./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:52:52,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:52:53,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:52:53,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:52:53,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:52:53,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:52:53,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:52:53,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:52:53,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:52:53,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:52:53,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:52:53,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:52:53,077 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:52:53,078 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:52:53,078 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:52:53,078 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:52:53,079 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:52:53,079 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:52:53,079 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:52:53,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:52:53,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:52:53,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:52:53,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:52:53,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:52:53,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:52:53,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:52:53,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:52:53,085 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:52:53,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:52:53,086 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:52:53,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:52:53,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:52:53,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:52:53,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:52:53,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:52:53,094 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:52:53,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2024-11-12 20:52:53,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:52:53,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:52:53,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:52:53,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:52:53,370 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:52:53,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-12 20:52:54,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:52:55,106 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:52:55,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-12 20:52:55,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e189a707/df5500ea1a6440ec9d2972e65dd7bfc8/FLAGcbf0a3ef4 [2024-11-12 20:52:55,511 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e189a707/df5500ea1a6440ec9d2972e65dd7bfc8 [2024-11-12 20:52:55,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:52:55,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:52:55,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:52:55,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:52:55,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:52:55,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67257fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55, skipping insertion in model container [2024-11-12 20:52:55,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:52:55,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:52:55,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:52:55,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:52:55,756 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:52:55,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55 WrapperNode [2024-11-12 20:52:55,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:52:55,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:52:55,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:52:55,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:52:55,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,782 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-11-12 20:52:55,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:52:55,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:52:55,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:52:55,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:52:55,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,800 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:52:55,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:52:55,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:52:55,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:52:55,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:52:55,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (1/1) ... [2024-11-12 20:52:55,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:55,841 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) [2024-11-12 20:52:55,844 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 [2024-11-12 20:52:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:52:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:52:55,968 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:52:55,972 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:52:56,061 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-12 20:52:56,062 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:52:56,103 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:52:56,106 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 20:52:56,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:52:56 BoogieIcfgContainer [2024-11-12 20:52:56,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:52:56,110 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:52:56,110 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:52:56,114 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:52:56,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:52:56,115 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:52:55" (1/3) ... [2024-11-12 20:52:56,116 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@309426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:52:56, skipping insertion in model container [2024-11-12 20:52:56,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:52:56,117 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:52:55" (2/3) ... [2024-11-12 20:52:56,118 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@309426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:52:56, skipping insertion in model container [2024-11-12 20:52:56,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:52:56,118 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:52:56" (3/3) ... [2024-11-12 20:52:56,120 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-12 20:52:56,232 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:52:56,232 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:52:56,232 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:52:56,233 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:52:56,233 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:52:56,233 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:52:56,233 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:52:56,234 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:52:56,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:52:56,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-12 20:52:56,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:52:56,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:52:56,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:52:56,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:52:56,260 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:52:56,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:52:56,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-12 20:52:56,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:52:56,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:52:56,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:52:56,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:52:56,270 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } 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;" [2024-11-12 20:52:56,271 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-12 20:52:56,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:52:56,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414415251] [2024-11-12 20:52:56,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:56,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,364 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:56,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:56,391 INFO L85 PathProgramCache]: Analyzing trace with hash 41516, now seen corresponding path program 1 times [2024-11-12 20:52:56,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:56,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567383859] [2024-11-12 20:52:56,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:56,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,402 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:56,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:56,413 INFO L85 PathProgramCache]: Analyzing trace with hash 28700458, now seen corresponding path program 1 times [2024-11-12 20:52:56,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:56,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229249164] [2024-11-12 20:52:56,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:56,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,428 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:56,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:56,518 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:56,518 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:56,518 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:56,518 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:56,519 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:52:56,519 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,519 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:56,519 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:56,519 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-12 20:52:56,519 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:56,519 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:56,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,649 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:56,650 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:52:56,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,654 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) [2024-11-12 20:52:56,655 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 [2024-11-12 20:52:56,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:56,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,687 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:56,687 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: [] [2024-11-12 20:52:56,698 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 [2024-11-12 20:52:56,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,700 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) [2024-11-12 20:52:56,701 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 [2024-11-12 20:52:56,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:56,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,725 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:56,725 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: [] [2024-11-12 20:52:56,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-12 20:52:56,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,738 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) [2024-11-12 20:52:56,738 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 [2024-11-12 20:52:56,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:56,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,758 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:56,758 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: [] [2024-11-12 20:52:56,769 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 [2024-11-12 20:52:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,771 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) [2024-11-12 20:52:56,772 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 [2024-11-12 20:52:56,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:56,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,788 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:56,790 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: [] [2024-11-12 20:52:56,806 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 [2024-11-12 20:52:56,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,810 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) [2024-11-12 20:52:56,812 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 [2024-11-12 20:52:56,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:56,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,848 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) [2024-11-12 20:52:56,850 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 [2024-11-12 20:52:56,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:52:56,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:56,890 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:52:56,894 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 [2024-11-12 20:52:56,895 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:56,895 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:56,895 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:56,895 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:56,895 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:52:56,895 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,895 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:56,895 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:56,895 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-12 20:52:56,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:56,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:56,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:56,969 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:56,974 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:52:56,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:56,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:56,977 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) [2024-11-12 20:52:56,979 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 [2024-11-12 20:52:56,981 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 [2024-11-12 20:52:56,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:56,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:56,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:56,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:57,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:52:57,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:52:57,015 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:57,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,030 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) [2024-11-12 20:52:57,031 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 [2024-11-12 20:52:57,032 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 [2024-11-12 20:52:57,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:57,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:57,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:57,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:57,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:52:57,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:52:57,054 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:57,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:57,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,072 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) [2024-11-12 20:52:57,073 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 [2024-11-12 20:52:57,074 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 [2024-11-12 20:52:57,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:57,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:52:57,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:57,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:57,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:57,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:52:57,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:52:57,089 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:57,100 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 [2024-11-12 20:52:57,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,101 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) [2024-11-12 20:52:57,103 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 [2024-11-12 20:52:57,103 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 [2024-11-12 20:52:57,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:57,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:52:57,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:57,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:57,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:57,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:52:57,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:52:57,116 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:57,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-12 20:52:57,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,128 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) [2024-11-12 20:52:57,129 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 [2024-11-12 20:52:57,130 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 [2024-11-12 20:52:57,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:57,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:52:57,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:57,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:57,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:57,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:52:57,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:52:57,144 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:52:57,147 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:52:57,147 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:52:57,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,168 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) [2024-11-12 20:52:57,169 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 [2024-11-12 20:52:57,170 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:52:57,170 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:52:57,170 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:52:57,171 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 [] [2024-11-12 20:52:57,182 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 [2024-11-12 20:52:57,185 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:52:57,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:57,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:52:57,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:57,239 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:52:57,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:52:57,296 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 [2024-11-12 20:52:57,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:52:57,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 60 transitions. Complement of second has 6 states. [2024-11-12 20:52:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 20:52:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:52:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2024-11-12 20:52:57,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-12 20:52:57,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:57,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-12 20:52:57,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:57,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-12 20:52:57,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:57,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 60 transitions. [2024-11-12 20:52:57,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-12 20:52:57,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 21 states and 30 transitions. [2024-11-12 20:52:57,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-12 20:52:57,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-12 20:52:57,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2024-11-12 20:52:57,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:52:57,379 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-12 20:52:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2024-11-12 20:52:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-12 20:52:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2024-11-12 20:52:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2024-11-12 20:52:57,409 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-12 20:52:57,409 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-12 20:52:57,409 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 20:52:57,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2024-11-12 20:52:57,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-12 20:52:57,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:52:57,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:52:57,412 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:52:57,412 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:52:57,412 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } 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;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#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;" [2024-11-12 20:52:57,413 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" [2024-11-12 20:52:57,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663475, now seen corresponding path program 1 times [2024-11-12 20:52:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:57,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849349596] [2024-11-12 20:52:57,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:52:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849349596] [2024-11-12 20:52:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849349596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:52:57,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274310172] [2024-11-12 20:52:57,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:57,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:52:57,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,480 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:52:57,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 20:52:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:57,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:52:57,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:57,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:52:57,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274310172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:52:57,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:52:57,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 20:52:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26509153] [2024-11-12 20:52:57,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:52:57,534 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:52:57,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:57,534 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2024-11-12 20:52:57,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:57,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381297821] [2024-11-12 20:52:57,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:57,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:57,541 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:57,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:57,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:57,635 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:57,635 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:57,635 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:57,635 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:57,635 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:52:57,635 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,635 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:57,636 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:57,636 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-12 20:52:57,636 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:57,636 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:57,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,703 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:57,703 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:52:57,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,705 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) [2024-11-12 20:52:57,707 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 [2024-11-12 20:52:57,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:57,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:57,731 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:57,731 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: [] [2024-11-12 20:52:57,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-12 20:52:57,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,749 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) [2024-11-12 20:52:57,753 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 [2024-11-12 20:52:57,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:57,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:57,777 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:52:57,777 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: [] [2024-11-12 20:52:57,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:57,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,794 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) [2024-11-12 20:52:57,795 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 [2024-11-12 20:52:57,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:57,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:57,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-12 20:52:57,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:57,826 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) [2024-11-12 20:52:57,827 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 [2024-11-12 20:52:57,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:52:57,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:57,952 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:52:57,958 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 [2024-11-12 20:52:57,958 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:57,959 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:57,959 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:57,959 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:57,959 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:52:57,959 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:57,959 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:57,959 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:57,959 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-12 20:52:57,960 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:57,960 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:57,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:57,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:58,035 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:58,036 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:52:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:58,038 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) [2024-11-12 20:52:58,039 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 [2024-11-12 20:52:58,040 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 [2024-11-12 20:52:58,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:58,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:58,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:58,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:58,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:52:58,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:52:58,063 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:58,078 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 [2024-11-12 20:52:58,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:58,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:58,081 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) [2024-11-12 20:52:58,082 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 [2024-11-12 20:52:58,083 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 [2024-11-12 20:52:58,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:58,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:58,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:58,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:58,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:52:58,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:52:58,103 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:52:58,118 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 [2024-11-12 20:52:58,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:58,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:58,121 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:52:58,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-12 20:52:58,123 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 [2024-11-12 20:52:58,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:58,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:52:58,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:58,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:58,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:58,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:52:58,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:52:58,141 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:52:58,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:52:58,146 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:52:58,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:58,148 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) [2024-11-12 20:52:58,149 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 [2024-11-12 20:52:58,151 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:52:58,151 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:52:58,151 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:52:58,151 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 [] [2024-11-12 20:52:58,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-12 20:52:58,168 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:52:58,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:58,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:52:58,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:58,214 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:52:58,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:52:58,321 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 [2024-11-12 20:52:58,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 20:52:58,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 44 states and 63 transitions. Complement of second has 10 states. [2024-11-12 20:52:58,381 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 [2024-11-12 20:52:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 20:52:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2024-11-12 20:52:58,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-12 20:52:58,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:58,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-12 20:52:58,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:58,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-12 20:52:58,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:58,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2024-11-12 20:52:58,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-12 20:52:58,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2024-11-12 20:52:58,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-12 20:52:58,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-12 20:52:58,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2024-11-12 20:52:58,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:52:58,387 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2024-11-12 20:52:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2024-11-12 20:52:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2024-11-12 20:52:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 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) [2024-11-12 20:52:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2024-11-12 20:52:58,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2024-11-12 20:52:58,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:52:58,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:52:58,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:52:58,393 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:52:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:52:58,406 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2024-11-12 20:52:58,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2024-11-12 20:52:58,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:52:58,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2024-11-12 20:52:58,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-12 20:52:58,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-12 20:52:58,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2024-11-12 20:52:58,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:52:58,413 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-11-12 20:52:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2024-11-12 20:52:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-11-12 20:52:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 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) [2024-11-12 20:52:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-12 20:52:58,418 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-12 20:52:58,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:52:58,420 INFO L426 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-12 20:52:58,420 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 20:52:58,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2024-11-12 20:52:58,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:52:58,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:52:58,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:52:58,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:52:58,423 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:52:58,423 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" [2024-11-12 20:52:58,423 INFO L749 eck$LassoCheckResult]: Loop: "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" [2024-11-12 20:52:58,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 585785626, now seen corresponding path program 1 times [2024-11-12 20:52:58,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371620427] [2024-11-12 20:52:58,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:58,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:58,436 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:58,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1831936327, now seen corresponding path program 1 times [2024-11-12 20:52:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354876964] [2024-11-12 20:52:58,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:58,455 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:58,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:58,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:58,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2046492146, now seen corresponding path program 1 times [2024-11-12 20:52:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:58,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274795112] [2024-11-12 20:52:58,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:52:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274795112] [2024-11-12 20:52:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274795112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:52:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247746175] [2024-11-12 20:52:58,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:58,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:52:58,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:58,670 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:52:58,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-12 20:52:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:58,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 20:52:58,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:58,876 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:52:58,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247746175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:52:58,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:52:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-12 20:52:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334454630] [2024-11-12 20:52:58,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:52:59,048 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:59,048 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:59,048 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:59,048 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:59,048 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:52:59,049 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,049 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:59,049 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:59,049 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-12 20:52:59,049 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:59,049 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:59,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,138 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:59,138 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:52:59,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:59,141 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) [2024-11-12 20:52:59,142 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 [2024-11-12 20:52:59,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:52:59,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:59,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:59,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:59,169 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) [2024-11-12 20:52:59,170 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 [2024-11-12 20:52:59,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:52:59,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:52:59,230 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:52:59,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:59,235 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:52:59,235 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:52:59,235 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:52:59,235 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:52:59,235 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:52:59,235 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,235 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:52:59,235 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:52:59,235 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-12 20:52:59,235 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:52:59,235 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:52:59,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:52:59,330 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:52:59,330 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:52:59,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:59,332 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) [2024-11-12 20:52:59,332 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 [2024-11-12 20:52:59,334 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 [2024-11-12 20:52:59,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:52:59,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:52:59,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:52:59,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:52:59,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:52:59,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:52:59,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:52:59,351 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:52:59,353 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:52:59,353 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:52:59,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:52:59,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:52:59,355 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) [2024-11-12 20:52:59,357 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 [2024-11-12 20:52:59,357 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:52:59,357 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:52:59,358 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:52:59,358 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 [] [2024-11-12 20:52:59,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:59,369 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:52:59,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:59,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:52:59,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:59,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-12 20:52:59,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-12 20:52:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:52:59,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:52:59,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:52:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:52:59,487 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 [2024-11-12 20:52:59,487 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-12 20:52:59,506 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 92 states and 128 transitions. Complement of second has 6 states. [2024-11-12 20:52:59,506 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 [2024-11-12 20:52:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-12 20:52:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2024-11-12 20:52:59,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2024-11-12 20:52:59,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:59,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-12 20:52:59,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:59,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2024-11-12 20:52:59,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:52:59,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2024-11-12 20:52:59,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2024-11-12 20:52:59,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2024-11-12 20:52:59,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-12 20:52:59,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-12 20:52:59,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2024-11-12 20:52:59,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:52:59,520 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2024-11-12 20:52:59,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2024-11-12 20:52:59,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2024-11-12 20:52:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 57 states have internal predecessors, (80), 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) [2024-11-12 20:52:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-11-12 20:52:59,528 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-11-12 20:52:59,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:52:59,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 20:52:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-12 20:52:59,529 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2024-11-12 20:52:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:52:59,922 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2024-11-12 20:52:59,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2024-11-12 20:52:59,925 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2024-11-12 20:52:59,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2024-11-12 20:52:59,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-11-12 20:52:59,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-11-12 20:52:59,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2024-11-12 20:52:59,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:52:59,927 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2024-11-12 20:52:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2024-11-12 20:52:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2024-11-12 20:52:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 77 states have internal predecessors, (102), 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) [2024-11-12 20:52:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2024-11-12 20:52:59,931 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-11-12 20:52:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-12 20:52:59,932 INFO L426 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-11-12 20:52:59,932 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 20:52:59,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2024-11-12 20:52:59,933 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-12 20:52:59,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:52:59,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:52:59,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:52:59,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:52:59,934 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" [2024-11-12 20:52:59,934 INFO L749 eck$LassoCheckResult]: Loop: "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" [2024-11-12 20:52:59,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:59,934 INFO L85 PathProgramCache]: Analyzing trace with hash 979485188, now seen corresponding path program 1 times [2024-11-12 20:52:59,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:59,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461476345] [2024-11-12 20:52:59,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:59,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,941 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:59,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 1 times [2024-11-12 20:52:59,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:59,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077638578] [2024-11-12 20:52:59,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,951 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:59,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:59,955 INFO L85 PathProgramCache]: Analyzing trace with hash 303194510, now seen corresponding path program 1 times [2024-11-12 20:52:59,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:59,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844897800] [2024-11-12 20:52:59,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:59,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,966 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:59,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:00,033 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:00,033 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:00,033 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:00,033 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:00,033 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:00,033 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,033 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:00,033 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:00,033 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-12 20:53:00,034 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:00,034 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:00,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,098 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:00,098 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:00,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,102 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) [2024-11-12 20:53:00,103 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 [2024-11-12 20:53:00,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,116 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,116 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: [] [2024-11-12 20:53:00,127 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 [2024-11-12 20:53:00,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,128 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) [2024-11-12 20:53:00,129 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 [2024-11-12 20:53:00,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:00,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,154 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) [2024-11-12 20:53:00,155 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 [2024-11-12 20:53:00,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:00,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,234 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:00,238 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 [2024-11-12 20:53:00,239 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:00,239 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:00,239 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:00,239 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:00,239 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:00,239 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,239 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:00,239 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:00,239 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-12 20:53:00,239 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:00,239 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:00,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,309 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:00,309 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:00,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,310 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) [2024-11-12 20:53:00,311 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 [2024-11-12 20:53:00,312 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 [2024-11-12 20:53:00,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:00,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:00,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:00,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:00,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:00,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:00,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:00,323 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:00,333 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 [2024-11-12 20:53:00,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,335 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) [2024-11-12 20:53:00,336 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 [2024-11-12 20:53:00,337 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 [2024-11-12 20:53:00,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:00,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:00,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:00,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:00,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:00,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:00,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:00,350 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:00,359 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 [2024-11-12 20:53:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,361 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) [2024-11-12 20:53:00,361 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 [2024-11-12 20:53:00,362 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 [2024-11-12 20:53:00,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:00,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:00,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:00,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:00,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:00,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:00,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:00,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:00,377 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:53:00,377 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:53:00,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,380 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) [2024-11-12 20:53:00,381 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 [2024-11-12 20:53:00,381 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:00,381 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:00,381 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:00,381 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 [] [2024-11-12 20:53:00,391 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 [2024-11-12 20:53:00,392 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:00,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:00,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:00,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:00,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:00,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:00,474 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 [2024-11-12 20:53:00,474 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-12 20:53:00,495 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 242 transitions. Complement of second has 7 states. [2024-11-12 20:53:00,499 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 [2024-11-12 20:53:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-12 20:53:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-12 20:53:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2024-11-12 20:53:00,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2024-11-12 20:53:00,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2024-11-12 20:53:00,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:00,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2024-11-12 20:53:00,506 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-12 20:53:00,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2024-11-12 20:53:00,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-11-12 20:53:00,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2024-11-12 20:53:00,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2024-11-12 20:53:00,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:00,511 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-11-12 20:53:00,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2024-11-12 20:53:00,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2024-11-12 20:53:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.3407407407407408) internal successors, (181), 134 states have internal predecessors, (181), 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) [2024-11-12 20:53:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2024-11-12 20:53:00,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-11-12 20:53:00,525 INFO L426 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-11-12 20:53:00,526 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 20:53:00,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2024-11-12 20:53:00,527 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-12 20:53:00,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:53:00,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:53:00,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:53:00,527 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:53:00,527 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" [2024-11-12 20:53:00,528 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" [2024-11-12 20:53:00,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash 303194512, now seen corresponding path program 2 times [2024-11-12 20:53:00,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:00,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461029826] [2024-11-12 20:53:00,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,540 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:00,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:00,549 INFO L85 PathProgramCache]: Analyzing trace with hash 417872540, now seen corresponding path program 1 times [2024-11-12 20:53:00,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:00,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111775288] [2024-11-12 20:53:00,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:00,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,561 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:00,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 267728235, now seen corresponding path program 3 times [2024-11-12 20:53:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681258682] [2024-11-12 20:53:00,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:00,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:00,681 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:00,681 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:00,682 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:00,682 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:00,682 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:00,682 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,682 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:00,682 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:00,682 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-12 20:53:00,682 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:00,682 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:00,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:00,753 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:00,753 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:00,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,755 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) [2024-11-12 20:53:00,756 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 [2024-11-12 20:53:00,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,770 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,770 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: [] [2024-11-12 20:53:00,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:00,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,782 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) [2024-11-12 20:53:00,783 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 [2024-11-12 20:53:00,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,796 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,796 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: [] [2024-11-12 20:53:00,807 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 [2024-11-12 20:53:00,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,808 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) [2024-11-12 20:53:00,809 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 [2024-11-12 20:53:00,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,822 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,822 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: [] [2024-11-12 20:53:00,833 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 [2024-11-12 20:53:00,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,834 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) [2024-11-12 20:53:00,835 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 [2024-11-12 20:53:00,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,856 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,856 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:00,870 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 [2024-11-12 20:53:00,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,871 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) [2024-11-12 20:53:00,872 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 [2024-11-12 20:53:00,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,893 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:00,894 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:00,903 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 [2024-11-12 20:53:00,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,905 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) [2024-11-12 20:53:00,906 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 [2024-11-12 20:53:00,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:00,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:00,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-12 20:53:00,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:00,937 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) [2024-11-12 20:53:00,939 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 [2024-11-12 20:53:00,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:00,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,013 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:01,018 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 [2024-11-12 20:53:01,018 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:01,018 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:01,018 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:01,019 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:01,019 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:01,019 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,019 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:01,019 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:01,019 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-12 20:53:01,019 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:01,019 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:01,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,092 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:01,092 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:01,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,094 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) [2024-11-12 20:53:01,096 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 [2024-11-12 20:53:01,098 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 [2024-11-12 20:53:01,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,116 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,130 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 [2024-11-12 20:53:01,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,132 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) [2024-11-12 20:53:01,133 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 [2024-11-12 20:53:01,134 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 [2024-11-12 20:53:01,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,166 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,169 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 [2024-11-12 20:53:01,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-12 20:53:01,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,183 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) [2024-11-12 20:53:01,184 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 [2024-11-12 20:53:01,185 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 [2024-11-12 20:53:01,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:53:01,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:53:01,202 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-12 20:53:01,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,218 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) [2024-11-12 20:53:01,220 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 [2024-11-12 20:53:01,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:53:01,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,236 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-12 20:53:01,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,251 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) [2024-11-12 20:53:01,253 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 [2024-11-12 20:53:01,253 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 [2024-11-12 20:53:01,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:01,267 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:53:01,267 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:53:01,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,269 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) [2024-11-12 20:53:01,270 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 [2024-11-12 20:53:01,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:01,272 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:01,272 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:01,272 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 [] [2024-11-12 20:53:01,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:01,284 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:01,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:01,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:01,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:01,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:01,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:01,365 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 [2024-11-12 20:53:01,365 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-11-12 20:53:01,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 294 states and 399 transitions. Complement of second has 6 states. [2024-11-12 20:53:01,393 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 [2024-11-12 20:53:01,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-11-12 20:53:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2024-11-12 20:53:01,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 10 letters. [2024-11-12 20:53:01,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:01,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 27 letters. Loop has 10 letters. [2024-11-12 20:53:01,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:01,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 20 letters. [2024-11-12 20:53:01,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:01,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 399 transitions. [2024-11-12 20:53:01,397 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2024-11-12 20:53:01,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 199 states and 267 transitions. [2024-11-12 20:53:01,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-11-12 20:53:01,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-12 20:53:01,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 267 transitions. [2024-11-12 20:53:01,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:01,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 199 states and 267 transitions. [2024-11-12 20:53:01,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 267 transitions. [2024-11-12 20:53:01,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 107. [2024-11-12 20:53:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 106 states have internal predecessors, (149), 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) [2024-11-12 20:53:01,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2024-11-12 20:53:01,410 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 149 transitions. [2024-11-12 20:53:01,410 INFO L426 stractBuchiCegarLoop]: Abstraction has 107 states and 149 transitions. [2024-11-12 20:53:01,411 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 20:53:01,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 149 transitions. [2024-11-12 20:53:01,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-12 20:53:01,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:53:01,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:53:01,412 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:53:01,412 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:53:01,412 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-12 20:53:01,412 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" [2024-11-12 20:53:01,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:01,412 INFO L85 PathProgramCache]: Analyzing trace with hash -805755733, now seen corresponding path program 4 times [2024-11-12 20:53:01,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195072102] [2024-11-12 20:53:01,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:01,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,422 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:01,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:01,429 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2024-11-12 20:53:01,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:01,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005022440] [2024-11-12 20:53:01,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:01,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,432 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:01,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash 303194512, now seen corresponding path program 5 times [2024-11-12 20:53:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:01,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092120105] [2024-11-12 20:53:01,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:01,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,439 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:01,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:01,484 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:01,484 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:01,484 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:01,484 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:01,485 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:01,485 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,485 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:01,485 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:01,485 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-12 20:53:01,485 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:01,485 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:01,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,529 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:01,529 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:01,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,531 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) [2024-11-12 20:53:01,532 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 [2024-11-12 20:53:01,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:01,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,551 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:01,551 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:01,564 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 [2024-11-12 20:53:01,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,565 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) [2024-11-12 20:53:01,566 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 [2024-11-12 20:53:01,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:01,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,578 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:01,578 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: [] [2024-11-12 20:53:01,588 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 [2024-11-12 20:53:01,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,590 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) [2024-11-12 20:53:01,591 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 [2024-11-12 20:53:01,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:01,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,610 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:01,610 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:01,620 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 [2024-11-12 20:53:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,622 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) [2024-11-12 20:53:01,623 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 [2024-11-12 20:53:01,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:01,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,640 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:01,641 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:01,651 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 [2024-11-12 20:53:01,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,653 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) [2024-11-12 20:53:01,654 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 [2024-11-12 20:53:01,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:01,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,676 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 [2024-11-12 20:53:01,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,677 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2024-11-12 20:53:01,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-12 20:53:01,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:01,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:01,769 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:01,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-12 20:53:01,773 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:01,773 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:01,773 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:01,773 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:01,773 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:01,773 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,773 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:01,773 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:01,773 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-12 20:53:01,773 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:01,774 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:01,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:01,812 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:01,812 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:01,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,814 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2024-11-12 20:53:01,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-12 20:53:01,818 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 [2024-11-12 20:53:01,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:53:01,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:53:01,832 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-12 20:53:01,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,844 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2024-11-12 20:53:01,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-12 20:53:01,846 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 [2024-11-12 20:53:01,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,859 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-12 20:53:01,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,870 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2024-11-12 20:53:01,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-12 20:53:01,871 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 [2024-11-12 20:53:01,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:53:01,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:53:01,886 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:01,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,902 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2024-11-12 20:53:01,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-12 20:53:01,905 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 [2024-11-12 20:53:01,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,921 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:01,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:01,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,938 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2024-11-12 20:53:01,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-12 20:53:01,939 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 [2024-11-12 20:53:01,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:01,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:01,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:01,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:01,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:01,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:01,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:01,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:01,958 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:53:01,958 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:53:01,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:01,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:01,960 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2024-11-12 20:53:01,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-12 20:53:01,962 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:01,962 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:01,962 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:01,962 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 [] [2024-11-12 20:53:01,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-12 20:53:01,977 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:01,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:01,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:01,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,014 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:02,056 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 [2024-11-12 20:53:02,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 142 states and 186 transitions. Complement of second has 9 states. [2024-11-12 20:53:02,090 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 [2024-11-12 20:53:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-11-12 20:53:02,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-12 20:53:02,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,091 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:53:02,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,134 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:02,180 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 [2024-11-12 20:53:02,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,214 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 142 states and 186 transitions. Complement of second has 9 states. [2024-11-12 20:53:02,215 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 [2024-11-12 20:53:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-11-12 20:53:02,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-12 20:53:02,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,216 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:53:02,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,255 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:02,299 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 [2024-11-12 20:53:02,300 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 107 states and 149 transitions. cyclomatic complexity: 53. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 193 states and 241 transitions. Complement of second has 8 states. [2024-11-12 20:53:02,338 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 [2024-11-12 20:53:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-11-12 20:53:02,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-12 20:53:02,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2024-11-12 20:53:02,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 6 letters. [2024-11-12 20:53:02,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 241 transitions. [2024-11-12 20:53:02,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:02,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 120 states and 154 transitions. [2024-11-12 20:53:02,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-12 20:53:02,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-12 20:53:02,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 154 transitions. [2024-11-12 20:53:02,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:02,345 INFO L218 hiAutomatonCegarLoop]: Abstraction has 120 states and 154 transitions. [2024-11-12 20:53:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 154 transitions. [2024-11-12 20:53:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 78. [2024-11-12 20:53:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 77 states have internal predecessors, (103), 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) [2024-11-12 20:53:02,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2024-11-12 20:53:02,355 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 103 transitions. [2024-11-12 20:53:02,355 INFO L426 stractBuchiCegarLoop]: Abstraction has 78 states and 103 transitions. [2024-11-12 20:53:02,355 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-12 20:53:02,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 103 transitions. [2024-11-12 20:53:02,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:02,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:53:02,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:53:02,358 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-12 20:53:02,358 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:53:02,358 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:02,358 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:02,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,359 INFO L85 PathProgramCache]: Analyzing trace with hash 523865717, now seen corresponding path program 1 times [2024-11-12 20:53:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274399158] [2024-11-12 20:53:02,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:02,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:53:02,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274399158] [2024-11-12 20:53:02,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274399158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:53:02,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044954833] [2024-11-12 20:53:02,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:02,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:53:02,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,406 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:53:02,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-12 20:53:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:53:02,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044954833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:53:02,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:53:02,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-12 20:53:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907849030] [2024-11-12 20:53:02,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:53:02,483 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:53:02,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 2 times [2024-11-12 20:53:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:02,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611488221] [2024-11-12 20:53:02,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:02,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:02,486 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:02,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:02,505 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:02,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:02,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:02,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:02,506 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:02,506 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,506 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:02,506 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:02,506 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-12 20:53:02,506 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:02,506 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:02,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,550 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:02,550 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:02,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,551 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2024-11-12 20:53:02,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-12 20:53:02,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:02,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:02,578 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 [2024-11-12 20:53:02,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:02,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:02,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,597 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2024-11-12 20:53:02,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-12 20:53:02,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:02,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:02,657 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:02,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-11-12 20:53:02,661 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:02,661 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:02,661 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:02,661 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:02,661 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:02,661 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,661 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:02,661 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:02,661 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-12 20:53:02,661 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:02,662 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:02,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:02,704 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:02,705 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:02,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,707 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2024-11-12 20:53:02,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-12 20:53:02,708 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 [2024-11-12 20:53:02,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:02,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:02,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:02,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:02,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:02,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:02,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:02,721 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:02,723 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:53:02,723 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:53:02,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:02,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,726 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2024-11-12 20:53:02,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-12 20:53:02,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:02,728 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:02,728 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:02,728 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 [] [2024-11-12 20:53:02,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:02,743 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:02,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,796 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:02,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:02,816 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 [2024-11-12 20:53:02,816 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 103 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,835 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 103 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 236 states and 315 transitions. Complement of second has 7 states. [2024-11-12 20:53:02,836 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 [2024-11-12 20:53:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:53:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-12 20:53:02,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 21 letters. Loop has 3 letters. [2024-11-12 20:53:02,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 24 letters. Loop has 3 letters. [2024-11-12 20:53:02,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 21 letters. Loop has 6 letters. [2024-11-12 20:53:02,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:02,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 315 transitions. [2024-11-12 20:53:02,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:02,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 177 states and 231 transitions. [2024-11-12 20:53:02,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-12 20:53:02,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-12 20:53:02,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 231 transitions. [2024-11-12 20:53:02,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:02,844 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 231 transitions. [2024-11-12 20:53:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 231 transitions. [2024-11-12 20:53:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 139. [2024-11-12 20:53:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.3093525179856116) internal successors, (182), 138 states have internal predecessors, (182), 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) [2024-11-12 20:53:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 182 transitions. [2024-11-12 20:53:02,849 INFO L240 hiAutomatonCegarLoop]: Abstraction has 139 states and 182 transitions. [2024-11-12 20:53:02,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:53:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:53:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:53:02,850 INFO L87 Difference]: Start difference. First operand 139 states and 182 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2024-11-12 20:53:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:53:02,866 INFO L93 Difference]: Finished difference Result 128 states and 166 transitions. [2024-11-12 20:53:02,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 166 transitions. [2024-11-12 20:53:02,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:02,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 121 states and 159 transitions. [2024-11-12 20:53:02,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-12 20:53:02,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-12 20:53:02,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 159 transitions. [2024-11-12 20:53:02,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:02,867 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 159 transitions. [2024-11-12 20:53:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 159 transitions. [2024-11-12 20:53:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-12 20:53:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 120 states have internal predecessors, (159), 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) [2024-11-12 20:53:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2024-11-12 20:53:02,878 INFO L240 hiAutomatonCegarLoop]: Abstraction has 121 states and 159 transitions. [2024-11-12 20:53:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:53:02,878 INFO L426 stractBuchiCegarLoop]: Abstraction has 121 states and 159 transitions. [2024-11-12 20:53:02,878 INFO L333 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-12 20:53:02,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states and 159 transitions. [2024-11-12 20:53:02,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:02,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:53:02,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:53:02,880 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-12 20:53:02,880 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:53:02,880 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } 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;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:02,880 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:02,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,880 INFO L85 PathProgramCache]: Analyzing trace with hash 633405827, now seen corresponding path program 2 times [2024-11-12 20:53:02,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:02,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106324265] [2024-11-12 20:53:02,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:02,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:02,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:53:02,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106324265] [2024-11-12 20:53:02,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106324265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:53:02,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199509237] [2024-11-12 20:53:02,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:53:02,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:53:02,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:02,949 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:53:02,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-12 20:53:02,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 20:53:02,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:53:02,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-12 20:53:02,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889302656] [2024-11-12 20:53:02,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 20:53:02,983 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:53:02,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 3 times [2024-11-12 20:53:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:02,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115481072] [2024-11-12 20:53:02,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:02,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:02,986 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:02,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:03,009 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:03,009 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:03,009 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:03,009 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:03,010 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:03,010 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,010 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:03,010 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:03,010 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-11-12 20:53:03,010 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:03,010 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:03,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,053 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:03,054 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,056 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2024-11-12 20:53:03,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-12 20:53:03,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:03,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,083 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:03,083 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:03,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-12 20:53:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,100 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2024-11-12 20:53:03,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-12 20:53:03,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:03,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,126 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:03,127 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: [] [2024-11-12 20:53:03,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:03,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,143 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2024-11-12 20:53:03,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-12 20:53:03,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:03,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,159 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:03,159 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: [] [2024-11-12 20:53:03,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:03,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,176 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2024-11-12 20:53:03,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-12 20:53:03,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:03,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,200 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:03,200 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:03,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-11-12 20:53:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,211 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2024-11-12 20:53:03,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-12 20:53:03,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:03,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:03,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,236 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2024-11-12 20:53:03,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-12 20:53:03,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:03,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:03,296 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:03,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-12 20:53:03,300 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:03,300 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:03,300 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:03,300 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:03,300 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:03,300 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,300 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:03,300 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:03,301 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-11-12 20:53:03,301 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:03,301 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:03,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:03,356 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:03,356 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:03,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,358 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2024-11-12 20:53:03,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-12 20:53:03,360 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 [2024-11-12 20:53:03,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:03,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:03,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:03,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:03,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:03,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:03,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:03,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:03,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-12 20:53:03,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,390 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2024-11-12 20:53:03,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-12 20:53:03,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:53:03,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:03,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:03,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:03,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:03,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:53:03,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:53:03,407 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:03,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-12 20:53:03,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,419 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2024-11-12 20:53:03,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-12 20:53:03,420 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 [2024-11-12 20:53:03,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:03,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:03,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:03,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:03,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:03,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:03,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:03,431 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:03,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-11-12 20:53:03,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,443 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2024-11-12 20:53:03,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-12 20:53:03,444 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 [2024-11-12 20:53:03,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:03,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:03,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:03,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:03,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:03,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:03,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:03,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:03,458 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:53:03,458 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:53:03,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:03,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,461 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2024-11-12 20:53:03,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-12 20:53:03,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:03,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:03,462 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:03,462 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 [] [2024-11-12 20:53:03,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-12 20:53:03,473 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:03,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:03,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,529 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:03,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:03,550 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 [2024-11-12 20:53:03,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 121 states and 159 transitions. cyclomatic complexity: 51 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-12 20:53:03,568 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 121 states and 159 transitions. cyclomatic complexity: 51. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 157 states and 202 transitions. Complement of second has 7 states. [2024-11-12 20:53:03,568 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 [2024-11-12 20:53:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-12 20:53:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-12 20:53:03,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 3 letters. [2024-11-12 20:53:03,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:03,569 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:53:03,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:03,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,622 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:03,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:03,645 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 [2024-11-12 20:53:03,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 121 states and 159 transitions. cyclomatic complexity: 51 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-12 20:53:03,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 121 states and 159 transitions. cyclomatic complexity: 51. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 248 states and 315 transitions. Complement of second has 9 states. [2024-11-12 20:53:03,675 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 [2024-11-12 20:53:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-12 20:53:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2024-11-12 20:53:03,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 27 letters. Loop has 3 letters. [2024-11-12 20:53:03,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:03,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 30 letters. Loop has 3 letters. [2024-11-12 20:53:03,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:03,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 27 letters. Loop has 6 letters. [2024-11-12 20:53:03,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:03,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 315 transitions. [2024-11-12 20:53:03,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:03,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 238 states and 300 transitions. [2024-11-12 20:53:03,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-12 20:53:03,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-12 20:53:03,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 300 transitions. [2024-11-12 20:53:03,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:03,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 238 states and 300 transitions. [2024-11-12 20:53:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 300 transitions. [2024-11-12 20:53:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 198. [2024-11-12 20:53:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.2878787878787878) internal successors, (255), 197 states have internal predecessors, (255), 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) [2024-11-12 20:53:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2024-11-12 20:53:03,689 INFO L240 hiAutomatonCegarLoop]: Abstraction has 198 states and 255 transitions. [2024-11-12 20:53:03,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:53:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:53:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:53:03,689 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-12 20:53:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:53:03,712 INFO L93 Difference]: Finished difference Result 164 states and 204 transitions. [2024-11-12 20:53:03,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 204 transitions. [2024-11-12 20:53:03,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:03,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 150 states and 189 transitions. [2024-11-12 20:53:03,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-12 20:53:03,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-12 20:53:03,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 189 transitions. [2024-11-12 20:53:03,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:53:03,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 150 states and 189 transitions. [2024-11-12 20:53:03,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 189 transitions. [2024-11-12 20:53:03,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 139. [2024-11-12 20:53:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 138 states have internal predecessors, (178), 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) [2024-11-12 20:53:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 178 transitions. [2024-11-12 20:53:03,718 INFO L240 hiAutomatonCegarLoop]: Abstraction has 139 states and 178 transitions. [2024-11-12 20:53:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:53:03,718 INFO L426 stractBuchiCegarLoop]: Abstraction has 139 states and 178 transitions. [2024-11-12 20:53:03,718 INFO L333 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-12 20:53:03,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 178 transitions. [2024-11-12 20:53:03,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:53:03,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:53:03,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:53:03,720 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-12 20:53:03,720 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:53:03,720 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } 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;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#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;" "main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1;" "assume !main_#t~short3#1;" "assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;" "main_~x~0#1 := main_~x~0#1 - 1;" "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:03,720 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1;" [2024-11-12 20:53:03,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:03,720 INFO L85 PathProgramCache]: Analyzing trace with hash -133258535, now seen corresponding path program 1 times [2024-11-12 20:53:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:03,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708640375] [2024-11-12 20:53:03,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:03,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:53:03,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708640375] [2024-11-12 20:53:03,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708640375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:53:03,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364040650] [2024-11-12 20:53:03,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:03,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:53:03,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:03,867 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:53:03,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-12 20:53:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:03,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 20:53:03,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:03,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:03,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-12 20:53:04,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:53:04,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364040650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:53:04,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:53:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-12 20:53:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334627803] [2024-11-12 20:53:04,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:53:04,231 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:53:04,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:04,231 INFO L85 PathProgramCache]: Analyzing trace with hash 66686, now seen corresponding path program 4 times [2024-11-12 20:53:04,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:53:04,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79542895] [2024-11-12 20:53:04,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:53:04,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:53:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:04,234 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:53:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:53:04,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:53:04,257 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:04,257 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:04,257 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:04,257 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:04,257 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:53:04,257 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,257 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:04,258 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:04,258 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-11-12 20:53:04,258 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:04,258 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:04,258 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,294 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:04,294 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:53:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,295 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2024-11-12 20:53:04,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-12 20:53:04,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:04,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:04,307 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:04,307 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: [] [2024-11-12 20:53:04,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-12 20:53:04,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,318 INFO L229 MonitoredProcess]: Starting monitored process 79 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) [2024-11-12 20:53:04,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-12 20:53:04,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:04,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:04,337 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:53:04,337 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:53:04,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:04,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,349 INFO L229 MonitoredProcess]: Starting monitored process 80 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) [2024-11-12 20:53:04,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-12 20:53:04,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:53:04,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:04,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:04,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,373 INFO L229 MonitoredProcess]: Starting monitored process 81 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) [2024-11-12 20:53:04,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-12 20:53:04,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:53:04,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:53:04,435 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:53:04,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:04,439 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:53:04,439 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:53:04,439 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:53:04,439 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:53:04,440 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:53:04,440 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,440 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:53:04,440 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:53:04,440 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-11-12 20:53:04,440 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:53:04,440 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:53:04,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:53:04,485 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:53:04,486 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:53:04,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,487 INFO L229 MonitoredProcess]: Starting monitored process 82 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) [2024-11-12 20:53:04,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-12 20:53:04,488 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 [2024-11-12 20:53:04,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:04,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:04,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:04,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:04,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:04,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:04,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:04,500 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:04,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:04,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,512 INFO L229 MonitoredProcess]: Starting monitored process 83 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) [2024-11-12 20:53:04,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-12 20:53:04,514 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 [2024-11-12 20:53:04,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:04,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:04,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:04,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:04,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:53:04,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:53:04,528 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:53:04,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2024-11-12 20:53:04,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,544 INFO L229 MonitoredProcess]: Starting monitored process 84 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) [2024-11-12 20:53:04,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-12 20:53:04,546 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 [2024-11-12 20:53:04,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:53:04,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:53:04,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:53:04,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:53:04,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:53:04,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:53:04,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:53:04,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:53:04,563 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:53:04,563 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:53:04,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:53:04,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:53:04,564 INFO L229 MonitoredProcess]: Starting monitored process 85 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) [2024-11-12 20:53:04,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-11-12 20:53:04,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:53:04,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:53:04,565 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:53:04,565 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 [] [2024-11-12 20:53:04,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2024-11-12 20:53:04,576 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:53:04,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,642 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:04,657 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 [2024-11-12 20:53:04,657 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54 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) [2024-11-12 20:53:04,670 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54. 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 187 states and 238 transitions. Complement of second has 7 states. [2024-11-12 20:53:04,671 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 [2024-11-12 20:53:04,671 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) [2024-11-12 20:53:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-12 20:53:04,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-12 20:53:04,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:04,672 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:53:04,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,741 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:04,764 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 [2024-11-12 20:53:04,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54 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) [2024-11-12 20:53:04,788 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54. 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 247 states and 311 transitions. Complement of second has 9 states. [2024-11-12 20:53:04,789 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 [2024-11-12 20:53:04,789 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) [2024-11-12 20:53:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2024-11-12 20:53:04,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-12 20:53:04,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:04,790 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:53:04,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:53:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:53:04,851 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:53:04,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:53:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:53:04,875 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 [2024-11-12 20:53:04,875 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54 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) [2024-11-12 20:53:04,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 178 transitions. cyclomatic complexity: 54. 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 269 states and 353 transitions. Complement of second has 8 states. [2024-11-12 20:53:04,891 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 [2024-11-12 20:53:04,891 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) [2024-11-12 20:53:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-12 20:53:04,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-12 20:53:04,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:04,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 36 letters. Loop has 3 letters. [2024-11-12 20:53:04,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:04,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 33 letters. Loop has 6 letters. [2024-11-12 20:53:04,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:53:04,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 353 transitions. [2024-11-12 20:53:04,894 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:53:04,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 0 states and 0 transitions. [2024-11-12 20:53:04,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 20:53:04,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 20:53:04,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 20:53:04,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:53:04,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:53:04,894 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:53:04,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:53:04,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 20:53:04,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-12 20:53:04,895 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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) [2024-11-12 20:53:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:53:04,896 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-12 20:53:04,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-12 20:53:04,896 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:53:04,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 20:53:04,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 20:53:04,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 20:53:04,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 20:53:04,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:53:04,896 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:53:04,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:53:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 20:53:04,897 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:53:04,897 INFO L333 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-12 20:53:04,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 20:53:04,897 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:53:04,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 20:53:04,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:53:04 BoogieIcfgContainer [2024-11-12 20:53:04,904 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:53:04,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:53:04,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:53:04,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:53:04,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:52:56" (3/4) ... [2024-11-12 20:53:04,908 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:53:04,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:53:04,909 INFO L158 Benchmark]: Toolchain (without parser) took 9394.60ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 82.0MB in the beginning and 118.6MB in the end (delta: -36.6MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,909 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 130.0MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:53:04,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.55ms. Allocated memory is still 130.0MB. Free memory was 82.0MB in the beginning and 70.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.84ms. Allocated memory is still 130.0MB. Free memory was 70.1MB in the beginning and 69.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:53:04,910 INFO L158 Benchmark]: Boogie Preprocessor took 25.57ms. Allocated memory is still 130.0MB. Free memory was 69.0MB in the beginning and 67.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,910 INFO L158 Benchmark]: RCFGBuilder took 298.22ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 102.1MB in the end (delta: -34.8MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,911 INFO L158 Benchmark]: BuchiAutomizer took 8794.62ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 102.1MB in the beginning and 119.7MB in the end (delta: -17.5MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,911 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 226.5MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:53:04,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 130.0MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.55ms. Allocated memory is still 130.0MB. Free memory was 82.0MB in the beginning and 70.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.84ms. Allocated memory is still 130.0MB. Free memory was 70.1MB in the beginning and 69.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.57ms. Allocated memory is still 130.0MB. Free memory was 69.0MB in the beginning and 67.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.22ms. Allocated memory is still 130.0MB. Free memory was 67.4MB in the beginning and 102.1MB in the end (delta: -34.8MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 8794.62ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 102.1MB in the beginning and 119.7MB in the end (delta: -17.5MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 226.5MB. Free memory was 119.7MB in the beginning and 118.6MB 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 14 terminating modules (5 trivial, 7 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 4 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 deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 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. 5 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 10 iterations. TraceHistogramMax:6. Analysis of lassos took 6.2s. Construction of modules took 0.3s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 12. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 274 StatesRemovedByMinimization, 10 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 [6, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 345 mSDsluCounter, 463 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 249 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax185 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 22 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-12 20:53:04,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2024-11-12 20:53:05,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-12 20:53:05,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-12 20:53:05,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-12 20:53:05,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-12 20:53:05,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-12 20:53:06,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE