./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 61a67961 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-wip.fs.cvc5-61a6796-m [2024-10-15 00:10:21,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:10:21,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-15 00:10:21,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:10:21,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:10:21,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:10:21,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:10:21,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:10:21,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:10:21,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:10:21,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:10:21,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:10:21,279 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:10:21,279 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-15 00:10:21,279 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-15 00:10:21,282 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-15 00:10:21,282 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-15 00:10:21,282 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-15 00:10:21,283 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-15 00:10:21,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:10:21,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-15 00:10:21,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:10:21,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:10:21,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-15 00:10:21,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-15 00:10:21,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:10:21,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:10:21,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:10:21,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:10:21,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:10:21,291 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-15 00:10:21,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2024-10-15 00:10:21,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:10:21,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:10:21,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:10:21,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:10:21,599 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:10:21,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2024-10-15 00:10:23,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:10:23,329 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:10:23,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2024-10-15 00:10:23,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e004691e/eee381e13c784f419859329c7519eb4b/FLAGe48165847 [2024-10-15 00:10:23,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e004691e/eee381e13c784f419859329c7519eb4b [2024-10-15 00:10:23,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:10:23,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:10:23,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:10:23,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:10:23,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:10:23,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:23,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33888da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23, skipping insertion in model container [2024-10-15 00:10:23,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:23,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:10:23,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:10:23,929 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:10:23,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:10:23,957 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:10:23,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23 WrapperNode [2024-10-15 00:10:23,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:10:23,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:10:23,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:10:23,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:10:23,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:23,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:23,988 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-10-15 00:10:23,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:10:23,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:10:23,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:10:23,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:10:24,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,012 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-15 00:10:24,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:10:24,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:10:24,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:10:24,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:10:24,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (1/1) ... [2024-10-15 00:10:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:24,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:24,059 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) [2024-10-15 00:10:24,062 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 [2024-10-15 00:10:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:10:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:10:24,234 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:10:24,242 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:10:24,392 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-15 00:10:24,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:10:24,406 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:10:24,409 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 00:10:24,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:24 BoogieIcfgContainer [2024-10-15 00:10:24,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:10:24,411 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-15 00:10:24,412 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-15 00:10:24,416 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-15 00:10:24,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:24,417 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 12:10:23" (1/3) ... [2024-10-15 00:10:24,419 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a81557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:10:24, skipping insertion in model container [2024-10-15 00:10:24,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:24,419 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:23" (2/3) ... [2024-10-15 00:10:24,420 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a81557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:10:24, skipping insertion in model container [2024-10-15 00:10:24,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:24,420 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:24" (3/3) ... [2024-10-15 00:10:24,423 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2024-10-15 00:10:24,486 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-15 00:10:24,486 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-15 00:10:24,486 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-15 00:10:24,486 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-15 00:10:24,486 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-15 00:10:24,487 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-15 00:10:24,487 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-15 00:10:24,487 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-15 00:10:24,491 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) [2024-10-15 00:10:24,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-15 00:10:24,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:24,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:24,516 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:10:24,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:24,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-15 00:10:24,517 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) [2024-10-15 00:10:24,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-15 00:10:24,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:24,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:24,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:10:24,519 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:24,527 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L27-2true [2024-10-15 00:10:24,528 INFO L747 eck$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 [2024-10-15 00:10:24,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:24,535 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-15 00:10:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:24,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759929060] [2024-10-15 00:10:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:24,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times [2024-10-15 00:10:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:24,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715447362] [2024-10-15 00:10:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:24,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:24,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:24,683 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times [2024-10-15 00:10:24,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:24,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751252144] [2024-10-15 00:10:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:24,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:24,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:24,864 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:24,865 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:24,865 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:24,865 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:24,866 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:24,866 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:24,866 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:24,866 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:24,866 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2024-10-15 00:10:24,866 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:24,866 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:24,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:24,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:24,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:24,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:24,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,024 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:25,024 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:25,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,028 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) [2024-10-15 00:10:25,029 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 [2024-10-15 00:10:25,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,060 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:25,060 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: [] [2024-10-15 00:10:25,080 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 [2024-10-15 00:10:25,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,083 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) [2024-10-15 00:10:25,085 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 [2024-10-15 00:10:25,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,112 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:25,112 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: [] [2024-10-15 00:10:25,130 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 [2024-10-15 00:10:25,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,134 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) [2024-10-15 00:10:25,135 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 [2024-10-15 00:10:25,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,170 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 [2024-10-15 00:10:25,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,174 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) [2024-10-15 00:10:25,177 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 [2024-10-15 00:10:25,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:25,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,209 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:25,215 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 [2024-10-15 00:10:25,215 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:25,216 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:25,216 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:25,216 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:25,216 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:25,216 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,216 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:25,216 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:25,216 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2024-10-15 00:10:25,216 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:25,216 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:25,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,326 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:25,332 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:25,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,336 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) [2024-10-15 00:10:25,339 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 [2024-10-15 00:10:25,341 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 [2024-10-15 00:10:25,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:25,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:25,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:25,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:25,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:25,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:25,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:25,368 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:25,373 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:10:25,374 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-15 00:10:25,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,392 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) [2024-10-15 00:10:25,394 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 [2024-10-15 00:10:25,396 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:25,396 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:25,397 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:25,397 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 [] [2024-10-15 00:10:25,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-15 00:10:25,414 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:25,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:25,466 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:25,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:25,485 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:25,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:25,550 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 [2024-10-15 00:10:25,551 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) [2024-10-15 00:10:25,610 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. [2024-10-15 00:10:25,615 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 [2024-10-15 00:10:25,621 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) [2024-10-15 00:10:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-10-15 00:10:25,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-15 00:10:25,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:25,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-15 00:10:25,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:25,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-15 00:10:25,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:25,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 41 transitions. [2024-10-15 00:10:25,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-15 00:10:25,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 26 transitions. [2024-10-15 00:10:25,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-15 00:10:25,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-15 00:10:25,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2024-10-15 00:10:25,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:25,642 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2024-10-15 00:10:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2024-10-15 00:10:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-15 00:10:25,673 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) [2024-10-15 00:10:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2024-10-15 00:10:25,675 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2024-10-15 00:10:25,677 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2024-10-15 00:10:25,677 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-15 00:10:25,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2024-10-15 00:10:25,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-15 00:10:25,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:25,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:25,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-15 00:10:25,680 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:25,680 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 [2024-10-15 00:10:25,680 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 [2024-10-15 00:10:25,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:25,681 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-15 00:10:25,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:25,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102779626] [2024-10-15 00:10:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:25,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:25,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times [2024-10-15 00:10:25,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:25,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273863937] [2024-10-15 00:10:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:25,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:25,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:25,719 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times [2024-10-15 00:10:25,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:25,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061475765] [2024-10-15 00:10:25,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:25,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:25,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:25,777 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:25,778 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:25,778 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:25,778 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:25,778 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:25,778 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,778 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:25,778 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:25,778 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2024-10-15 00:10:25,778 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:25,778 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:25,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:25,865 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:25,865 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:25,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,867 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) [2024-10-15 00:10:25,869 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 [2024-10-15 00:10:25,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,895 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:25,895 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: [] [2024-10-15 00:10:25,911 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 [2024-10-15 00:10:25,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,914 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) [2024-10-15 00:10:25,915 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 [2024-10-15 00:10:25,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,939 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:25,939 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: [] [2024-10-15 00:10:25,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:25,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,952 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) [2024-10-15 00:10:25,954 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 [2024-10-15 00:10:25,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:25,975 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:25,975 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: [] [2024-10-15 00:10:25,986 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 [2024-10-15 00:10:25,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:25,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:25,988 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) [2024-10-15 00:10:25,989 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 [2024-10-15 00:10:25,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:25,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:26,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,025 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) [2024-10-15 00:10:26,026 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 [2024-10-15 00:10:26,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:26,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,104 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:26,109 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 [2024-10-15 00:10:26,109 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:26,109 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:26,109 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:26,109 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:26,110 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:26,110 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,110 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:26,110 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:26,110 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2024-10-15 00:10:26,110 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:26,110 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:26,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,182 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:26,182 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,186 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) [2024-10-15 00:10:26,188 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 [2024-10-15 00:10:26,189 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 [2024-10-15 00:10:26,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:26,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:26,210 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:26,227 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 [2024-10-15 00:10:26,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,230 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) [2024-10-15 00:10:26,232 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 [2024-10-15 00:10:26,234 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 [2024-10-15 00:10:26,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:26,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:26,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:26,253 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:26,269 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 [2024-10-15 00:10:26,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,274 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) [2024-10-15 00:10:26,277 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 [2024-10-15 00:10:26,277 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 [2024-10-15 00:10:26,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:26,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:26,300 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:26,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:26,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,343 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) [2024-10-15 00:10:26,347 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 [2024-10-15 00:10:26,349 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 [2024-10-15 00:10:26,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-15 00:10:26,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:26,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:26,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:26,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:26,379 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:10:26,379 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-15 00:10:26,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,382 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) [2024-10-15 00:10:26,385 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 [2024-10-15 00:10:26,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:26,386 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:26,386 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:26,386 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 [] [2024-10-15 00:10:26,404 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 [2024-10-15 00:10:26,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:26,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:26,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:26,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:26,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:26,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:26,453 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 [2024-10-15 00:10:26,453 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) [2024-10-15 00:10:26,486 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. [2024-10-15 00:10:26,487 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 [2024-10-15 00:10:26,489 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) [2024-10-15 00:10:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-15 00:10:26,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-15 00:10:26,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:26,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-15 00:10:26,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:26,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-15 00:10:26,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:26,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions. [2024-10-15 00:10:26,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-15 00:10:26,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions. [2024-10-15 00:10:26,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-15 00:10:26,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-15 00:10:26,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions. [2024-10-15 00:10:26,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:26,498 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions. [2024-10-15 00:10:26,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions. [2024-10-15 00:10:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2024-10-15 00:10:26,504 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) [2024-10-15 00:10:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions. [2024-10-15 00:10:26,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions. [2024-10-15 00:10:26,505 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions. [2024-10-15 00:10:26,505 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-15 00:10:26,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions. [2024-10-15 00:10:26,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-15 00:10:26,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:26,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:26,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-15 00:10:26,508 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:26,508 INFO L745 eck$LassoCheckResult]: Stem: 182#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 188#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 201#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 185#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 189#L27-2 [2024-10-15 00:10:26,508 INFO L747 eck$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 [2024-10-15 00:10:26,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-15 00:10:26,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:26,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199185007] [2024-10-15 00:10:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:26,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:26,526 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2024-10-15 00:10:26,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:26,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304732064] [2024-10-15 00:10:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:26,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:26,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times [2024-10-15 00:10:26,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:26,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370336064] [2024-10-15 00:10:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:26,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:26,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:26,578 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:26,579 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:26,579 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:26,579 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:26,579 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:26,579 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,579 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:26,579 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:26,580 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2024-10-15 00:10:26,580 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:26,580 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:26,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,647 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:26,647 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:26,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,649 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) [2024-10-15 00:10:26,652 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 [2024-10-15 00:10:26,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:26,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,673 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:26,673 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: [] [2024-10-15 00:10:26,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:26,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,688 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) [2024-10-15 00:10:26,689 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 [2024-10-15 00:10:26,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:26,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,708 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:26,708 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: [] [2024-10-15 00:10:26,720 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 [2024-10-15 00:10:26,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,722 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) [2024-10-15 00:10:26,724 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 [2024-10-15 00:10:26,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:26,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,747 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:26,747 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: [] [2024-10-15 00:10:26,758 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 [2024-10-15 00:10:26,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,760 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) [2024-10-15 00:10:26,761 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 [2024-10-15 00:10:26,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:26,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,783 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 [2024-10-15 00:10:26,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,787 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) [2024-10-15 00:10:26,788 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 [2024-10-15 00:10:26,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:26,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:26,824 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:26,830 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 [2024-10-15 00:10:26,831 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:26,831 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:26,831 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:26,831 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:26,831 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:26,831 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,831 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:26,831 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:26,832 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2024-10-15 00:10:26,832 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:26,832 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:26,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:26,903 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:26,904 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:26,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,912 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) [2024-10-15 00:10:26,914 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 [2024-10-15 00:10:26,914 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 [2024-10-15 00:10:26,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:26,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:26,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:26,934 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:26,949 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 [2024-10-15 00:10:26,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,952 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) [2024-10-15 00:10:26,953 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 [2024-10-15 00:10:26,953 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 [2024-10-15 00:10:26,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:26,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:26,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:26,971 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:26,983 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 [2024-10-15 00:10:26,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:26,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:26,985 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) [2024-10-15 00:10:26,986 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 [2024-10-15 00:10:26,987 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 [2024-10-15 00:10:26,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:26,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:26,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:26,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:26,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:26,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:26,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:27,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:27,005 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-15 00:10:27,005 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:10:27,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:27,007 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) [2024-10-15 00:10:27,010 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 [2024-10-15 00:10:27,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:27,011 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:27,011 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:27,011 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 [] [2024-10-15 00:10:27,027 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 [2024-10-15 00:10:27,028 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:27,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,068 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:27,084 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 [2024-10-15 00:10:27,084 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) [2024-10-15 00:10:27,126 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. [2024-10-15 00:10:27,129 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 [2024-10-15 00:10:27,130 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) [2024-10-15 00:10:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2024-10-15 00:10:27,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-15 00:10:27,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-15 00:10:27,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-15 00:10:27,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions. [2024-10-15 00:10:27,137 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-15 00:10:27,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions. [2024-10-15 00:10:27,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-15 00:10:27,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-15 00:10:27,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions. [2024-10-15 00:10:27,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:27,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions. [2024-10-15 00:10:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions. [2024-10-15 00:10:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-15 00:10:27,146 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) [2024-10-15 00:10:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions. [2024-10-15 00:10:27,148 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions. [2024-10-15 00:10:27,148 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions. [2024-10-15 00:10:27,148 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-15 00:10:27,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions. [2024-10-15 00:10:27,149 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-15 00:10:27,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:27,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:27,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2024-10-15 00:10:27,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:27,152 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 [2024-10-15 00:10:27,152 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 [2024-10-15 00:10:27,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times [2024-10-15 00:10:27,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:27,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652793848] [2024-10-15 00:10:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:27,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,178 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times [2024-10-15 00:10:27,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:27,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101463136] [2024-10-15 00:10:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:27,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:27,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,199 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times [2024-10-15 00:10:27,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576542995] [2024-10-15 00:10:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:27,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:27,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:27,279 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:27,279 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:27,279 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:27,279 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:27,279 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:27,279 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,279 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:27,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:27,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2024-10-15 00:10:27,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:27,279 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:27,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,356 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:27,357 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:27,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:27,359 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) [2024-10-15 00:10:27,361 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 [2024-10-15 00:10:27,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:27,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:27,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-15 00:10:27,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:27,398 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) [2024-10-15 00:10:27,399 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 [2024-10-15 00:10:27,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:27,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:27,484 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:27,489 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 [2024-10-15 00:10:27,489 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:27,489 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:27,489 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:27,489 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:27,489 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:27,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,489 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:27,489 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:27,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2024-10-15 00:10:27,490 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:27,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:27,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:27,572 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:27,572 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:27,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:27,575 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) [2024-10-15 00:10:27,577 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 [2024-10-15 00:10:27,578 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 [2024-10-15 00:10:27,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:27,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:27,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:27,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:27,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:27,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:27,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:27,592 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:27,597 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-15 00:10:27,598 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:10:27,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:27,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:27,599 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) [2024-10-15 00:10:27,600 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 [2024-10-15 00:10:27,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:27,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:27,601 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:27,601 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 [] [2024-10-15 00:10:27,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:27,614 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:27,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,657 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:27,676 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 [2024-10-15 00:10:27,676 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) [2024-10-15 00:10:27,728 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. [2024-10-15 00:10:27,729 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 [2024-10-15 00:10:27,730 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) [2024-10-15 00:10:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-15 00:10:27,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-15 00:10:27,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,730 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:10:27,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,769 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:27,783 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 [2024-10-15 00:10:27,783 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) [2024-10-15 00:10:27,818 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. [2024-10-15 00:10:27,818 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 [2024-10-15 00:10:27,819 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) [2024-10-15 00:10:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-15 00:10:27,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-15 00:10:27,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,820 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:10:27,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,854 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:27,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:27,869 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 [2024-10-15 00:10:27,869 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) [2024-10-15 00:10:27,903 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. [2024-10-15 00:10:27,903 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 [2024-10-15 00:10:27,904 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) [2024-10-15 00:10:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-15 00:10:27,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-15 00:10:27,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-15 00:10:27,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-15 00:10:27,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:27,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions. [2024-10-15 00:10:27,913 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2024-10-15 00:10:27,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions. [2024-10-15 00:10:27,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-10-15 00:10:27,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2024-10-15 00:10:27,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions. [2024-10-15 00:10:27,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:27,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions. [2024-10-15 00:10:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions. [2024-10-15 00:10:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2024-10-15 00:10:27,929 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) [2024-10-15 00:10:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2024-10-15 00:10:27,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions. [2024-10-15 00:10:27,934 INFO L425 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2024-10-15 00:10:27,934 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-15 00:10:27,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2024-10-15 00:10:27,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-10-15 00:10:27,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:27,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:27,936 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-15 00:10:27,936 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:27,939 INFO L745 eck$LassoCheckResult]: Stem: 810#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 811#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 816#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 844#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 860#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 857#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 824#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 825#L27 [2024-10-15 00:10:27,952 INFO L747 eck$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 [2024-10-15 00:10:27,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times [2024-10-15 00:10:27,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:27,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035284609] [2024-10-15 00:10:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:27,978 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 [2024-10-15 00:10:28,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-15 00:10:28,045 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 [2024-10-15 00:10:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:28,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:10:28,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035284609] [2024-10-15 00:10:28,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035284609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:10:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:10:28,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:10:28,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382658916] [2024-10-15 00:10:28,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:10:28,084 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:10:28,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times [2024-10-15 00:10:28,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:28,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804961436] [2024-10-15 00:10:28,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:28,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:28,135 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:28,135 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:28,136 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:28,136 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:28,136 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:28,136 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,136 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:28,136 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:28,136 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2024-10-15 00:10:28,136 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:28,136 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:28,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,209 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:28,209 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:28,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,212 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) [2024-10-15 00:10:28,214 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 [2024-10-15 00:10:28,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,232 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:28,233 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: [] [2024-10-15 00:10:28,244 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 [2024-10-15 00:10:28,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,246 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) [2024-10-15 00:10:28,248 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 [2024-10-15 00:10:28,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,266 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:28,267 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: [] [2024-10-15 00:10:28,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:28,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,287 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) [2024-10-15 00:10:28,288 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 [2024-10-15 00:10:28,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,307 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:28,307 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: [] [2024-10-15 00:10:28,322 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 [2024-10-15 00:10:28,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,324 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) [2024-10-15 00:10:28,326 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 [2024-10-15 00:10:28,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,350 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:28,350 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: [] [2024-10-15 00:10:28,361 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 [2024-10-15 00:10:28,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,363 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) [2024-10-15 00:10:28,364 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 [2024-10-15 00:10:28,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,384 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:28,384 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: [] [2024-10-15 00:10:28,395 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 [2024-10-15 00:10:28,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,397 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) [2024-10-15 00:10:28,398 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 [2024-10-15 00:10:28,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,420 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 [2024-10-15 00:10:28,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,422 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) [2024-10-15 00:10:28,423 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 [2024-10-15 00:10:28,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:28,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:28,492 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:28,497 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 [2024-10-15 00:10:28,497 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:28,497 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:28,497 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:28,497 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:28,497 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:28,497 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,498 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:28,498 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:28,498 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2024-10-15 00:10:28,498 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:28,498 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:28,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,564 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:28,564 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:28,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,566 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) [2024-10-15 00:10:28,567 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 [2024-10-15 00:10:28,568 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 [2024-10-15 00:10:28,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:28,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:28,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:28,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:28,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:28,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:28,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:28,580 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:28,594 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 [2024-10-15 00:10:28,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,596 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) [2024-10-15 00:10:28,597 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 [2024-10-15 00:10:28,597 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 [2024-10-15 00:10:28,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:28,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:28,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:28,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:28,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:28,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:28,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:28,610 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:28,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:28,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,624 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) [2024-10-15 00:10:28,625 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 [2024-10-15 00:10:28,627 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 [2024-10-15 00:10:28,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:28,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:28,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:28,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:28,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:28,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:28,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:28,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:28,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:28,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,652 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) [2024-10-15 00:10:28,653 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 [2024-10-15 00:10:28,654 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 [2024-10-15 00:10:28,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:28,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:28,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:28,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:28,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:28,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:28,670 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:28,681 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 [2024-10-15 00:10:28,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,682 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) [2024-10-15 00:10:28,683 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 [2024-10-15 00:10:28,684 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 [2024-10-15 00:10:28,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:28,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:28,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:28,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:28,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:28,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:28,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:28,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:28,700 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-15 00:10:28,701 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:10:28,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,703 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) [2024-10-15 00:10:28,704 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 [2024-10-15 00:10:28,705 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:28,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:28,705 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:28,705 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 [] [2024-10-15 00:10:28,721 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 [2024-10-15 00:10:28,722 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:28,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:28,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:28,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:28,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:28,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:28,796 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 [2024-10-15 00:10:28,797 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) [2024-10-15 00:10:28,823 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. [2024-10-15 00:10:28,824 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 [2024-10-15 00:10:28,825 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) [2024-10-15 00:10:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-15 00:10:28,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-15 00:10:28,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:28,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2024-10-15 00:10:28,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:28,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2024-10-15 00:10:28,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:28,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions. [2024-10-15 00:10:28,832 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2024-10-15 00:10:28,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions. [2024-10-15 00:10:28,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-10-15 00:10:28,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-15 00:10:28,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions. [2024-10-15 00:10:28,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:28,834 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions. [2024-10-15 00:10:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions. [2024-10-15 00:10:28,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2024-10-15 00:10:28,845 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) [2024-10-15 00:10:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions. [2024-10-15 00:10:28,847 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions. [2024-10-15 00:10:28,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:10:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:10:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:10:28,850 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) [2024-10-15 00:10:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:10:28,865 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2024-10-15 00:10:28,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions. [2024-10-15 00:10:28,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-15 00:10:28,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions. [2024-10-15 00:10:28,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-15 00:10:28,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-15 00:10:28,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions. [2024-10-15 00:10:28,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-15 00:10:28,867 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions. [2024-10-15 00:10:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions. [2024-10-15 00:10:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2024-10-15 00:10:28,870 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) [2024-10-15 00:10:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2024-10-15 00:10:28,871 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-15 00:10:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:10:28,873 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-15 00:10:28,874 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-15 00:10:28,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2024-10-15 00:10:28,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-15 00:10:28,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:28,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:28,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-15 00:10:28,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-15 00:10:28,875 INFO L745 eck$LassoCheckResult]: Stem: 1340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1346#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1358#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1354#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1375#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1350#L19 [2024-10-15 00:10:28,875 INFO L747 eck$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 [2024-10-15 00:10:28,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:28,875 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times [2024-10-15 00:10:28,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828577683] [2024-10-15 00:10:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:28,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:28,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times [2024-10-15 00:10:28,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:28,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674961812] [2024-10-15 00:10:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:28,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:28,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times [2024-10-15 00:10:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:28,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636177557] [2024-10-15 00:10:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:28,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:28,937 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:28,937 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:28,937 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:28,937 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:28,937 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:28,937 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,937 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:28,937 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:28,937 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2024-10-15 00:10:28,937 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:28,937 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:28,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:28,983 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:28,984 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:28,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:28,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:28,986 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) [2024-10-15 00:10:28,987 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 [2024-10-15 00:10:28,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:28,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,007 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:29,007 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: [] [2024-10-15 00:10:29,018 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 [2024-10-15 00:10:29,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,019 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) [2024-10-15 00:10:29,020 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 [2024-10-15 00:10:29,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:29,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,033 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:29,033 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: [] [2024-10-15 00:10:29,045 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 [2024-10-15 00:10:29,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,046 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) [2024-10-15 00:10:29,047 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 [2024-10-15 00:10:29,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:29,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,067 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:29,068 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: [] [2024-10-15 00:10:29,079 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 [2024-10-15 00:10:29,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,081 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) [2024-10-15 00:10:29,082 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 [2024-10-15 00:10:29,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:29,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,102 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:29,102 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: [] [2024-10-15 00:10:29,114 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 [2024-10-15 00:10:29,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,115 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) [2024-10-15 00:10:29,116 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 [2024-10-15 00:10:29,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:29,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:29,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,142 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) [2024-10-15 00:10:29,143 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 [2024-10-15 00:10:29,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:29,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:29,204 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:29,209 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 [2024-10-15 00:10:29,210 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:29,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:29,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:29,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:29,210 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:29,210 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,210 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:29,210 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:29,210 INFO L132 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2024-10-15 00:10:29,210 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:29,210 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:29,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:29,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:29,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:29,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:29,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:29,264 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:29,264 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:29,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,266 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) [2024-10-15 00:10:29,267 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 [2024-10-15 00:10:29,267 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 [2024-10-15 00:10:29,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:29,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:29,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:29,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:29,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:29,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:29,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:29,280 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:29,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:29,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,293 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) [2024-10-15 00:10:29,294 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 [2024-10-15 00:10:29,294 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 [2024-10-15 00:10:29,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:29,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:29,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:29,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:29,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:29,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:29,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:29,307 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:29,317 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 [2024-10-15 00:10:29,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,320 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) [2024-10-15 00:10:29,320 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 [2024-10-15 00:10:29,321 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 [2024-10-15 00:10:29,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:29,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:29,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:29,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:29,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:29,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:29,341 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:29,357 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 [2024-10-15 00:10:29,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,360 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) [2024-10-15 00:10:29,361 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 [2024-10-15 00:10:29,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:10:29,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:29,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:29,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:29,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:29,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:29,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:29,377 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:29,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,396 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) [2024-10-15 00:10:29,397 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 [2024-10-15 00:10:29,398 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 [2024-10-15 00:10:29,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:29,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:29,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:29,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:29,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:29,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:29,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:29,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:29,415 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-15 00:10:29,415 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:10:29,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:29,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:29,416 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) [2024-10-15 00:10:29,417 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 [2024-10-15 00:10:29,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:29,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:29,418 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:29,418 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 [] [2024-10-15 00:10:29,429 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 [2024-10-15 00:10:29,430 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:29,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:29,474 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 [2024-10-15 00:10:29,474 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) [2024-10-15 00:10:29,497 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. [2024-10-15 00:10:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-15 00:10:29,500 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) [2024-10-15 00:10:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-15 00:10:29,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-15 00:10:29,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:29,500 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:10:29,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:29,540 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 [2024-10-15 00:10:29,540 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) [2024-10-15 00:10:29,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-15 00:10:29,580 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. [2024-10-15 00:10:29,581 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 [2024-10-15 00:10:29,581 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) [2024-10-15 00:10:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-15 00:10:29,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-15 00:10:29,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:29,582 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-15 00:10:29,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-10-15 00:10:29,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:29,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:29,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:29,630 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 [2024-10-15 00:10:29,630 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) [2024-10-15 00:10:29,651 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. [2024-10-15 00:10:29,652 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 [2024-10-15 00:10:29,652 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) [2024-10-15 00:10:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-10-15 00:10:29,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-15 00:10:29,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:29,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-15 00:10:29,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:29,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters. [2024-10-15 00:10:29,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:29,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions. [2024-10-15 00:10:29,655 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:10:29,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions. [2024-10-15 00:10:29,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:10:29,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:10:29,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:10:29,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:10:29,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:29,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:29,656 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:29,656 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-15 00:10:29,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-15 00:10:29,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:10:29,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-15 00:10:29,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 12:10:29 BoogieIcfgContainer [2024-10-15 00:10:29,665 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-15 00:10:29,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:10:29,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:10:29,666 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:10:29,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:24" (3/4) ... [2024-10-15 00:10:29,669 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-15 00:10:29,671 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:10:29,672 INFO L158 Benchmark]: Toolchain (without parser) took 5941.71ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 82.3MB in the beginning and 141.2MB in the end (delta: -58.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:29,672 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 113.2MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:29,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.12ms. Allocated memory is still 148.9MB. Free memory was 82.2MB in the beginning and 71.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 00:10:29,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.91ms. Allocated memory is still 148.9MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:10:29,673 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 148.9MB. Free memory was 70.4MB in the beginning and 69.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:10:29,674 INFO L158 Benchmark]: RCFGBuilder took 387.45ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 119.0MB in the end (delta: -50.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-10-15 00:10:29,674 INFO L158 Benchmark]: BuchiAutomizer took 5254.76ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 119.0MB in the beginning and 141.2MB in the end (delta: -22.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-10-15 00:10:29,674 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:29,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 113.2MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.12ms. Allocated memory is still 148.9MB. Free memory was 82.2MB in the beginning and 71.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.91ms. Allocated memory is still 148.9MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.36ms. Allocated memory is still 148.9MB. Free memory was 70.4MB in the beginning and 69.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.45ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 119.0MB in the end (delta: -50.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5254.76ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 119.0MB in the beginning and 141.2MB in the end (delta: -22.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. 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 5.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.2s 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: 27ms 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! [2024-10-15 00:10:29,702 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