./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.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 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:02:01,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:02:01,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:02:01,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:02:01,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:02:01,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:02:01,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:02:01,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:02:01,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:02:01,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:02:01,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:02:01,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:02:01,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:02:01,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:02:01,363 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:02:01,363 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:02:01,363 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:02:01,363 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:02:01,364 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:02:01,364 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:02:01,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:02:01,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:02:01,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:02:01,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:02:01,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:02:01,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:02:01,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:02:01,366 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:02:01,366 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:02:01,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:02:01,367 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:02:01,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:02:01,367 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:02:01,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:02:01,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:02:01,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:02:01,368 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:02:01,369 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2024-11-17 08:02:01,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:02:01,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:02:01,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:02:01,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:02:01,630 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:02:01,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-17 08:02:02,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:02:03,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:02:03,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-17 08:02:03,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62d6ca37/8b13089f9cc6461980d57a504282a2bb/FLAG1c9c4c131 [2024-11-17 08:02:03,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62d6ca37/8b13089f9cc6461980d57a504282a2bb [2024-11-17 08:02:03,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:02:03,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:02:03,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:02:03,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:02:03,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:02:03,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34619b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03, skipping insertion in model container [2024-11-17 08:02:03,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:02:03,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:02:03,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:02:03,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:02:03,362 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:02:03,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03 WrapperNode [2024-11-17 08:02:03,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:02:03,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:02:03,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:02:03,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:02:03,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,387 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-17 08:02:03,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:02:03,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:02:03,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:02:03,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:02:03,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,404 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:02:03,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,406 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:02:03,409 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:02:03,409 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:02:03,409 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:02:03,410 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (1/1) ... [2024-11-17 08:02:03,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:03,460 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) [2024-11-17 08:02:03,464 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 [2024-11-17 08:02:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:02:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:02:03,567 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:02:03,570 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:02:03,618 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-17 08:02:03,618 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:02:03,627 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:02:03,627 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:02:03,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:02:03 BoogieIcfgContainer [2024-11-17 08:02:03,628 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:02:03,628 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:02:03,629 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:02:03,632 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:02:03,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:02:03,632 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:02:03" (1/3) ... [2024-11-17 08:02:03,633 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52be436b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:02:03, skipping insertion in model container [2024-11-17 08:02:03,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:02:03,633 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:02:03" (2/3) ... [2024-11-17 08:02:03,634 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52be436b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:02:03, skipping insertion in model container [2024-11-17 08:02:03,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:02:03,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:02:03" (3/3) ... [2024-11-17 08:02:03,635 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-17 08:02:03,679 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:02:03,679 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:02:03,679 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:02:03,680 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:02:03,680 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:02:03,680 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:02:03,680 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:02:03,680 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:02:03,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:03,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:02:03,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:03,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:03,705 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:02:03,705 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:02:03,706 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:02:03,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:03,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:02:03,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:03,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:03,709 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:02:03,709 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:02:03,716 INFO L745 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18true [2024-11-17 08:02:03,716 INFO L747 eck$LassoCheckResult]: Loop: 7#L18true assume true; 4#L18-1true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 13#L19true assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6#L25true main_~y~0#1 := main_~y~0#1 - 1; 7#L18true [2024-11-17 08:02:03,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1664, now seen corresponding path program 1 times [2024-11-17 08:02:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267754194] [2024-11-17 08:02:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:03,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:03,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1507285, now seen corresponding path program 1 times [2024-11-17 08:02:03,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:03,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423299758] [2024-11-17 08:02:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:03,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1537322708, now seen corresponding path program 1 times [2024-11-17 08:02:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:03,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443583730] [2024-11-17 08:02:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:03,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:04,001 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:04,002 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:04,002 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:04,002 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:04,002 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:04,003 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,003 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:04,003 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:04,003 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-17 08:02:04,004 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:04,004 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:04,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,049 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,123 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:04,124 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:04,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,128 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) [2024-11-17 08:02:04,133 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 [2024-11-17 08:02:04,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:04,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,158 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:04,158 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:04,169 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 [2024-11-17 08:02:04,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,175 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) [2024-11-17 08:02:04,176 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 [2024-11-17 08:02:04,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:04,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,196 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:04,196 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:04,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:04,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,210 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) [2024-11-17 08:02:04,211 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 [2024-11-17 08:02:04,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:04,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,231 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:04,231 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:04,242 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 [2024-11-17 08:02:04,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,244 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) [2024-11-17 08:02:04,245 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 [2024-11-17 08:02:04,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:04,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,258 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:04,258 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:04,271 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 [2024-11-17 08:02:04,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,273 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) [2024-11-17 08:02:04,274 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 [2024-11-17 08:02:04,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:04,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,299 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 [2024-11-17 08:02:04,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,302 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) [2024-11-17 08:02:04,309 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 [2024-11-17 08:02:04,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:04,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:04,341 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:04,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-17 08:02:04,350 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:04,350 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:04,350 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:04,350 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:04,350 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:04,350 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,350 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:04,351 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:04,351 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-17 08:02:04,351 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:04,351 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:04,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,418 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:04,422 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:04,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,425 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) [2024-11-17 08:02:04,426 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 [2024-11-17 08:02:04,427 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 [2024-11-17 08:02:04,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:04,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:04,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:04,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:04,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:02:04,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:02:04,455 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:04,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-17 08:02:04,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,475 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) [2024-11-17 08:02:04,477 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 [2024-11-17 08:02:04,478 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 [2024-11-17 08:02:04,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:04,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:04,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:04,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:04,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:02:04,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:02:04,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:04,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-17 08:02:04,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,510 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) [2024-11-17 08:02:04,511 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 [2024-11-17 08:02:04,513 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 [2024-11-17 08:02:04,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:04,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:04,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:04,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:04,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:04,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:04,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:04,525 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:04,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,538 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) [2024-11-17 08:02:04,542 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 [2024-11-17 08:02:04,543 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 [2024-11-17 08:02:04,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:04,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:04,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:04,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:04,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:04,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:04,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:04,557 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:04,568 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 [2024-11-17 08:02:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,572 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) [2024-11-17 08:02:04,573 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 [2024-11-17 08:02:04,573 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 [2024-11-17 08:02:04,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:04,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:04,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:04,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:04,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:04,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:04,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:04,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:04,595 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:04,595 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:02:04,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:04,598 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) [2024-11-17 08:02:04,602 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 [2024-11-17 08:02:04,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:04,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:04,603 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:04,603 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2024-11-17 08:02:04,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:04,622 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:04,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:04,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:04,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:04,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:04,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:04,755 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:02:04,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:04,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 62 transitions. Complement of second has 8 states. [2024-11-17 08:02:04,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-11-17 08:02:04,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-17 08:02:04,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:04,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-17 08:02:04,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:04,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-17 08:02:04,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:04,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2024-11-17 08:02:04,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:02:04,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 24 states and 33 transitions. [2024-11-17 08:02:04,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-17 08:02:04,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-17 08:02:04,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2024-11-17 08:02:04,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:04,815 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2024-11-17 08:02:04,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2024-11-17 08:02:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-17 08:02:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2024-11-17 08:02:04,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2024-11-17 08:02:04,834 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2024-11-17 08:02:04,834 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:02:04,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2024-11-17 08:02:04,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:02:04,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:04,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:04,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:04,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:02:04,836 INFO L745 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 109#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 110#L18 assume true; 105#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 106#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 120#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 111#L20-2 assume !main_#t~short3#1; 112#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 119#L20 [2024-11-17 08:02:04,836 INFO L747 eck$LassoCheckResult]: Loop: 119#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 124#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 123#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 119#L20 [2024-11-17 08:02:04,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash -101649221, now seen corresponding path program 1 times [2024-11-17 08:02:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:04,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504712454] [2024-11-17 08:02:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:04,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:04,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:02:04,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504712454] [2024-11-17 08:02:04,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504712454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:02:04,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:02:04,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:02:04,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393253962] [2024-11-17 08:02:04,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:02:04,876 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:02:04,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 40649, now seen corresponding path program 1 times [2024-11-17 08:02:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561417783] [2024-11-17 08:02:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:04,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:04,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:04,922 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:04,923 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:04,923 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:04,923 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:04,923 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:04,923 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:04,923 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:04,923 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:04,923 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-17 08:02:04,923 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:04,923 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:04,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:04,976 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 [2024-11-17 08:02:05,015 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:05,015 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:05,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,017 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) [2024-11-17 08:02:05,022 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 [2024-11-17 08:02:05,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:05,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:05,044 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:05,045 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:05,055 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 [2024-11-17 08:02:05,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,059 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) [2024-11-17 08:02:05,064 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 [2024-11-17 08:02:05,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:05,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:05,083 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:05,083 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:05,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:05,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,099 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) [2024-11-17 08:02:05,101 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 [2024-11-17 08:02:05,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:05,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:05,124 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 [2024-11-17 08:02:05,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,126 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) [2024-11-17 08:02:05,130 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 [2024-11-17 08:02:05,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:05,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:05,247 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:05,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:05,252 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:05,252 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:05,252 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:05,252 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:05,252 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:05,252 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,252 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:05,252 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:05,252 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-17 08:02:05,253 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:05,253 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:05,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:05,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:05,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:05,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:05,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:05,294 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:05,294 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:05,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,296 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) [2024-11-17 08:02:05,297 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 [2024-11-17 08:02:05,297 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 [2024-11-17 08:02:05,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:05,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:05,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:05,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:05,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:02:05,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:02:05,314 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:05,328 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 [2024-11-17 08:02:05,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,333 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) [2024-11-17 08:02:05,334 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 [2024-11-17 08:02:05,335 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 [2024-11-17 08:02:05,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:05,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:05,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:05,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:05,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:05,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:05,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:05,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:05,355 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:05,355 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:02:05,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:05,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,357 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) [2024-11-17 08:02:05,368 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 [2024-11-17 08:02:05,369 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:05,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:05,370 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:05,370 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-11-17 08:02:05,383 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 [2024-11-17 08:02:05,384 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:05,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:05,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:05,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:05,414 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:02:05,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:05,469 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 [2024-11-17 08:02:05,469 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:05,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 67 transitions. Complement of second has 10 states. [2024-11-17 08:02:05,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2024-11-17 08:02:05,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-17 08:02:05,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:05,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-17 08:02:05,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:05,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-17 08:02:05,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:05,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 67 transitions. [2024-11-17 08:02:05,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-17 08:02:05,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 36 states and 49 transitions. [2024-11-17 08:02:05,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-11-17 08:02:05,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-11-17 08:02:05,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 49 transitions. [2024-11-17 08:02:05,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:05,512 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-17 08:02:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 49 transitions. [2024-11-17 08:02:05,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2024-11-17 08:02:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2024-11-17 08:02:05,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 43 transitions. [2024-11-17 08:02:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:02:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:02:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:02:05,518 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:02:05,528 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2024-11-17 08:02:05,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2024-11-17 08:02:05,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:02:05,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 33 states and 43 transitions. [2024-11-17 08:02:05,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-17 08:02:05,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-17 08:02:05,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 43 transitions. [2024-11-17 08:02:05,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:05,531 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-11-17 08:02:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 43 transitions. [2024-11-17 08:02:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2024-11-17 08:02:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2024-11-17 08:02:05,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-11-17 08:02:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:02:05,534 INFO L425 stractBuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-11-17 08:02:05,534 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:02:05,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 40 transitions. [2024-11-17 08:02:05,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-17 08:02:05,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:05,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:05,536 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:05,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:05,536 INFO L745 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 304#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 307#L18 assume true; 302#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 305#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 320#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 326#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 316#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 317#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 308#L20-2 assume !main_#t~short3#1; 309#L20-1 [2024-11-17 08:02:05,536 INFO L747 eck$LassoCheckResult]: Loop: 309#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 314#L23 main_~x~0#1 := main_~x~0#1 - 1; 312#L25 main_~y~0#1 := main_~y~0#1 - 1; 298#L18 assume true; 299#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 325#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 322#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 323#L20-2 assume !main_#t~short3#1; 309#L20-1 [2024-11-17 08:02:05,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1099316987, now seen corresponding path program 1 times [2024-11-17 08:02:05,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742766493] [2024-11-17 08:02:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:05,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:05,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:05,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash -581496183, now seen corresponding path program 1 times [2024-11-17 08:02:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:05,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96631075] [2024-11-17 08:02:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:05,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:05,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:05,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:05,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1768704125, now seen corresponding path program 1 times [2024-11-17 08:02:05,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:05,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471886286] [2024-11-17 08:02:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:05,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:02:05,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471886286] [2024-11-17 08:02:05,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471886286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:02:05,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787912395] [2024-11-17 08:02:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:05,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:02:05,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:05,721 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:02:05,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-17 08:02:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:05,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:02:05,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:05,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:02:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:05,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787912395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:02:05,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:02:05,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-17 08:02:05,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379382379] [2024-11-17 08:02:05,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:02:06,073 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:06,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:06,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:06,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:06,074 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:06,074 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,074 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:06,074 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:06,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-17 08:02:06,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:06,074 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:06,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,174 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:06,174 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:06,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:06,179 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) [2024-11-17 08:02:06,181 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 [2024-11-17 08:02:06,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:06,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:06,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:06,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:06,205 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) [2024-11-17 08:02:06,206 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 [2024-11-17 08:02:06,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:06,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:06,260 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:06,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:06,265 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:06,265 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:06,266 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:06,266 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:06,266 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:06,266 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,266 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:06,266 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:06,266 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-17 08:02:06,266 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:06,266 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:06,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:06,327 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:06,327 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:06,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:06,329 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) [2024-11-17 08:02:06,330 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 [2024-11-17 08:02:06,330 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 [2024-11-17 08:02:06,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:06,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:06,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:06,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:06,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:06,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:06,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:06,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:06,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:06,346 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:02:06,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:06,347 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) [2024-11-17 08:02:06,348 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 [2024-11-17 08:02:06,349 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:06,349 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:06,349 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:06,349 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:02:06,359 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 [2024-11-17 08:02:06,360 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:06,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:06,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:06,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:06,414 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 [2024-11-17 08:02:06,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:06,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:06,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:06,478 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 [2024-11-17 08:02:06,479 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 40 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:06,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 40 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 107 states and 143 transitions. Complement of second has 6 states. [2024-11-17 08:02:06,512 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 [2024-11-17 08:02:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2024-11-17 08:02:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-17 08:02:06,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-17 08:02:06,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 16 letters. [2024-11-17 08:02:06,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:06,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 143 transitions. [2024-11-17 08:02:06,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2024-11-17 08:02:06,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 78 states and 103 transitions. [2024-11-17 08:02:06,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-17 08:02:06,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-11-17 08:02:06,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 103 transitions. [2024-11-17 08:02:06,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:06,523 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 103 transitions. [2024-11-17 08:02:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 103 transitions. [2024-11-17 08:02:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2024-11-17 08:02:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 65 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-11-17 08:02:06,531 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-11-17 08:02:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:02:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 08:02:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-17 08:02:06,532 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:02:06,851 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2024-11-17 08:02:06,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 162 transitions. [2024-11-17 08:02:06,852 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 43 [2024-11-17 08:02:06,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 110 states and 135 transitions. [2024-11-17 08:02:06,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2024-11-17 08:02:06,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2024-11-17 08:02:06,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 135 transitions. [2024-11-17 08:02:06,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:06,853 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 135 transitions. [2024-11-17 08:02:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 135 transitions. [2024-11-17 08:02:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 88. [2024-11-17 08:02:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.2727272727272727) internal successors, (112), 87 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 112 transitions. [2024-11-17 08:02:06,865 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 112 transitions. [2024-11-17 08:02:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-17 08:02:06,865 INFO L425 stractBuchiCegarLoop]: Abstraction has 88 states and 112 transitions. [2024-11-17 08:02:06,865 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:02:06,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 112 transitions. [2024-11-17 08:02:06,866 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 37 [2024-11-17 08:02:06,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:06,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:06,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:06,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:06,867 INFO L745 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 870#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 860#L18 assume true; 861#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 884#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 885#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 947#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 946#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 945#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 936#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 944#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 878#L23 [2024-11-17 08:02:06,867 INFO L747 eck$LassoCheckResult]: Loop: 878#L23 main_~x~0#1 := main_~x~0#1 - 1; 879#L25 main_~y~0#1 := main_~y~0#1 - 1; 922#L18 assume true; 921#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 920#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 918#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 916#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 912#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 878#L23 [2024-11-17 08:02:06,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash -280911796, now seen corresponding path program 1 times [2024-11-17 08:02:06,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:06,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169277924] [2024-11-17 08:02:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash -202661286, now seen corresponding path program 1 times [2024-11-17 08:02:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330196944] [2024-11-17 08:02:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:06,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1201260453, now seen corresponding path program 1 times [2024-11-17 08:02:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:06,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643959318] [2024-11-17 08:02:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:06,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:06,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:06,995 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:06,995 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:06,996 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:06,996 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:06,996 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:06,996 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:06,996 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:06,996 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:06,996 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-17 08:02:06,996 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:06,996 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:06,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,081 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:07,081 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:07,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,083 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) [2024-11-17 08:02:07,084 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 [2024-11-17 08:02:07,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:07,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-17 08:02:07,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,114 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) [2024-11-17 08:02:07,115 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 [2024-11-17 08:02:07,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:07,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,206 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:07,211 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 [2024-11-17 08:02:07,211 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:07,212 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:07,212 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:07,212 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:07,212 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:07,212 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,212 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:07,212 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:07,212 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-17 08:02:07,212 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:07,212 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:07,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,284 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:07,284 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:07,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,290 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-17 08:02:07,295 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 [2024-11-17 08:02:07,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:07,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:07,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:07,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:07,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:07,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:07,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:07,310 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:07,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:07,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,325 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-17 08:02:07,327 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 [2024-11-17 08:02:07,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:07,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:07,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:07,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:07,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:07,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:07,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:07,345 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:07,351 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:02:07,351 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:02:07,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,353 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-17 08:02:07,356 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:07,356 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:07,356 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:07,356 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-17 08:02:07,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-17 08:02:07,382 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:07,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:07,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:07,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:07,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:07,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:07,479 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 [2024-11-17 08:02:07,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 112 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:07,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 112 transitions. cyclomatic complexity: 32. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 204 states and 266 transitions. Complement of second has 7 states. [2024-11-17 08:02:07,510 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 [2024-11-17 08:02:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-11-17 08:02:07,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-17 08:02:07,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:07,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 8 letters. [2024-11-17 08:02:07,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:07,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 16 letters. [2024-11-17 08:02:07,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:07,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 266 transitions. [2024-11-17 08:02:07,518 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 37 [2024-11-17 08:02:07,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 165 states and 211 transitions. [2024-11-17 08:02:07,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2024-11-17 08:02:07,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2024-11-17 08:02:07,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 211 transitions. [2024-11-17 08:02:07,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:07,519 INFO L218 hiAutomatonCegarLoop]: Abstraction has 165 states and 211 transitions. [2024-11-17 08:02:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 211 transitions. [2024-11-17 08:02:07,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2024-11-17 08:02:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3026315789473684) internal successors, (198), 151 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2024-11-17 08:02:07,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 198 transitions. [2024-11-17 08:02:07,525 INFO L425 stractBuchiCegarLoop]: Abstraction has 152 states and 198 transitions. [2024-11-17 08:02:07,525 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:02:07,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 198 transitions. [2024-11-17 08:02:07,526 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 37 [2024-11-17 08:02:07,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:07,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:07,526 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:07,526 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:02:07,527 INFO L745 eck$LassoCheckResult]: Stem: 1239#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1240#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1241#L18 assume true; 1283#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1282#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1281#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1280#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1279#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1277#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1275#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1276#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1274#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1272#L20-2 assume !main_#t~short3#1; 1270#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1269#L23 main_~x~0#1 := main_~x~0#1 - 1; 1268#L25 main_~y~0#1 := main_~y~0#1 - 1; 1267#L18 assume true; 1266#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1262#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1253#L20 [2024-11-17 08:02:07,527 INFO L747 eck$LassoCheckResult]: Loop: 1253#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1242#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1243#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1253#L20 [2024-11-17 08:02:07,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1566717738, now seen corresponding path program 2 times [2024-11-17 08:02:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760553704] [2024-11-17 08:02:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:07,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash 40649, now seen corresponding path program 2 times [2024-11-17 08:02:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:07,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180664991] [2024-11-17 08:02:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:07,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash -678516268, now seen corresponding path program 3 times [2024-11-17 08:02:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:07,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127751985] [2024-11-17 08:02:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:07,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:07,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:07,620 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:07,620 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:07,620 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:07,620 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:07,620 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:07,620 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,620 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:07,620 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:07,620 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-17 08:02:07,620 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:07,620 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:07,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,682 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:07,683 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:07,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,685 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-17 08:02:07,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:07,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,707 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:07,707 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:07,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,722 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-17 08:02:07,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:07,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,736 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:07,736 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:07,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:07,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,749 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-17 08:02:07,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:07,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:07,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,777 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-17 08:02:07,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:07,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:07,868 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:07,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-17 08:02:07,873 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:07,873 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:07,873 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:07,874 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:07,874 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:07,874 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,874 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:07,874 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:07,874 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-17 08:02:07,874 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:07,874 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:07,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:07,932 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:07,932 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:07,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,934 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-17 08:02:07,936 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 [2024-11-17 08:02:07,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:07,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:07,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:07,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:07,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:02:07,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:02:07,954 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:07,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-17 08:02:07,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:07,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:07,972 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:07,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-17 08:02:07,974 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 [2024-11-17 08:02:07,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:07,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:07,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:07,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:07,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:07,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:07,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:07,988 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:08,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,007 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:02:08,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-17 08:02:08,012 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 [2024-11-17 08:02:08,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:08,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:08,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:08,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:08,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:08,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:08,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:08,025 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:08,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,043 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2024-11-17 08:02:08,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-17 08:02:08,044 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 [2024-11-17 08:02:08,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:08,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:08,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:08,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:08,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:08,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:08,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:08,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:08,063 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:08,063 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:02:08,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,065 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2024-11-17 08:02:08,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-17 08:02:08,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:08,070 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:08,070 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:08,070 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-11-17 08:02:08,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-17 08:02:08,083 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:08,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,148 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:08,210 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 [2024-11-17 08:02:08,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,253 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 227 transitions. Complement of second has 9 states. [2024-11-17 08:02:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-11-17 08:02:08,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 19 letters. Loop has 3 letters. [2024-11-17 08:02:08,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:08,262 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:02:08,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,304 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:08,364 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 [2024-11-17 08:02:08,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-17 08:02:08,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 227 transitions. Complement of second has 9 states. [2024-11-17 08:02:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-11-17 08:02:08,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 19 letters. Loop has 3 letters. [2024-11-17 08:02:08,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:08,418 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:02:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,476 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:02:08,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:08,519 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 [2024-11-17 08:02:08,519 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,554 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 198 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 255 states and 312 transitions. Complement of second has 8 states. [2024-11-17 08:02:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2024-11-17 08:02:08,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 19 letters. Loop has 3 letters. [2024-11-17 08:02:08,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:08,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 22 letters. Loop has 3 letters. [2024-11-17 08:02:08,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:08,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 19 letters. Loop has 6 letters. [2024-11-17 08:02:08,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:08,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 312 transitions. [2024-11-17 08:02:08,558 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 44 [2024-11-17 08:02:08,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 171 states and 211 transitions. [2024-11-17 08:02:08,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2024-11-17 08:02:08,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2024-11-17 08:02:08,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 211 transitions. [2024-11-17 08:02:08,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:08,561 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 211 transitions. [2024-11-17 08:02:08,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 211 transitions. [2024-11-17 08:02:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 110. [2024-11-17 08:02:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.2636363636363637) internal successors, (139), 109 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 139 transitions. [2024-11-17 08:02:08,565 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 139 transitions. [2024-11-17 08:02:08,566 INFO L425 stractBuchiCegarLoop]: Abstraction has 110 states and 139 transitions. [2024-11-17 08:02:08,566 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:02:08,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 139 transitions. [2024-11-17 08:02:08,566 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 37 [2024-11-17 08:02:08,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:08,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:08,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:08,567 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:08,567 INFO L745 eck$LassoCheckResult]: Stem: 2255#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2256#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2257#L18 assume true; 2288#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2287#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2284#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2286#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2285#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2282#L23 main_~x~0#1 := main_~x~0#1 - 1; 2279#L25 main_~y~0#1 := main_~y~0#1 - 1; 2276#L18 assume true; 2277#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2269#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2270#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2273#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2331#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2326#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2258#L20-2 [2024-11-17 08:02:08,567 INFO L747 eck$LassoCheckResult]: Loop: 2258#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2259#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2275#L23 main_~x~0#1 := main_~x~0#1 - 1; 2262#L25 main_~y~0#1 := main_~y~0#1 - 1; 2263#L18 assume true; 2252#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2253#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2352#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2258#L20-2 [2024-11-17 08:02:08,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1118908234, now seen corresponding path program 2 times [2024-11-17 08:02:08,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797388671] [2024-11-17 08:02:08,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 08:02:08,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:02:08,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797388671] [2024-11-17 08:02:08,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797388671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:02:08,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:02:08,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:02:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296193484] [2024-11-17 08:02:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:02:08,595 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:02:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2140862362, now seen corresponding path program 2 times [2024-11-17 08:02:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390631556] [2024-11-17 08:02:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:08,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:08,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:08,663 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:08,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:08,664 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:08,664 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:08,664 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:08,664 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,664 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:08,664 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:08,664 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-17 08:02:08,664 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:08,664 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:08,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,778 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:08,778 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:08,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,779 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2024-11-17 08:02:08,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-17 08:02:08,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:08,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:08,794 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:08,794 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:08,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,805 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2024-11-17 08:02:08,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-17 08:02:08,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:08,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:08,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:08,830 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2024-11-17 08:02:08,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-17 08:02:08,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:08,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:08,963 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:08,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:08,968 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:08,968 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:08,968 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:08,968 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:08,968 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:08,968 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:08,968 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:08,968 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:08,968 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-17 08:02:08,968 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:08,968 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:08,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:08,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,082 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:09,083 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:09,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,084 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2024-11-17 08:02:09,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-17 08:02:09,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:02:09,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:09,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:09,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:09,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:09,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:09,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:09,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:09,097 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:09,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,112 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2024-11-17 08:02:09,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-17 08:02:09,113 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 [2024-11-17 08:02:09,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:09,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:09,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:09,124 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:02:09,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:09,127 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-17 08:02:09,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:09,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:09,133 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:09,133 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:02:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,138 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2024-11-17 08:02:09,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-17 08:02:09,143 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:09,143 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:09,143 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:09,143 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-17 08:02:09,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:09,154 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:09,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:09,239 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 [2024-11-17 08:02:09,240 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 127 states and 158 transitions. Complement of second has 7 states. [2024-11-17 08:02:09,262 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 [2024-11-17 08:02:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-17 08:02:09,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 8 letters. [2024-11-17 08:02:09,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:09,262 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:02:09,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:09,364 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 [2024-11-17 08:02:09,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,396 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 128 states and 158 transitions. Complement of second has 9 states. [2024-11-17 08:02:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:02:09,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-11-17 08:02:09,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 8 letters. [2024-11-17 08:02:09,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:09,397 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:02:09,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:09,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:09,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:02:09,478 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 [2024-11-17 08:02:09,478 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 139 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 228 states and 299 transitions. Complement of second has 8 states. [2024-11-17 08:02:09,502 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 [2024-11-17 08:02:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2024-11-17 08:02:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 8 letters. [2024-11-17 08:02:09,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 25 letters. Loop has 8 letters. [2024-11-17 08:02:09,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 16 letters. [2024-11-17 08:02:09,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:09,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 299 transitions. [2024-11-17 08:02:09,505 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2024-11-17 08:02:09,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 91 states and 109 transitions. [2024-11-17 08:02:09,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-17 08:02:09,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-17 08:02:09,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 109 transitions. [2024-11-17 08:02:09,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:09,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 109 transitions. [2024-11-17 08:02:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 109 transitions. [2024-11-17 08:02:09,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 31. [2024-11-17 08:02:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-17 08:02:09,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-17 08:02:09,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:02:09,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:02:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:02:09,508 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:02:09,517 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-17 08:02:09,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 34 transitions. [2024-11-17 08:02:09,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-17 08:02:09,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 24 transitions. [2024-11-17 08:02:09,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-17 08:02:09,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-17 08:02:09,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2024-11-17 08:02:09,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:02:09,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-17 08:02:09,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2024-11-17 08:02:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-17 08:02:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-11-17 08:02:09,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-17 08:02:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:02:09,520 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-17 08:02:09,520 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-17 08:02:09,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2024-11-17 08:02:09,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-17 08:02:09,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:02:09,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:02:09,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:09,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:02:09,521 INFO L745 eck$LassoCheckResult]: Stem: 3180#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3181#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 3174#L18 assume true; 3175#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3178#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3189#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3184#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3185#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3188#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3182#L20-2 [2024-11-17 08:02:09,521 INFO L747 eck$LassoCheckResult]: Loop: 3182#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3183#L20-1 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3187#L23 main_~x~0#1 := main_~x~0#1 - 1; 3186#L25 main_~y~0#1 := main_~y~0#1 - 1; 3176#L18 assume true; 3177#L18-1 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3179#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3190#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3184#L20-2 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3185#L20-1 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3188#L20 assume true;main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3182#L20-2 [2024-11-17 08:02:09,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1143840495, now seen corresponding path program 1 times [2024-11-17 08:02:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:09,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98288016] [2024-11-17 08:02:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:09,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1833710350, now seen corresponding path program 1 times [2024-11-17 08:02:09,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:09,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943764493] [2024-11-17 08:02:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:09,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:09,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:09,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1415631548, now seen corresponding path program 3 times [2024-11-17 08:02:09,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:02:09,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169912507] [2024-11-17 08:02:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:02:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:02:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:02:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:02:09,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:02:09,648 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:09,648 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:09,648 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:09,648 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:09,648 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:02:09,648 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:09,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:09,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-17 08:02:09,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:09,649 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:09,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,777 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:09,777 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:02:09,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,778 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2024-11-17 08:02:09,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-17 08:02:09,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:09,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:09,798 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:02:09,798 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:02:09,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-17 08:02:09,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,811 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2024-11-17 08:02:09,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-17 08:02:09,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:02:09,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:09,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:09,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:09,836 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2024-11-17 08:02:09,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-17 08:02:09,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:02:09,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:02:09,893 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:02:09,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:09,898 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:02:09,898 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:02:09,898 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:02:09,898 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:02:09,898 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:02:09,898 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:09,898 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:02:09,898 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:02:09,898 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-17 08:02:09,898 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:02:09,898 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:02:09,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:02:09,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:10,052 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:02:10,053 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:02:10,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:10,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:10,054 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2024-11-17 08:02:10,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-17 08:02:10,056 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 [2024-11-17 08:02:10,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:10,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:10,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:10,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:10,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:10,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:10,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:10,068 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:10,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-17 08:02:10,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:10,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:10,080 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2024-11-17 08:02:10,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-17 08:02:10,082 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 [2024-11-17 08:02:10,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:10,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:10,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:10,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:10,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:02:10,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:02:10,097 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:02:10,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-17 08:02:10,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:10,112 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2024-11-17 08:02:10,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-17 08:02:10,113 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 [2024-11-17 08:02:10,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:02:10,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:02:10,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:02:10,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:02:10,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:02:10,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:02:10,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:02:10,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:02:10,130 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:02:10,130 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:02:10,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:02:10,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:02:10,132 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2024-11-17 08:02:10,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-17 08:02:10,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:02:10,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:02:10,133 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:02:10,133 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:02:10,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-17 08:02:10,144 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:02:10,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:02:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:10,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:02:10,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:02:10,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:02:10,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:02:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 08:02:10,201 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 [2024-11-17 08:02:10,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:10,211 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 59 transitions. Complement of second has 6 states. [2024-11-17 08:02:10,212 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 [2024-11-17 08:02:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:02:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-17 08:02:10,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 11 letters. [2024-11-17 08:02:10,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:10,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 11 letters. [2024-11-17 08:02:10,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:10,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 22 letters. [2024-11-17 08:02:10,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:02:10,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2024-11-17 08:02:10,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:02:10,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 0 states and 0 transitions. [2024-11-17 08:02:10,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:02:10,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:02:10,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:02:10,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:02:10,214 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:02:10,214 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:02:10,214 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:02:10,214 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-17 08:02:10,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:02:10,214 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:02:10,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:02:10,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:02:10 BoogieIcfgContainer [2024-11-17 08:02:10,224 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:02:10,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:02:10,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:02:10,225 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:02:10,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:02:03" (3/4) ... [2024-11-17 08:02:10,230 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:02:10,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:02:10,232 INFO L158 Benchmark]: Toolchain (without parser) took 7064.60ms. Allocated memory was 174.1MB in the beginning and 264.2MB in the end (delta: 90.2MB). Free memory was 100.7MB in the beginning and 207.1MB in the end (delta: -106.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:02:10,232 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:02:10,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.66ms. Allocated memory is still 174.1MB. Free memory was 100.5MB in the beginning and 89.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:02:10,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.79ms. Allocated memory is still 174.1MB. Free memory was 89.4MB in the beginning and 87.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:02:10,232 INFO L158 Benchmark]: Boogie Preprocessor took 20.08ms. Allocated memory is still 174.1MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:02:10,232 INFO L158 Benchmark]: IcfgBuilder took 218.57ms. Allocated memory was 174.1MB in the beginning and 220.2MB in the end (delta: 46.1MB). Free memory was 86.6MB in the beginning and 187.1MB in the end (delta: -100.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-17 08:02:10,233 INFO L158 Benchmark]: BuchiAutomizer took 6595.47ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 187.1MB in the beginning and 208.2MB in the end (delta: -21.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-17 08:02:10,233 INFO L158 Benchmark]: Witness Printer took 7.01ms. Allocated memory is still 264.2MB. Free memory was 208.2MB in the beginning and 207.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:02:10,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.66ms. Allocated memory is still 174.1MB. Free memory was 100.5MB in the beginning and 89.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.79ms. Allocated memory is still 174.1MB. Free memory was 89.4MB in the beginning and 87.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.08ms. Allocated memory is still 174.1MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 218.57ms. Allocated memory was 174.1MB in the beginning and 220.2MB in the end (delta: 46.1MB). Free memory was 86.6MB in the beginning and 187.1MB in the end (delta: -100.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 6595.47ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 187.1MB in the beginning and 208.2MB in the end (delta: -21.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 7.01ms. Allocated memory is still 264.2MB. Free memory was 208.2MB in the beginning and 207.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 10 terminating modules (3 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 5 locations. One deterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 4.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 179 StatesRemovedByMinimization, 8 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 [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 375 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 185 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax172 hnf100 lsp50 ukn91 mio100 lsp100 div100 bol106 ite100 ukn100 eq146 hnf95 smp100 dnf149 smp86 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:02:10,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-17 08:02:10,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-17 08:02:10,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE