34,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:34,265 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:33:34,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:34,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:33:34,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:33:34,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:34,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:34,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:34,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:34,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:34,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:34,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:34,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:34,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 15:33:34,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:34,373 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 [2025-03-04 15:33:34,373 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:34,443 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 43 transitions. Complement of second has 11 states. [2025-03-04 15:33:34,443 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 [2025-03-04 15:33:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-03-04 15:33:34,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 4 letters. Loop has 5 letters. [2025-03-04 15:33:34,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:34,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 9 letters. Loop has 5 letters. [2025-03-04 15:33:34,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:34,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 4 letters. Loop has 10 letters. [2025-03-04 15:33:34,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:34,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 43 transitions. [2025-03-04 15:33:34,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 15:33:34,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 22 states and 26 transitions. [2025-03-04 15:33:34,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-03-04 15:33:34,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2025-03-04 15:33:34,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2025-03-04 15:33:34,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 15:33:34,446 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 26 transitions. [2025-03-04 15:33:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2025-03-04 15:33:34,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2025-03-04 15:33:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2025-03-04 15:33:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2025-03-04 15:33:34,446 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-03-04 15:33:34,446 INFO L432 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-03-04 15:33:34,446 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 15:33:34,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2025-03-04 15:33:34,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 15:33:34,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:33:34,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:33:34,447 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2025-03-04 15:33:34,447 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 15:33:34,447 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-03-04 15:33:34,447 INFO L754 eck$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;" [2025-03-04 15:33:34,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1666523053, now seen corresponding path program 2 times [2025-03-04 15:33:34,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:34,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893821127] [2025-03-04 15:33:34,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:33:34,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:34,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 2 equivalence classes. [2025-03-04 15:33:34,452 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:33:34,452 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:33:34,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:34,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:33:34,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893821127] [2025-03-04 15:33:34,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893821127] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:33:34,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:33:34,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:33:34,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870837950] [2025-03-04 15:33:34,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:33:34,499 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-03-04 15:33:34,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:34,499 INFO L85 PathProgramCache]: Analyzing trace with hash 37194647, now seen corresponding path program 2 times [2025-03-04 15:33:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:33:34,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479003111] [2025-03-04 15:33:34,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:33:34,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:33:34,501 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:34,503 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:34,503 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:33:34,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:34,503 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:33:34,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:34,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:34,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:34,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:33:34,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:33:34,537 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:34,537 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:34,537 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:34,537 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:34,537 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:33:34,537 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,537 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:34,537 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:34,537 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-03-04 15:33:34,537 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:34,537 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:34,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,567 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:34,567 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:33:34,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,569 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) [2025-03-04 15:33:34,570 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 [2025-03-04 15:33:34,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,582 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:34,582 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: [] [2025-03-04 15:33:34,588 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 [2025-03-04 15:33:34,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,590 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) [2025-03-04 15:33:34,590 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 [2025-03-04 15:33:34,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,603 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 15:33:34,604 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: [] [2025-03-04 15:33:34,609 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 [2025-03-04 15:33:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,611 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) [2025-03-04 15:33:34,612 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 [2025-03-04 15:33:34,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:33:34,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,631 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 [2025-03-04 15:33:34,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,634 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) [2025-03-04 15:33:34,634 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 [2025-03-04 15:33:34,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:33:34,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:33:34,669 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:33:34,673 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 [2025-03-04 15:33:34,673 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:33:34,673 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:33:34,673 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:33:34,673 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:33:34,673 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:33:34,673 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,673 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:33:34,673 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:33:34,673 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-03-04 15:33:34,673 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:33:34,673 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:33:34,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:33:34,700 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:33:34,701 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:33:34,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,702 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) [2025-03-04 15:33:34,703 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 [2025-03-04 15:33:34,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:34,720 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 [2025-03-04 15:33:34,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,722 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) [2025-03-04 15:33:34,723 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 [2025-03-04 15:33:34,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,735 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:33:34,741 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 [2025-03-04 15:33:34,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,743 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) [2025-03-04 15:33:34,744 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 [2025-03-04 15:33:34,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-04 15:33:34,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:33:34,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:33:34,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:33:34,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:33:34,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:33:34,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:33:34,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:33:34,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:33:34,758 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:33:34,758 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 15:33:34,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:33:34,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:33:34,761 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) [2025-03-04 15:33:34,762 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 [2025-03-04 15:33:34,762 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:33:34,762 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:33:34,762 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:33:34,762 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-03-04 15:33:34,768 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 [2025-03-04 15:33:34,768 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:33:34,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:34,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:33:34,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:33:34,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:34,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:34,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:34,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:34,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:34,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:34,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:34,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:34,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 15:33:34,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:34,843 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 [2025-03-04 15:33:34,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-03-04 15:33:34,850 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 [2025-03-04 15:33:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:34,916 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 [2025-03-04 15:33:34,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:34,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 31 transitions. Complement of second has 11 states. [2025-03-04 15:33:34,982 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 [2025-03-04 15:33:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-03-04 15:33:34,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 7 letters. Loop has 5 letters. [2025-03-04 15:33:34,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:34,983 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 15:33:34,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:34,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:33:35,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:33:35,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:35,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:35,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:35,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:35,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:35,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:35,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:35,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:35,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 15:33:35,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:35,090 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 [2025-03-04 15:33:35,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:35,156 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 31 transitions. Complement of second has 11 states. [2025-03-04 15:33:35,156 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 [2025-03-04 15:33:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-03-04 15:33:35,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 7 letters. Loop has 5 letters. [2025-03-04 15:33:35,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:35,157 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 15:33:35,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:33:35,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:33:35,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:33:35,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:35,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:35,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:33:35,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:35,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:33:35,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:33:35,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:33:35,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:33:35,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 15:33:35,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:33:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:33:35,252 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 [2025-03-04 15:33:35,252 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:35,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 30 transitions. Complement of second has 10 states. [2025-03-04 15:33:35,315 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 [2025-03-04 15:33:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2025-03-04 15:33:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2025-03-04 15:33:35,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 7 letters. Loop has 5 letters. [2025-03-04 15:33:35,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:35,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 5 letters. [2025-03-04 15:33:35,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:35,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 7 letters. Loop has 10 letters. [2025-03-04 15:33:35,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:33:35,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2025-03-04 15:33:35,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:33:35,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2025-03-04 15:33:35,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:33:35,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:33:35,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:33:35,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:33:35,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:35,318 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:35,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:33:35,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:33:35,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:33:35,319 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:33:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 15:33:35,321 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:33:35,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:33:35,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:33:35,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:33:35,321 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 15:33:35,321 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-04 15:33:35,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:33:35,321 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:33:35,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:33:35,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:33:35 BoogieIcfgContainer [2025-03-04 15:33:35,327 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:33:35,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:33:35,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:33:35,327 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:33:35,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:33:32" (3/4) ... [2025-03-04 15:33:35,329 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:33:35,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:33:35,330 INFO L158 Benchmark]: Toolchain (without parser) took 3103.54ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 80.7MB in the end (delta: 42.7MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2025-03-04 15:33:35,330 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:35,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 128.54ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 113.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:33:35,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.14ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 112.4MB in the end (delta: 800.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:35,331 INFO L158 Benchmark]: Boogie Preprocessor took 14.85ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 111.6MB in the end (delta: 834.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:35,331 INFO L158 Benchmark]: IcfgBuilder took 176.86ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 100.1MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 15:33:35,331 INFO L158 Benchmark]: BuchiAutomizer took 2758.34ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 80.8MB in the end (delta: 19.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2025-03-04 15:33:35,331 INFO L158 Benchmark]: Witness Printer took 2.47ms. Allocated memory is still 167.8MB. Free memory was 80.8MB in the beginning and 80.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:33:35,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 128.54ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 113.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.14ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 112.4MB in the end (delta: 800.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.85ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 111.6MB in the end (delta: 834.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 176.86ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 100.1MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2758.34ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 80.8MB in the end (delta: 19.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 2.47ms. Allocated memory is still 167.8MB. Free memory was 80.8MB in the beginning and 80.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.6s. 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, 97 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 60 mSDtfsCounter, 126 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: 22ms 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! [2025-03-04 15:33:35,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE