./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/parity1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 18:58:12,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:58:12,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-06 18:58:12,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:58:12,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:58:12,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 18:58:12,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:58:12,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:58:12,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:58:12,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:58:12,135 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:58:12,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:58:12,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:58:12,135 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:58:12,136 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 18:58:12,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:58:12,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:58:12,137 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 18:58:12,138 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:58:12,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:58:12,138 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:58:12,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:58:12,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:58:12,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:58:12,138 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 18:58:12,138 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-jdk21/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 [2025-02-06 18:58:12,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:58:12,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:58:12,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:58:12,385 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:58:12,385 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:58:12,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/parity1.i [2025-02-06 18:58:12,913 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1103ce41/a4874a29894d4e5daa6bb6a87552af91/FLAGae4ef994f [2025-02-06 18:58:14,442 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:58:14,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-bwb/parity1.i [2025-02-06 18:58:14,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1103ce41/a4874a29894d4e5daa6bb6a87552af91/FLAGae4ef994f [2025-02-06 18:58:14,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1103ce41/a4874a29894d4e5daa6bb6a87552af91 [2025-02-06 18:58:14,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:58:14,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:58:14,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:58:14,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:58:14,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:58:14,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60821e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14, skipping insertion in model container [2025-02-06 18:58:14,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:58:14,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:58:14,616 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:58:14,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:58:14,634 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:58:14,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14 WrapperNode [2025-02-06 18:58:14,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:58:14,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:58:14,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:58:14,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:58:14,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,654 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-02-06 18:58:14,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:58:14,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:58:14,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:58:14,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:58:14,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,666 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-06 18:58:14,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,671 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:58:14,673 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:58:14,674 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:58:14,674 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:58:14,674 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (1/1) ... [2025-02-06 18:58:14,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:14,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:14,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:14,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 18:58:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:58:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:58:14,762 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:58:14,763 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:58:14,836 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-02-06 18:58:14,837 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:58:14,850 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:58:14,851 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:58:14,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:58:14 BoogieIcfgContainer [2025-02-06 18:58:14,852 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:58:14,852 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 18:58:14,852 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 18:58:14,856 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 18:58:14,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 18:58:14,857 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 06:58:14" (1/3) ... [2025-02-06 18:58:14,858 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b71b3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 06:58:14, skipping insertion in model container [2025-02-06 18:58:14,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 18:58:14,858 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:58:14" (2/3) ... [2025-02-06 18:58:14,858 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b71b3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 06:58:14, skipping insertion in model container [2025-02-06 18:58:14,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 18:58:14,858 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:58:14" (3/3) ... [2025-02-06 18:58:14,859 INFO L363 chiAutomizerObserver]: Analyzing ICFG parity1.i [2025-02-06 18:58:14,901 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 18:58:14,902 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 18:58:14,902 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 18:58:14,902 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 18:58:14,902 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 18:58:14,902 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 18:58:14,902 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 18:58:14,902 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 18:58:14,905 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) [2025-02-06 18:58:14,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-02-06 18:58:14,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 18:58:14,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 18:58:14,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 18:58:14,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 18:58:14,918 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 18:58:14,918 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) [2025-02-06 18:58:14,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-02-06 18:58:14,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 18:58:14,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 18:58:14,919 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 18:58:14,919 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 18:58:14,924 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" [2025-02-06 18:58:14,924 INFO L754 eck$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;" [2025-02-06 18:58:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-02-06 18:58:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:14,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783258458] [2025-02-06 18:58:14,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:14,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:14,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:14,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:14,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:14,991 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:14,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:14,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:14,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:14,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,008 INFO L85 PathProgramCache]: Analyzing trace with hash 39528, now seen corresponding path program 1 times [2025-02-06 18:58:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:15,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616864032] [2025-02-06 18:58:15,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:15,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:15,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,019 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:15,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1300684797, now seen corresponding path program 1 times [2025-02-06 18:58:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:15,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957691356] [2025-02-06 18:58:15,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:15,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:58:15,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:58:15,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,040 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:15,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:58:15,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:58:15,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,136 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:15,136 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:15,136 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:15,136 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:15,136 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 18:58:15,136 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,136 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:15,137 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:15,137 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-02-06 18:58:15,137 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:15,137 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:15,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,212 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:15,213 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 18:58:15,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-06 18:58:15,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,232 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:15,232 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: [] [2025-02-06 18:58:15,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-06 18:58:15,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-06 18:58:15,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-06 18:58:15,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:15,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,287 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:15,287 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] [2025-02-06 18:58:15,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-06 18:58:15,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-06 18:58:15,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-06 18:58:15,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:15,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,333 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 18:58:15,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-06 18:58:15,339 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:15,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:15,339 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:15,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:15,339 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 18:58:15,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:15,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:15,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2025-02-06 18:58:15,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:15,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:15,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,383 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:15,386 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 18:58:15,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-06 18:58:15,392 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 [2025-02-06 18:58:15,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:15,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:15,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:15,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:15,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:15,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:15,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:15,409 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:15,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-06 18:58:15,419 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 [2025-02-06 18:58:15,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:15,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:15,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:15,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:15,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:15,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:15,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:15,431 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:15,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-06 18:58:15,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-06 18:58:15,441 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 [2025-02-06 18:58:15,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:15,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:15,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:15,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:15,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:15,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:15,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:15,454 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 18:58:15,459 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 18:58:15,461 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 18:58:15,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-06 18:58:15,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 18:58:15,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 18:58:15,466 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 18:58:15,467 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-02-06 18:58:15,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,474 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 18:58:15,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:15,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:15,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:15,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:15,521 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:58:15,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:15,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:15,569 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 [2025-02-06 18:58:15,570 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) [2025-02-06 18:58:15,659 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. [2025-02-06 18:58:15,662 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 [2025-02-06 18:58:15,667 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) [2025-02-06 18:58:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2025-02-06 18:58:15,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-06 18:58:15,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:15,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-06 18:58:15,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:15,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-06 18:58:15,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:15,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2025-02-06 18:58:15,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-02-06 18:58:15,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 29 states and 35 transitions. [2025-02-06 18:58:15,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2025-02-06 18:58:15,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2025-02-06 18:58:15,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2025-02-06 18:58:15,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 18:58:15,683 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2025-02-06 18:58:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2025-02-06 18:58:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2025-02-06 18:58:15,701 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) [2025-02-06 18:58:15,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2025-02-06 18:58:15,704 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2025-02-06 18:58:15,704 INFO L432 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2025-02-06 18:58:15,704 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 18:58:15,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2025-02-06 18:58:15,705 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-02-06 18:58:15,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 18:58:15,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 18:58:15,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 18:58:15,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 18:58:15,706 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume ~v~0 < 0;~v~0 := -1 * ~v~0;" [2025-02-06 18:58:15,706 INFO L754 eck$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;" [2025-02-06 18:58:15,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,707 INFO L85 PathProgramCache]: Analyzing trace with hash 43659, now seen corresponding path program 1 times [2025-02-06 18:58:15,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:15,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372969922] [2025-02-06 18:58:15,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:15,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:15,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,716 INFO L85 PathProgramCache]: Analyzing trace with hash 39528, now seen corresponding path program 2 times [2025-02-06 18:58:15,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:15,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098889137] [2025-02-06 18:58:15,716 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:58:15,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:15,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,720 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,720 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:58:15,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,720 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:15,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:15,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:15,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1300655006, now seen corresponding path program 1 times [2025-02-06 18:58:15,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:15,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134944571] [2025-02-06 18:58:15,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:15,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:15,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:58:15,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:58:15,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,730 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:15,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:58:15,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:58:15,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:15,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:15,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:15,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-06 18:58:15,786 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:15,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:15,787 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:15,787 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:15,787 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 18:58:15,787 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,787 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:15,787 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:15,787 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-02-06 18:58:15,787 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:15,787 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:15,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,832 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:15,832 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 18:58:15,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-06 18:58:15,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-06 18:58:15,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:15,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,885 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:15,886 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] [2025-02-06 18:58:15,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:15,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,893 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-06 18:58:15,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,906 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:15,907 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: [] [2025-02-06 18:58:15,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-06 18:58:15,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,915 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-06 18:58:15,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,927 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:15,927 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: [] [2025-02-06 18:58:15,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-06 18:58:15,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,936 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-06 18:58:15,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:15,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-06 18:58:15,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:15,956 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:15,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-06 18:58:15,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:15,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:15,970 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 18:58:15,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-06 18:58:15,976 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:15,976 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:15,976 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:15,976 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:15,976 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 18:58:15,976 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:15,976 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:15,976 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:15,976 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2025-02-06 18:58:15,976 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:15,976 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:15,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:15,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,019 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:16,019 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 18:58:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,022 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-06 18:58:16,024 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 [2025-02-06 18:58:16,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:16,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,048 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-06 18:58:16,051 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 [2025-02-06 18:58:16,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,063 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:16,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,070 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-06 18:58:16,073 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 [2025-02-06 18:58:16,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 18:58:16,089 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 18:58:16,089 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 18:58:16,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,091 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-06 18:58:16,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 18:58:16,093 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 18:58:16,093 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 18:58:16,093 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-02-06 18:58:16,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-06 18:58:16,100 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 18:58:16,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:16,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:16,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:16,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:16,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:16,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:58:16,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:58:16,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:16,123 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:58:16,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:16,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:16,145 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 [2025-02-06 18:58:16,146 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) [2025-02-06 18:58:16,193 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. [2025-02-06 18:58:16,195 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 [2025-02-06 18:58:16,195 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) [2025-02-06 18:58:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2025-02-06 18:58:16,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-06 18:58:16,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-06 18:58:16,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-06 18:58:16,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 47 transitions. [2025-02-06 18:58:16,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2025-02-06 18:58:16,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 37 states and 45 transitions. [2025-02-06 18:58:16,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-02-06 18:58:16,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2025-02-06 18:58:16,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2025-02-06 18:58:16,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 18:58:16,199 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2025-02-06 18:58:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2025-02-06 18:58:16,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 16. [2025-02-06 18:58:16,200 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) [2025-02-06 18:58:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2025-02-06 18:58:16,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2025-02-06 18:58:16,201 INFO L432 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2025-02-06 18:58:16,202 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 18:58:16,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2025-02-06 18:58:16,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-02-06 18:58:16,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 18:58:16,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 18:58:16,203 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-06 18:58:16,203 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-02-06 18:58:16,203 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-02-06 18:58:16,203 INFO L754 eck$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;" [2025-02-06 18:58:16,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1353470, now seen corresponding path program 1 times [2025-02-06 18:58:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:16,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521900900] [2025-02-06 18:58:16,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:16,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:16,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:58:16,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:58:16,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,208 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:16,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:58:16,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:58:16,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:16,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash 37194647, now seen corresponding path program 1 times [2025-02-06 18:58:16,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:16,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155879461] [2025-02-06 18:58:16,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:16,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:16,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:16,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:16,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,228 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:16,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:16,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:16,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:16,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,232 INFO L85 PathProgramCache]: Analyzing trace with hash -489375046, now seen corresponding path program 1 times [2025-02-06 18:58:16,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812139320] [2025-02-06 18:58:16,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:58:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:16,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:58:16,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:58:16,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,239 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:16,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:58:16,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:58:16,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:16,297 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:16,298 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:16,298 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:16,298 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:16,298 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 18:58:16,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:16,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:16,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-02-06 18:58:16,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:16,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:16,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,328 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:16,328 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 18:58:16,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,330 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-06 18:58:16,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,350 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-06 18:58:16,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:16,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,374 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:16,374 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] [2025-02-06 18:58:16,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-06 18:58:16,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,381 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-06 18:58:16,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,393 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:16,393 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: [] [2025-02-06 18:58:16,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-06 18:58:16,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,400 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-06 18:58:16,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,419 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-06 18:58:16,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:16,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,453 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 18:58:16,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,459 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:16,459 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:16,459 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:16,459 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:16,459 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 18:58:16,459 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,459 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:16,459 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:16,459 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2025-02-06 18:58:16,459 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:16,459 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:16,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,494 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:16,495 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 18:58:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,498 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-06 18:58:16,500 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 [2025-02-06 18:58:16,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,513 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:16,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,521 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-06 18:58:16,523 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 [2025-02-06 18:58:16,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,534 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:16,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,542 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-06 18:58:16,544 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 [2025-02-06 18:58:16,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:16,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:16,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:16,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:16,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:16,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:16,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:16,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 18:58:16,557 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-06 18:58:16,557 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 18:58:16,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,559 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-06 18:58:16,562 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 18:58:16,562 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 18:58:16,563 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 18:58:16,563 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-02-06 18:58:16,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-02-06 18:58:16,569 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 18:58:16,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:58:16,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:58:16,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:16,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:16,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:16,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:16,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:16,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:16,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:58:16,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:16,673 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 [2025-02-06 18:58:16,673 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) [2025-02-06 18:58:16,737 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. [2025-02-06 18:58:16,739 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 [2025-02-06 18:58:16,740 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) [2025-02-06 18:58:16,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-02-06 18:58:16,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 4 letters. Loop has 5 letters. [2025-02-06 18:58:16,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 9 letters. Loop has 5 letters. [2025-02-06 18:58:16,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 4 letters. Loop has 10 letters. [2025-02-06 18:58:16,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:16,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 43 transitions. [2025-02-06 18:58:16,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-02-06 18:58:16,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 22 states and 26 transitions. [2025-02-06 18:58:16,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-02-06 18:58:16,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2025-02-06 18:58:16,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2025-02-06 18:58:16,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 18:58:16,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 26 transitions. [2025-02-06 18:58:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2025-02-06 18:58:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2025-02-06 18:58:16,742 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) [2025-02-06 18:58:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2025-02-06 18:58:16,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-02-06 18:58:16,743 INFO L432 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-02-06 18:58:16,743 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 18:58:16,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2025-02-06 18:58:16,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-02-06 18:58:16,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 18:58:16,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 18:58:16,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2025-02-06 18:58:16,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-02-06 18:58:16,743 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(~v~0 < 0);" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" "assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0;" "~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1;" "assume ~v~0 > 0;main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-02-06 18:58:16,743 INFO L754 eck$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;" [2025-02-06 18:58:16,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1666523053, now seen corresponding path program 2 times [2025-02-06 18:58:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:16,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86104425] [2025-02-06 18:58:16,745 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:58:16,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:16,749 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 2 equivalence classes. [2025-02-06 18:58:16,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:58:16,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:58:16,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:58:16,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86104425] [2025-02-06 18:58:16,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86104425] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:58:16,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:58:16,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:58:16,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627688981] [2025-02-06 18:58:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:58:16,807 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-06 18:58:16,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash 37194647, now seen corresponding path program 2 times [2025-02-06 18:58:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:58:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793840038] [2025-02-06 18:58:16,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:58:16,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:58:16,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:16,814 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:16,814 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:58:16,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,814 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:58:16,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:16,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:16,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:16,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:58:16,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:58:16,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-06 18:58:16,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-02-06 18:58:16,866 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:16,866 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:16,866 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:16,866 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:16,866 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 18:58:16,866 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,866 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:16,866 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:16,866 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-02-06 18:58:16,866 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:16,867 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:16,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:16,904 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:16,904 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 18:58:16,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,906 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-06 18:58:16,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,919 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:16,920 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: [] [2025-02-06 18:58:16,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,928 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-06 18:58:16,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,941 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 18:58:16,941 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: [] [2025-02-06 18:58:16,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:16,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,950 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-02-06 18:58:16,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 18:58:16,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:16,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-02-06 18:58:16,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:16,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:16,969 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:16,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-02-06 18:58:16,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 18:58:16,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 18:58:17,004 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 18:58:17,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-02-06 18:58:17,008 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 18:58:17,008 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 18:58:17,008 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 18:58:17,008 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 18:58:17,008 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 18:58:17,008 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:17,008 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 18:58:17,008 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 18:58:17,008 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration4_Loop [2025-02-06 18:58:17,008 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 18:58:17,008 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 18:58:17,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:17,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:17,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:17,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 18:58:17,035 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 18:58:17,035 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 18:58:17,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:17,037 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:17,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-02-06 18:58:17,039 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 [2025-02-06 18:58:17,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:17,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:17,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:17,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:17,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:17,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:17,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:17,050 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:17,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-02-06 18:58:17,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:17,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:17,062 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:17,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-02-06 18:58:17,064 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 [2025-02-06 18:58:17,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:17,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:17,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:17,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:17,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:17,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:17,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:17,076 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 18:58:17,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-02-06 18:58:17,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:17,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:17,084 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:17,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-02-06 18:58:17,086 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 [2025-02-06 18:58:17,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 18:58:17,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 18:58:17,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 18:58:17,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 18:58:17,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 18:58:17,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 18:58:17,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 18:58:17,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 18:58:17,100 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 18:58:17,100 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 18:58:17,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 18:58:17,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:58:17,101 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 18:58:17,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-02-06 18:58:17,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 18:58:17,103 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 18:58:17,103 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 18:58:17,103 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2025-02-06 18:58:17,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-02-06 18:58:17,109 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 18:58:17,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:17,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:58:17,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:58:17,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:17,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:17,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:17,223 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 [2025-02-06 18:58:17,223 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) [2025-02-06 18:58:17,286 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. [2025-02-06 18:58:17,286 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 [2025-02-06 18:58:17,287 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) [2025-02-06 18:58:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-02-06 18:58:17,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 7 letters. Loop has 5 letters. [2025-02-06 18:58:17,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:17,287 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-06 18:58:17,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:17,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:58:17,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:58:17,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:17,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:17,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:17,410 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 [2025-02-06 18:58:17,410 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) [2025-02-06 18:58:17,478 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. [2025-02-06 18:58:17,478 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 [2025-02-06 18:58:17,479 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) [2025-02-06 18:58:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2025-02-06 18:58:17,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 7 letters. Loop has 5 letters. [2025-02-06 18:58:17,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:17,479 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-06 18:58:17,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:58:17,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:58:17,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:58:17,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:58:17,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:58:17,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:58:17,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:58:17,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:58:17,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:58:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:58:17,593 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 [2025-02-06 18:58:17,594 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) [2025-02-06 18:58:17,659 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. [2025-02-06 18:58:17,662 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 [2025-02-06 18:58:17,663 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) [2025-02-06 18:58:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2025-02-06 18:58:17,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 7 letters. Loop has 5 letters. [2025-02-06 18:58:17,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:17,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 5 letters. [2025-02-06 18:58:17,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:17,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 7 letters. Loop has 10 letters. [2025-02-06 18:58:17,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 18:58:17,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2025-02-06 18:58:17,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 18:58:17,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2025-02-06 18:58:17,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 18:58:17,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 18:58:17,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 18:58:17,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 18:58:17,664 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 18:58:17,665 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 18:58:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:58:17,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:58:17,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:58:17,667 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) [2025-02-06 18:58:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:58:17,668 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 18:58:17,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 18:58:17,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 18:58:17,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 18:58:17,669 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 18:58:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 18:58:17,670 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 18:58:17,670 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-06 18:58:17,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-06 18:58:17,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 18:58:17,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-06 18:58:17,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 06:58:17 BoogieIcfgContainer [2025-02-06 18:58:17,677 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 18:58:17,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:58:17,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:58:17,678 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:58:17,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:58:14" (3/4) ... [2025-02-06 18:58:17,680 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 18:58:17,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:58:17,682 INFO L158 Benchmark]: Toolchain (without parser) took 3189.52ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 114.0MB in the beginning and 327.5MB in the end (delta: -213.5MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2025-02-06 18:58:17,682 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:58:17,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.38ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 104.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:58:17,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.45ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:58:17,683 INFO L158 Benchmark]: Boogie Preprocessor took 17.43ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 102.0MB in the end (delta: 749.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:58:17,684 INFO L158 Benchmark]: IcfgBuilder took 178.13ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 91.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:58:17,684 INFO L158 Benchmark]: BuchiAutomizer took 2825.13ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 91.1MB in the beginning and 327.5MB in the end (delta: -236.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2025-02-06 18:58:17,684 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 427.8MB. Free memory was 327.5MB in the beginning and 327.5MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:58:17,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.38ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 104.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.45ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.43ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 102.0MB in the end (delta: 749.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 178.13ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 91.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2825.13ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 91.1MB in the beginning and 327.5MB in the end (delta: -236.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 427.8MB. Free memory was 327.5MB in the beginning and 327.5MB in the end (delta: 24.0kB). 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 0.0s. Büchi inclusion checks took 0.9s. 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! [2025-02-06 18:58:17,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-02-06 18:58:17,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE