./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/gcd01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:52:09,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:52:09,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:52:09,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:52:09,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:52:09,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:52:09,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:52:10,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:52:10,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:52:10,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:52:10,001 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:52:10,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:52:10,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:52:10,002 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:52:10,002 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:52:10,002 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:52:10,002 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:52:10,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:52:10,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:52:10,004 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:52:10,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:52:10,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:52:10,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:52:10,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:52:10,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:52:10,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:52:10,005 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:52:10,005 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2025-03-17 19:52:10,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:52:10,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:52:10,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:52:10,259 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:52:10,259 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:52:10,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/gcd01-2.c [2025-03-17 19:52:11,459 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671530c29/2bc167e2b18c41e98798ffa15674abfe/FLAG26dec286e [2025-03-17 19:52:11,671 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:52:11,671 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c [2025-03-17 19:52:11,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671530c29/2bc167e2b18c41e98798ffa15674abfe/FLAG26dec286e [2025-03-17 19:52:12,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671530c29/2bc167e2b18c41e98798ffa15674abfe [2025-03-17 19:52:12,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:52:12,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:52:12,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:12,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:52:12,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:52:12,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef307c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12, skipping insertion in model container [2025-03-17 19:52:12,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:52:12,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:12,161 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:52:12,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:12,182 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:52:12,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12 WrapperNode [2025-03-17 19:52:12,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:12,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:12,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:52:12,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:52:12,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,202 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2025-03-17 19:52:12,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:12,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:52:12,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:52:12,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:52:12,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,219 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 19:52:12,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,222 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:52:12,229 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:52:12,229 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:52:12,229 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:52:12,229 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (1/1) ... [2025-03-17 19:52:12,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-17 19:52:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:52:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2025-03-17 19:52:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2025-03-17 19:52:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:52:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:52:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:52:12,315 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:52:12,316 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:52:12,382 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: havoc #t~ret5; [2025-03-17 19:52:12,383 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L25: havoc #t~ret4; [2025-03-17 19:52:12,412 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-03-17 19:52:12,413 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:52:12,418 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:52:12,419 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:52:12,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:12 BoogieIcfgContainer [2025-03-17 19:52:12,419 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:52:12,420 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:52:12,420 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:52:12,424 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:52:12,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:12,424 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:52:12" (1/3) ... [2025-03-17 19:52:12,426 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@196e47fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:12, skipping insertion in model container [2025-03-17 19:52:12,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:12,426 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:12" (2/3) ... [2025-03-17 19:52:12,426 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@196e47fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:12, skipping insertion in model container [2025-03-17 19:52:12,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:12,427 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:12" (3/3) ... [2025-03-17 19:52:12,428 INFO L363 chiAutomizerObserver]: Analyzing ICFG gcd01-2.c [2025-03-17 19:52:12,473 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:52:12,473 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:52:12,473 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:52:12,473 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:52:12,473 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:52:12,473 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:52:12,473 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:52:12,474 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:52:12,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 19:52:12,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-17 19:52:12,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:12,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:12,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-17 19:52:12,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:12,495 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:52:12,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 19:52:12,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-17 19:52:12,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:12,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:12,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-17 19:52:12,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:12,501 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< [2025-03-17 19:52:12,502 INFO L754 eck$LassoCheckResult]: Loop: "~y1 := #in~y1;~y2 := #in~y2;" "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume ~y1 > ~y2;" "call #t~ret4 := gcd(~y1 - ~y2, ~y2);"< [2025-03-17 19:52:12,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1784332, now seen corresponding path program 1 times [2025-03-17 19:52:12,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:12,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157225048] [2025-03-17 19:52:12,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:12,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:52:12,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:52:12,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,574 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:12,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:52:12,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:52:12,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:12,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 40047971, now seen corresponding path program 1 times [2025-03-17 19:52:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686352231] [2025-03-17 19:52:12,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:12,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:12,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:12,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,613 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:12,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:12,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:12,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:12,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -419337672, now seen corresponding path program 1 times [2025-03-17 19:52:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:12,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941495976] [2025-03-17 19:52:12,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:12,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:52:12,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:52:12,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,639 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:12,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:52:12,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:52:12,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:12,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:12,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:12,791 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:12,792 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:12,792 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:12,792 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:12,792 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:12,792 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,792 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:12,792 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:12,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2025-03-17 19:52:12,794 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:12,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:12,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,834 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:12,886 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:12,886 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:12,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-17 19:52:12,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:12,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:12,907 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:12,907 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:12,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-17 19:52:12,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-17 19:52:12,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:12,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:12,930 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:12,930 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:12,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-17 19:52:12,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-17 19:52:12,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:12,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:12,953 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:12,953 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:12,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:12,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,962 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-17 19:52:12,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:12,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:12,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:12,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:12,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:12,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:12,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-17 19:52:12,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:12,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:13,118 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:13,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-17 19:52:13,124 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:13,124 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:13,124 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:13,124 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:13,125 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:13,125 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,125 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:13,125 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:13,125 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2025-03-17 19:52:13,125 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:13,125 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:13,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,176 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:13,181 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:13,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-17 19:52:13,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:13,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:13,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:13,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:13,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:13,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:13,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:13,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:13,209 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:13,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-17 19:52:13,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:13,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:13,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:13,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:13,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:13,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:13,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:13,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:13,233 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:13,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:13,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,242 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-17 19:52:13,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:13,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:13,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:13,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:13,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:13,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:13,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:13,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:13,258 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:13,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:13,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-17 19:52:13,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:13,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:13,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:13,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:13,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:13,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:13,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:13,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:13,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:13,287 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:52:13,289 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:52:13,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-17 19:52:13,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:13,296 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:13,296 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:13,297 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y1) = 1*gcd_#in~y1 Supporting invariants [] [2025-03-17 19:52:13,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-17 19:52:13,306 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:13,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:13,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:52:13,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:52:13,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:13,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:52:13,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:13,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:13,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:13,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:13,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:52:13,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:13,447 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-17 19:52:13,448 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:13,582 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 112 transitions. Complement of second has 34 states. [2025-03-17 19:52:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2025-03-17 19:52:13,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 4 letters. Loop has 5 letters. [2025-03-17 19:52:13,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:13,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 9 letters. Loop has 5 letters. [2025-03-17 19:52:13,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:13,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 4 letters. Loop has 10 letters. [2025-03-17 19:52:13,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:13,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 112 transitions. [2025-03-17 19:52:13,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:52:13,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:13,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 35 states and 40 transitions. [2025-03-17 19:52:13,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2025-03-17 19:52:13,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2025-03-17 19:52:13,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 40 transitions. [2025-03-17 19:52:13,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:13,629 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 40 transitions. [2025-03-17 19:52:13,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 40 transitions. [2025-03-17 19:52:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 17. [2025-03-17 19:52:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2025-03-17 19:52:13,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2025-03-17 19:52:13,648 INFO L432 stractBuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2025-03-17 19:52:13,648 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:52:13,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2025-03-17 19:52:13,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:52:13,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:13,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:13,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:13,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:13,649 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-17 19:52:13,649 INFO L754 eck$LassoCheckResult]: Loop: "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume !(~y1 > ~y2);" "call #t~ret5 := gcd(~y1, ~y2 - ~y1);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-17 19:52:13,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:13,653 INFO L85 PathProgramCache]: Analyzing trace with hash 55314304, now seen corresponding path program 1 times [2025-03-17 19:52:13,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:13,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885310342] [2025-03-17 19:52:13,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:13,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:13,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:13,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,662 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:13,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:13,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:13,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:13,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:13,670 INFO L85 PathProgramCache]: Analyzing trace with hash 39063670, now seen corresponding path program 1 times [2025-03-17 19:52:13,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:13,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801722545] [2025-03-17 19:52:13,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:13,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:13,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:13,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:13,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:13,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:13,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:13,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:13,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash -114565033, now seen corresponding path program 1 times [2025-03-17 19:52:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068865083] [2025-03-17 19:52:13,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:13,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:13,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:13,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,691 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:13,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:13,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:13,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:13,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:13,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:13,816 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:13,816 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:13,816 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:13,816 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:13,816 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:13,816 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,816 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:13,816 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:13,816 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2025-03-17 19:52:13,816 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:13,816 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:13,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:13,911 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:13,911 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:13,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,914 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-17 19:52:13,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:13,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:13,927 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:13,927 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:13,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-03-17 19:52:13,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,935 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-17 19:52:13,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:13,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:13,948 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:13,948 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:13,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-17 19:52:13,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,956 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-17 19:52:13,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:13,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:13,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-03-17 19:52:13,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:13,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:13,986 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:13,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-17 19:52:13,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:13,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:14,218 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:14,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-03-17 19:52:14,227 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:14,227 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:14,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:14,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:14,227 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:14,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:14,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:14,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2025-03-17 19:52:14,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:14,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:14,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,318 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:14,318 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:14,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,320 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-17 19:52:14,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:14,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:14,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:14,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:14,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:14,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:14,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:14,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:14,339 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:14,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-03-17 19:52:14,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,346 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-17 19:52:14,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:14,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:14,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:14,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:14,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:14,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:14,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:14,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:14,360 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:14,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-03-17 19:52:14,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,367 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-17 19:52:14,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:14,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:14,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:14,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:14,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:14,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:14,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:14,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:14,384 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:14,386 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-17 19:52:14,386 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:52:14,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,388 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-17 19:52:14,390 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:14,390 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:14,390 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:14,390 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y2) = 1*gcd_~y2 Supporting invariants [] [2025-03-17 19:52:14,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-17 19:52:14,397 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:14,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:14,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:14,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:14,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:14,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:52:14,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:14,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:14,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:14,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:14,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:52:14,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:14,489 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 19:52:14,490 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:14,522 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 53 states and 60 transitions. Complement of second has 11 states. [2025-03-17 19:52:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2025-03-17 19:52:14,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 5 letters. [2025-03-17 19:52:14,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:14,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-17 19:52:14,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:14,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 10 letters. [2025-03-17 19:52:14,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:14,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 60 transitions. [2025-03-17 19:52:14,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:52:14,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 32 states and 36 transitions. [2025-03-17 19:52:14,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-03-17 19:52:14,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2025-03-17 19:52:14,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 36 transitions. [2025-03-17 19:52:14,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:14,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2025-03-17 19:52:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 36 transitions. [2025-03-17 19:52:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2025-03-17 19:52:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-03-17 19:52:14,530 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-03-17 19:52:14,530 INFO L432 stractBuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-03-17 19:52:14,530 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 19:52:14,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2025-03-17 19:52:14,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-17 19:52:14,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:14,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:14,530 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:52:14,530 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:14,531 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< "~y1 := #in~y1;~y2 := #in~y2;" "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume ~y1 > ~y2;" "call #t~ret4 := gcd(~y1 - ~y2, ~y2);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-17 19:52:14,531 INFO L754 eck$LassoCheckResult]: Loop: "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume !(~y1 > ~y2);" "call #t~ret5 := gcd(~y1, ~y2 - ~y1);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-17 19:52:14,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash -114565932, now seen corresponding path program 2 times [2025-03-17 19:52:14,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:14,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973274493] [2025-03-17 19:52:14,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:14,535 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 10 statements into 2 equivalence classes. [2025-03-17 19:52:14,543 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:14,543 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:52:14,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,544 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:14,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:14,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:14,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:14,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash 39063670, now seen corresponding path program 2 times [2025-03-17 19:52:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172355641] [2025-03-17 19:52:14,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:14,555 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:14,556 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:14,556 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:52:14,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,556 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:14,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:14,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:14,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:14,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:14,559 INFO L85 PathProgramCache]: Analyzing trace with hash -566214781, now seen corresponding path program 1 times [2025-03-17 19:52:14,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:14,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171514692] [2025-03-17 19:52:14,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:14,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:14,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:52:14,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:52:14,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,566 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:14,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:52:14,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:52:14,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:14,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:14,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:14,664 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:14,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:14,665 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:14,665 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:14,665 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:14,665 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,665 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:14,665 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:14,665 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2025-03-17 19:52:14,665 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:14,665 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:14,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:14,739 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:14,739 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:14,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,742 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-03-17 19:52:14,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:14,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:14,760 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:14,760 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:14,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-03-17 19:52:14,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-03-17 19:52:14,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:14,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:14,780 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:14,780 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:14,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-03-17 19:52:14,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,789 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-03-17 19:52:14,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:14,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:14,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-17 19:52:14,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:14,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:14,818 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:14,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-03-17 19:52:14,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:14,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:15,050 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:15,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-03-17 19:52:15,059 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:15,059 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:15,059 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:15,059 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:15,059 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:15,059 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:15,059 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:15,059 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:15,059 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2025-03-17 19:52:15,059 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:15,060 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:15,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:15,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:15,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:15,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:15,125 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:15,125 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:15,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:15,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:15,127 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:15,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-03-17 19:52:15,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:15,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:15,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:15,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:15,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:15,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:15,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:15,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:15,140 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:15,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-03-17 19:52:15,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:15,148 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:15,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-03-17 19:52:15,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:15,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:15,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:15,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:15,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:15,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:15,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:15,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:15,161 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:15,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-17 19:52:15,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:15,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:15,169 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:15,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-17 19:52:15,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-17 19:52:15,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-03-17 19:52:15,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:15,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:15,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:15,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:15,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:15,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:15,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:15,201 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:15,205 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-17 19:52:15,205 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:52:15,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:15,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:15,207 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:15,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-17 19:52:15,210 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:15,210 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:15,210 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:15,210 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y2) = 1*gcd_~y2 Supporting invariants [] [2025-03-17 19:52:15,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:15,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:15,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:15,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:15,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:15,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:15,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:15,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:15,315 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 19:52:15,315 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,341 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 50 transitions. Complement of second has 11 states. [2025-03-17 19:52:15,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2025-03-17 19:52:15,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-17 19:52:15,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:15,343 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:52:15,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:15,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:15,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:15,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:15,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:15,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:15,446 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 19:52:15,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,464 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 50 transitions. Complement of second has 11 states. [2025-03-17 19:52:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2025-03-17 19:52:15,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-17 19:52:15,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:15,469 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:52:15,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:15,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:52:15,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:52:15,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:15,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:15,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:15,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:15,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:52:15,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:15,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:15,554 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 3 loop predicates [2025-03-17 19:52:15,554 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 85 transitions. Complement of second has 12 states. [2025-03-17 19:52:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2025-03-17 19:52:15,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-17 19:52:15,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:15,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 5 letters. [2025-03-17 19:52:15,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:15,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 10 letters. [2025-03-17 19:52:15,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:15,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 85 transitions. [2025-03-17 19:52:15,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:15,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 0 states and 0 transitions. [2025-03-17 19:52:15,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:52:15,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:52:15,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:52:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:52:15,579 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:15,579 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:15,579 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:15,579 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 19:52:15,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:52:15,579 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:15,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:52:15,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:52:15 BoogieIcfgContainer [2025-03-17 19:52:15,586 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:52:15,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:52:15,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:52:15,587 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:52:15,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:12" (3/4) ... [2025-03-17 19:52:15,589 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:52:15,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:52:15,590 INFO L158 Benchmark]: Toolchain (without parser) took 3550.03ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 96.3MB in the end (delta: 26.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2025-03-17 19:52:15,590 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:15,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.35ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 112.4MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:52:15,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.08ms. Allocated memory is still 167.8MB. Free memory was 111.5MB in the beginning and 110.5MB in the end (delta: 984.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:15,591 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 110.0MB in the end (delta: 439.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:15,592 INFO L158 Benchmark]: IcfgBuilder took 190.44ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 98.7MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:52:15,592 INFO L158 Benchmark]: BuchiAutomizer took 3166.41ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 96.3MB in the end (delta: 2.3MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2025-03-17 19:52:15,592 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 96.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:15,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.35ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 112.4MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.08ms. Allocated memory is still 167.8MB. Free memory was 111.5MB in the beginning and 110.5MB in the end (delta: 984.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 110.0MB in the end (delta: 439.1kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 190.44ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 98.7MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3166.41ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 96.3MB in the end (delta: 2.3MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 96.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(y1) and consists of 7 locations. One deterministic module has affine ranking function y2 and consists of 4 locations. One nondeterministic module has affine ranking function y2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 50 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq177 hnf91 smp87 dnf100 smp100 tf106 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:52:15,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-03-17 19:52:15,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE