./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.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 fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:49:08,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:49:08,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-24 23:49:08,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:49:08,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:49:08,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:49:08,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:49:08,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:49:08,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:49:08,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:49:08,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:49:08,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:49:08,383 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:49:08,384 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-24 23:49:08,384 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-24 23:49:08,384 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-24 23:49:08,385 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-24 23:49:08,385 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-24 23:49:08,385 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-24 23:49:08,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:49:08,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-24 23:49:08,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:49:08,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:49:08,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-24 23:49:08,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-24 23:49:08,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-24 23:49:08,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:49:08,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:49:08,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:49:08,392 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-24 23:49:08,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:49:08,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:49:08,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:49:08,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:49:08,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:49:08,393 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-24 23:49:08,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2024-10-24 23:49:08,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:49:08,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:49:08,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:49:08,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:49:08,690 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:49:08,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2024-10-24 23:49:10,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:49:10,220 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:49:10,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2024-10-24 23:49:10,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6356f2c0/f3d4c93edb1d4ff99283704431161d83/FLAGcc4c84f2b [2024-10-24 23:49:10,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6356f2c0/f3d4c93edb1d4ff99283704431161d83 [2024-10-24 23:49:10,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:49:10,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:49:10,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:49:10,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:49:10,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:49:10,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a94903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10, skipping insertion in model container [2024-10-24 23:49:10,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:49:10,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:49:10,460 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:49:10,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:49:10,487 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:49:10,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10 WrapperNode [2024-10-24 23:49:10,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:49:10,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:49:10,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:49:10,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:49:10,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,514 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-10-24 23:49:10,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:49:10,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:49:10,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:49:10,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:49:10,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,532 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 23:49:10,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:49:10,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:49:10,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:49:10,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:49:10,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (1/1) ... [2024-10-24 23:49:10,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:10,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:10,584 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) [2024-10-24 23:49:10,588 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 [2024-10-24 23:49:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:49:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:49:10,693 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:49:10,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:49:10,752 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-24 23:49:10,753 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:49:10,774 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:49:10,777 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 23:49:10,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:10 BoogieIcfgContainer [2024-10-24 23:49:10,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:49:10,778 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-24 23:49:10,778 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-24 23:49:10,782 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-24 23:49:10,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:10,783 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.10 11:49:10" (1/3) ... [2024-10-24 23:49:10,784 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ade66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:49:10, skipping insertion in model container [2024-10-24 23:49:10,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:10,784 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:10" (2/3) ... [2024-10-24 23:49:10,785 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ade66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:49:10, skipping insertion in model container [2024-10-24 23:49:10,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:10,786 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:10" (3/3) ... [2024-10-24 23:49:10,787 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2024-10-24 23:49:10,899 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-24 23:49:10,899 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-24 23:49:10,899 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-24 23:49:10,899 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-24 23:49:10,900 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-24 23:49:10,900 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-24 23:49:10,900 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-24 23:49:10,901 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-24 23:49:10,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-24 23:49:10,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-24 23:49:10,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:10,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:10,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-24 23:49:10,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:10,930 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-24 23:49:10,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-24 23:49:10,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-24 23:49:10,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:10,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:10,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-24 23:49:10,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:10,940 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L27-2true [2024-10-24 23:49:10,943 INFO L747 eck$LassoCheckResult]: Loop: 10#L27-2true assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 8#L19true assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 5#L27true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 10#L27-2true [2024-10-24 23:49:10,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-24 23:49:10,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675109239] [2024-10-24 23:49:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:10,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,065 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times [2024-10-24 23:49:11,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:11,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720197357] [2024-10-24 23:49:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:11,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times [2024-10-24 23:49:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976036352] [2024-10-24 23:49:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:11,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,186 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:11,187 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:11,187 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:11,187 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:11,188 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:11,188 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,188 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:11,188 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:11,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2024-10-24 23:49:11,189 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:11,189 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:11,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,331 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:11,332 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:11,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,336 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) [2024-10-24 23:49:11,337 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 [2024-10-24 23:49:11,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:11,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:11,362 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:11,362 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: [] [2024-10-24 23:49:11,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:11,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,379 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) [2024-10-24 23:49:11,380 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 [2024-10-24 23:49:11,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:11,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:11,402 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:11,402 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: [] [2024-10-24 23:49:11,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:11,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,420 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) [2024-10-24 23:49:11,422 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 [2024-10-24 23:49:11,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:11,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:11,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-24 23:49:11,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,448 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) [2024-10-24 23:49:11,449 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 [2024-10-24 23:49:11,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:11,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:11,479 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:11,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-24 23:49:11,484 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:11,484 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:11,484 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:11,484 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:11,484 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:11,485 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,485 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:11,485 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:11,485 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2024-10-24 23:49:11,485 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:11,485 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:11,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,584 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:11,589 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:11,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,593 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) [2024-10-24 23:49:11,595 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 [2024-10-24 23:49:11,596 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 [2024-10-24 23:49:11,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:11,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:11,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:11,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:11,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:11,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:11,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:11,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:11,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-24 23:49:11,623 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:49:11,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:11,648 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) [2024-10-24 23:49:11,650 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 [2024-10-24 23:49:11,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:11,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:11,652 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:11,652 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 [] [2024-10-24 23:49:11,667 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 [2024-10-24 23:49:11,673 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:11,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:11,719 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:11,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:11,735 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:11,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:11,787 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 [2024-10-24 23:49:11,789 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2024-10-24 23:49:11,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 26 states and 41 transitions. Complement of second has 8 states. [2024-10-24 23:49:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2024-10-24 23:49:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-10-24 23:49:11,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-24 23:49:11,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-24 23:49:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-24 23:49:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:11,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 41 transitions. [2024-10-24 23:49:11,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-24 23:49:11,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 26 transitions. [2024-10-24 23:49:11,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-24 23:49:11,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-24 23:49:11,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2024-10-24 23:49:11,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:11,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2024-10-24 23:49:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2024-10-24 23:49:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-24 23:49:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 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) [2024-10-24 23:49:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2024-10-24 23:49:11,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2024-10-24 23:49:11,882 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2024-10-24 23:49:11,882 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-24 23:49:11,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2024-10-24 23:49:11,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-24 23:49:11,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:11,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:11,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-24 23:49:11,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:11,884 INFO L745 eck$LassoCheckResult]: Stem: 82#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 83#L-1 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~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 89#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 93#L19 [2024-10-24 23:49:11,884 INFO L747 eck$LassoCheckResult]: Loop: 93#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 90#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 91#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 93#L19 [2024-10-24 23:49:11,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-24 23:49:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:11,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921273474] [2024-10-24 23:49:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times [2024-10-24 23:49:11,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:11,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586486752] [2024-10-24 23:49:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:11,915 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times [2024-10-24 23:49:11,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:11,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025567385] [2024-10-24 23:49:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:11,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:11,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:11,976 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:11,976 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:11,976 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:11,976 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:11,977 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:11,977 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:11,977 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:11,977 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:11,977 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2024-10-24 23:49:11,977 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:11,977 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:11,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:11,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,050 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:12,051 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:12,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,053 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) [2024-10-24 23:49:12,055 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 [2024-10-24 23:49:12,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,080 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,080 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: [] [2024-10-24 23:49:12,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-24 23:49:12,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,098 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) [2024-10-24 23:49:12,099 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 [2024-10-24 23:49:12,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,122 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,122 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:12,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-24 23:49:12,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,140 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) [2024-10-24 23:49:12,142 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 [2024-10-24 23:49:12,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,166 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,166 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: [] [2024-10-24 23:49:12,177 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 [2024-10-24 23:49:12,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,179 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) [2024-10-24 23:49:12,181 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 [2024-10-24 23:49:12,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,211 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 [2024-10-24 23:49:12,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,213 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) [2024-10-24 23:49:12,215 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 [2024-10-24 23:49:12,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:12,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,294 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:12,299 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 [2024-10-24 23:49:12,299 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:12,299 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:12,299 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:12,299 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:12,300 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:12,300 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,300 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:12,300 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:12,300 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2024-10-24 23:49:12,308 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:12,308 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:12,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:12,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,388 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:12,389 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:12,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,391 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) [2024-10-24 23:49:12,392 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 [2024-10-24 23:49:12,393 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 [2024-10-24 23:49:12,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:12,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:12,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:12,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:12,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:49:12,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:49:12,418 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:12,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-24 23:49:12,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:12,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-24 23:49:12,438 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 [2024-10-24 23:49:12,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:12,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:12,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:12,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:12,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:12,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:12,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:12,453 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:12,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:12,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,466 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) [2024-10-24 23:49:12,466 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 [2024-10-24 23:49:12,467 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 [2024-10-24 23:49:12,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:12,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:12,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:12,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:12,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:49:12,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:49:12,487 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:12,502 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 [2024-10-24 23:49:12,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,505 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) [2024-10-24 23:49:12,507 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 [2024-10-24 23:49:12,508 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 [2024-10-24 23:49:12,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:12,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:12,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:12,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:12,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:12,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:12,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:12,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:12,529 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-24 23:49:12,529 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:49:12,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,531 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) [2024-10-24 23:49:12,532 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 [2024-10-24 23:49:12,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:12,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:12,534 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:12,534 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 [] [2024-10-24 23:49:12,545 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 [2024-10-24 23:49:12,546 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:12,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:12,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:12,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:12,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:12,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:12,602 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 [2024-10-24 23:49:12,602 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:12,632 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 71 transitions. Complement of second has 7 states. [2024-10-24 23:49:12,632 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 [2024-10-24 23:49:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-24 23:49:12,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-24 23:49:12,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:12,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-24 23:49:12,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:12,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-24 23:49:12,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:12,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions. [2024-10-24 23:49:12,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-24 23:49:12,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions. [2024-10-24 23:49:12,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-24 23:49:12,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-24 23:49:12,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions. [2024-10-24 23:49:12,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:12,639 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions. [2024-10-24 23:49:12,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions. [2024-10-24 23:49:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2024-10-24 23:49:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.606060606060606) internal successors, (53), 32 states have internal predecessors, (53), 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) [2024-10-24 23:49:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions. [2024-10-24 23:49:12,647 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions. [2024-10-24 23:49:12,648 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions. [2024-10-24 23:49:12,648 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-24 23:49:12,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions. [2024-10-24 23:49:12,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-24 23:49:12,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:12,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:12,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-24 23:49:12,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:12,650 INFO L745 eck$LassoCheckResult]: Stem: 182#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 188#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 201#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 185#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 189#L27-2 [2024-10-24 23:49:12,650 INFO L747 eck$LassoCheckResult]: Loop: 189#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 208#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 206#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 189#L27-2 [2024-10-24 23:49:12,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-24 23:49:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:12,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347184352] [2024-10-24 23:49:12,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:12,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:12,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2024-10-24 23:49:12,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:12,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932677159] [2024-10-24 23:49:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:12,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:12,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times [2024-10-24 23:49:12,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:12,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998220050] [2024-10-24 23:49:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:12,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:12,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:12,718 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:12,718 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:12,718 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:12,718 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:12,719 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:12,719 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,719 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:12,719 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:12,719 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2024-10-24 23:49:12,719 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:12,719 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:12,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,784 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:12,784 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,786 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) [2024-10-24 23:49:12,788 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 [2024-10-24 23:49:12,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,804 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,805 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:12,820 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 [2024-10-24 23:49:12,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,822 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) [2024-10-24 23:49:12,824 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 [2024-10-24 23:49:12,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,843 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,843 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:12,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:12,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,855 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) [2024-10-24 23:49:12,857 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 [2024-10-24 23:49:12,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,876 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:12,876 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:12,886 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 [2024-10-24 23:49:12,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,888 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) [2024-10-24 23:49:12,889 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 [2024-10-24 23:49:12,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:12,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:12,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:12,912 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) [2024-10-24 23:49:12,913 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 [2024-10-24 23:49:12,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:12,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:12,950 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:12,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:12,954 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:12,955 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:12,955 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:12,955 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:12,955 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:12,955 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:12,955 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:12,955 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:12,955 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2024-10-24 23:49:12,955 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:12,955 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:12,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:12,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,023 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:13,023 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:13,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,031 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:13,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-24 23:49:13,036 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 [2024-10-24 23:49:13,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:13,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:13,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:13,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:13,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:13,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:13,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:13,051 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:13,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:13,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,069 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) [2024-10-24 23:49:13,071 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 [2024-10-24 23:49:13,072 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 [2024-10-24 23:49:13,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:13,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:13,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:13,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:13,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:13,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:13,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:13,095 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:13,109 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 [2024-10-24 23:49:13,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,111 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) [2024-10-24 23:49:13,113 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 [2024-10-24 23:49:13,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:13,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:13,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:13,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:13,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:13,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:13,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:13,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:13,133 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:13,135 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-24 23:49:13,135 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-24 23:49:13,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,139 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) [2024-10-24 23:49:13,140 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 [2024-10-24 23:49:13,140 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:13,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:13,141 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:13,141 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 [] [2024-10-24 23:49:13,155 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 [2024-10-24 23:49:13,159 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:13,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,191 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:13,208 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 [2024-10-24 23:49:13,208 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 78 transitions. Complement of second has 8 states. [2024-10-24 23:49:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-10-24 23:49:13,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-24 23:49:13,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-24 23:49:13,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-24 23:49:13,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions. [2024-10-24 23:49:13,244 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-24 23:49:13,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions. [2024-10-24 23:49:13,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-24 23:49:13,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-24 23:49:13,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions. [2024-10-24 23:49:13,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:13,246 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions. [2024-10-24 23:49:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions. [2024-10-24 23:49:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-24 23:49:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 41 states have internal predecessors, (66), 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) [2024-10-24 23:49:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions. [2024-10-24 23:49:13,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions. [2024-10-24 23:49:13,250 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions. [2024-10-24 23:49:13,250 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-24 23:49:13,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions. [2024-10-24 23:49:13,251 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-24 23:49:13,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:13,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:13,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2024-10-24 23:49:13,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:13,252 INFO L745 eck$LassoCheckResult]: Stem: 312#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 313#L-1 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~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 318#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 339#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 329#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 328#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 323#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 324#L27 [2024-10-24 23:49:13,252 INFO L747 eck$LassoCheckResult]: Loop: 324#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 349#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 347#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 324#L27 [2024-10-24 23:49:13,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times [2024-10-24 23:49:13,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137326685] [2024-10-24 23:49:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:13,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times [2024-10-24 23:49:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850726320] [2024-10-24 23:49:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:13,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,269 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times [2024-10-24 23:49:13,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:13,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455426355] [2024-10-24 23:49:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:13,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:13,344 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:13,345 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:13,345 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:13,345 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:13,345 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:13,345 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,345 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:13,345 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:13,345 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2024-10-24 23:49:13,345 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:13,345 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:13,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,413 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:13,413 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:13,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,415 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) [2024-10-24 23:49:13,416 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 [2024-10-24 23:49:13,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:13,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:13,447 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 [2024-10-24 23:49:13,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,449 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) [2024-10-24 23:49:13,450 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 [2024-10-24 23:49:13,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:13,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:13,521 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:13,525 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 [2024-10-24 23:49:13,526 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:13,526 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:13,526 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:13,526 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:13,526 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:13,526 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,526 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:13,526 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:13,526 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2024-10-24 23:49:13,526 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:13,526 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:13,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:13,594 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:13,594 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:13,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,597 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) [2024-10-24 23:49:13,598 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 [2024-10-24 23:49:13,599 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 [2024-10-24 23:49:13,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:13,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:13,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:13,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:13,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:13,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:13,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:13,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:13,619 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-24 23:49:13,619 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-24 23:49:13,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:13,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:13,621 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) [2024-10-24 23:49:13,622 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 [2024-10-24 23:49:13,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:13,623 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:13,623 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:13,623 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 [] [2024-10-24 23:49:13,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-24 23:49:13,635 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:13,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,666 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:13,677 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 [2024-10-24 23:49:13,678 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states. [2024-10-24 23:49:13,714 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 [2024-10-24 23:49:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-24 23:49:13,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-24 23:49:13,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,716 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:13,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,747 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:13,761 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-24 23:49:13,761 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,785 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states. [2024-10-24 23:49:13,786 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 [2024-10-24 23:49:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-24 23:49:13,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-24 23:49:13,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,787 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:13,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,816 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:13,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:13,828 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 2 loop predicates [2024-10-24 23:49:13,828 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 109 states and 163 transitions. Complement of second has 8 states. [2024-10-24 23:49:13,856 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 [2024-10-24 23:49:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-24 23:49:13,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-24 23:49:13,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-24 23:49:13,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-24 23:49:13,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:13,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions. [2024-10-24 23:49:13,860 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2024-10-24 23:49:13,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions. [2024-10-24 23:49:13,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-10-24 23:49:13,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2024-10-24 23:49:13,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions. [2024-10-24 23:49:13,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:13,865 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions. [2024-10-24 23:49:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions. [2024-10-24 23:49:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2024-10-24 23:49:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 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) [2024-10-24 23:49:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2024-10-24 23:49:13,873 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions. [2024-10-24 23:49:13,873 INFO L425 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2024-10-24 23:49:13,873 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-24 23:49:13,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2024-10-24 23:49:13,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-10-24 23:49:13,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:13,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:13,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-24 23:49:13,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:13,879 INFO L745 eck$LassoCheckResult]: Stem: 810#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 811#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 816#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 844#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 860#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 857#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 824#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 825#L27 [2024-10-24 23:49:13,879 INFO L747 eck$LassoCheckResult]: Loop: 825#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 807#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 854#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 825#L27 [2024-10-24 23:49:13,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times [2024-10-24 23:49:13,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:13,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006427066] [2024-10-24 23:49:13,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:13,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:13,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:49:13,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006427066] [2024-10-24 23:49:13,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006427066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:49:13,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:49:13,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:49:13,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114894572] [2024-10-24 23:49:13,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:49:13,985 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-24 23:49:13,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times [2024-10-24 23:49:13,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528935004] [2024-10-24 23:49:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:13,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:14,029 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:14,029 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:14,029 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:14,029 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:14,029 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:14,029 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,029 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:14,029 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:14,029 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2024-10-24 23:49:14,029 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:14,029 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:14,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,091 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:14,092 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:14,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,093 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) [2024-10-24 23:49:14,095 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 [2024-10-24 23:49:14,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,114 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,114 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:14,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-24 23:49:14,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,126 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) [2024-10-24 23:49:14,128 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 [2024-10-24 23:49:14,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,144 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,144 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:14,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-24 23:49:14,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,161 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) [2024-10-24 23:49:14,162 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 [2024-10-24 23:49:14,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,184 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,185 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:14,197 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 [2024-10-24 23:49:14,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,199 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) [2024-10-24 23:49:14,200 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 [2024-10-24 23:49:14,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,229 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,229 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: [] [2024-10-24 23:49:14,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-24 23:49:14,246 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 [2024-10-24 23:49:14,248 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 [2024-10-24 23:49:14,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,258 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) [2024-10-24 23:49:14,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:14,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,262 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 [2024-10-24 23:49:14,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,295 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,296 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: [] [2024-10-24 23:49:14,308 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 [2024-10-24 23:49:14,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,310 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) [2024-10-24 23:49:14,310 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 [2024-10-24 23:49:14,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-24 23:49:14,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,333 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) [2024-10-24 23:49:14,334 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 [2024-10-24 23:49:14,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:14,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,405 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:14,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-24 23:49:14,409 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:14,409 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:14,409 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:14,409 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:14,409 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:14,409 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,409 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:14,409 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:14,409 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2024-10-24 23:49:14,409 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:14,409 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:14,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,473 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:14,474 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:14,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,475 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) [2024-10-24 23:49:14,476 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 [2024-10-24 23:49:14,476 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 [2024-10-24 23:49:14,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:14,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:14,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:14,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:14,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:14,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:14,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:14,488 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:14,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:14,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,502 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) [2024-10-24 23:49:14,503 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 [2024-10-24 23:49:14,503 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 [2024-10-24 23:49:14,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:14,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:14,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:14,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:14,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:14,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:14,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:14,516 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:14,527 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 [2024-10-24 23:49:14,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,531 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) [2024-10-24 23:49:14,533 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 [2024-10-24 23:49:14,534 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 [2024-10-24 23:49:14,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:14,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:14,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:14,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:14,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:14,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:14,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:14,549 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:14,564 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 [2024-10-24 23:49:14,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,567 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) [2024-10-24 23:49:14,569 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 [2024-10-24 23:49:14,570 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 [2024-10-24 23:49:14,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:14,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:14,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:14,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:14,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:49:14,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:49:14,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:14,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-24 23:49:14,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,604 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) [2024-10-24 23:49:14,605 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 [2024-10-24 23:49:14,606 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 [2024-10-24 23:49:14,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:14,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:14,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:14,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:14,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:14,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:14,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:14,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:14,621 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-24 23:49:14,621 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-24 23:49:14,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,623 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) [2024-10-24 23:49:14,624 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 [2024-10-24 23:49:14,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:14,625 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:14,625 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:14,625 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 [] [2024-10-24 23:49:14,639 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 [2024-10-24 23:49:14,640 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:14,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:14,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:14,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:14,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:14,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:14,687 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 [2024-10-24 23:49:14,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:14,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 196 states and 321 transitions. Complement of second has 7 states. [2024-10-24 23:49:14,714 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 [2024-10-24 23:49:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-24 23:49:14,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-24 23:49:14,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:14,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-24 23:49:14,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:14,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-24 23:49:14,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:14,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions. [2024-10-24 23:49:14,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2024-10-24 23:49:14,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions. [2024-10-24 23:49:14,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-10-24 23:49:14,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-24 23:49:14,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions. [2024-10-24 23:49:14,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:14,725 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions. [2024-10-24 23:49:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions. [2024-10-24 23:49:14,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2024-10-24 23:49:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.638655462184874) internal successors, (195), 118 states have internal predecessors, (195), 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) [2024-10-24 23:49:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions. [2024-10-24 23:49:14,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions. [2024-10-24 23:49:14,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:49:14,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:49:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:49:14,737 INFO L87 Difference]: Start difference. First operand 119 states and 195 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:49:14,751 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2024-10-24 23:49:14,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions. [2024-10-24 23:49:14,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-24 23:49:14,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions. [2024-10-24 23:49:14,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-24 23:49:14,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-24 23:49:14,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions. [2024-10-24 23:49:14,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:14,753 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions. [2024-10-24 23:49:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions. [2024-10-24 23:49:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2024-10-24 23:49:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 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) [2024-10-24 23:49:14,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2024-10-24 23:49:14,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-24 23:49:14,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:49:14,757 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-24 23:49:14,757 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-24 23:49:14,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2024-10-24 23:49:14,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-24 23:49:14,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:14,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:14,758 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-24 23:49:14,758 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:14,758 INFO L745 eck$LassoCheckResult]: Stem: 1340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1346#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1358#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1354#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1375#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1350#L19 [2024-10-24 23:49:14,758 INFO L747 eck$LassoCheckResult]: Loop: 1350#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1347#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 1348#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1350#L19 [2024-10-24 23:49:14,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times [2024-10-24 23:49:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:14,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923709920] [2024-10-24 23:49:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:14,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:14,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:14,768 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times [2024-10-24 23:49:14,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:14,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422400004] [2024-10-24 23:49:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:14,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:14,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times [2024-10-24 23:49:14,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:14,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058129568] [2024-10-24 23:49:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:14,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:14,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:14,810 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:14,810 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:14,810 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:14,810 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:14,810 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:14,810 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,810 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:14,810 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:14,810 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2024-10-24 23:49:14,810 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:14,810 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:14,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:14,856 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:14,856 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:14,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,859 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) [2024-10-24 23:49:14,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,861 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 [2024-10-24 23:49:14,878 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,878 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:14,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:14,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,889 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) [2024-10-24 23:49:14,890 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 [2024-10-24 23:49:14,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,902 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,902 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: [] [2024-10-24 23:49:14,911 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 [2024-10-24 23:49:14,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,913 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) [2024-10-24 23:49:14,915 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 [2024-10-24 23:49:14,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,933 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,933 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: [] [2024-10-24 23:49:14,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-24 23:49:14,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,945 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) [2024-10-24 23:49:14,946 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 [2024-10-24 23:49:14,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,964 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:14,964 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: [] [2024-10-24 23:49:14,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-24 23:49:14,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:14,976 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) [2024-10-24 23:49:14,977 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 [2024-10-24 23:49:14,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:14,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:14,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-24 23:49:14,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:14,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,000 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) [2024-10-24 23:49:15,000 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 [2024-10-24 23:49:15,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:15,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:15,058 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:15,062 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 [2024-10-24 23:49:15,063 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:15,063 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:15,063 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:15,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:15,063 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:15,063 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,063 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:15,063 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:15,063 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2024-10-24 23:49:15,063 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:15,063 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:15,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:15,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:15,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:15,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:15,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:15,106 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:15,107 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:15,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,108 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) [2024-10-24 23:49:15,109 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 [2024-10-24 23:49:15,109 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 [2024-10-24 23:49:15,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:15,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:15,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:15,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:15,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:15,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:15,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:15,123 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:15,153 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 [2024-10-24 23:49:15,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,156 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) [2024-10-24 23:49:15,156 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 [2024-10-24 23:49:15,157 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 [2024-10-24 23:49:15,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:15,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:15,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:15,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:15,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:15,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:15,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:15,170 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:15,180 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 [2024-10-24 23:49:15,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,181 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) [2024-10-24 23:49:15,183 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 [2024-10-24 23:49:15,183 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 [2024-10-24 23:49:15,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:15,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:15,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:15,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:15,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:49:15,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:49:15,198 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:15,208 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 [2024-10-24 23:49:15,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,209 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) [2024-10-24 23:49:15,210 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 [2024-10-24 23:49:15,211 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 [2024-10-24 23:49:15,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:15,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:15,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:15,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:15,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-24 23:49:15,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-24 23:49:15,226 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:15,240 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 [2024-10-24 23:49:15,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,242 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) [2024-10-24 23:49:15,244 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 [2024-10-24 23:49:15,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:15,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:15,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:15,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:15,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:15,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:15,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:15,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:15,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:15,263 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-24 23:49:15,263 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-24 23:49:15,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:15,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:15,264 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) [2024-10-24 23:49:15,265 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 [2024-10-24 23:49:15,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:15,265 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:15,266 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:15,266 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 [] [2024-10-24 23:49:15,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:15,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:15,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:15,314 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 [2024-10-24 23:49:15,314 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states. [2024-10-24 23:49:15,332 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 [2024-10-24 23:49:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-24 23:49:15,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-24 23:49:15,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:15,333 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:15,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:15,373 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-24 23:49:15,373 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states. [2024-10-24 23:49:15,389 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 [2024-10-24 23:49:15,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-24 23:49:15,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-24 23:49:15,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:15,390 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:15,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:15,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:49:15,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:15,432 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 2 loop predicates [2024-10-24 23:49:15,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 129 transitions. Complement of second has 8 states. [2024-10-24 23:49:15,450 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 [2024-10-24 23:49:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-24 23:49:15,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-24 23:49:15,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:15,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-24 23:49:15,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:15,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters. [2024-10-24 23:49:15,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:15,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions. [2024-10-24 23:49:15,453 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:49:15,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions. [2024-10-24 23:49:15,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-24 23:49:15,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-24 23:49:15,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-24 23:49:15,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-24 23:49:15,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:15,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:15,454 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:15,454 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-24 23:49:15,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-24 23:49:15,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:49:15,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-24 23:49:15,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.10 11:49:15 BoogieIcfgContainer [2024-10-24 23:49:15,464 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-24 23:49:15,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:49:15,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:49:15,465 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:49:15,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:10" (3/4) ... [2024-10-24 23:49:15,468 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 23:49:15,469 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:49:15,470 INFO L158 Benchmark]: Toolchain (without parser) took 5226.55ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 125.1MB in the beginning and 81.2MB in the end (delta: 43.9MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,470 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 155.2MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:49:15,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.45ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 114.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.37ms. Allocated memory is still 155.2MB. Free memory was 114.0MB in the beginning and 112.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,471 INFO L158 Benchmark]: Boogie Preprocessor took 27.84ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 111.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,471 INFO L158 Benchmark]: RCFGBuilder took 230.49ms. Allocated memory is still 155.2MB. Free memory was 111.2MB in the beginning and 126.3MB in the end (delta: -15.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,471 INFO L158 Benchmark]: BuchiAutomizer took 4685.60ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 126.3MB in the beginning and 81.2MB in the end (delta: 45.1MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2024-10-24 23:49:15,471 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 186.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:49:15,473 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 155.2MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.45ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 114.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.37ms. Allocated memory is still 155.2MB. Free memory was 114.0MB in the beginning and 112.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.84ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 111.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 230.49ms. Allocated memory is still 155.2MB. Free memory was 111.2MB in the beginning and 126.3MB in the end (delta: -15.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4685.60ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 126.3MB in the beginning and 81.2MB in the end (delta: 45.1MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 186.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 5 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 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 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 [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 97 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf94 smp88 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-24 23:49:15,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:15,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:15,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE