./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/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d 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/Nyala-2lex-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:55:50,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:55:50,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:55:50,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:55:50,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:55:50,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:55:50,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:55:50,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:55:50,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:55:50,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:55:50,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:55:50,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:55:50,197 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:55:50,198 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:55:50,198 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:55:50,200 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:55:50,200 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:55:50,201 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:55:50,201 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:55:50,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:55:50,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:55:50,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:55:50,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:55:50,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:55:50,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:55:50,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:55:50,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:55:50,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:55:50,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:55:50,205 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:55:50,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:55:50,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:55:50,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:55:50,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:55:50,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:55:50,207 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:55:50,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb [2024-10-13 16:55:50,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:55:50,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:55:50,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:55:50,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:55:50,470 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:55:50,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-10-13 16:55:51,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:55:52,074 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:55:52,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-10-13 16:55:52,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c97ef1a06/d39963c6a87a4c22beecca00865202fa/FLAG7a193bffb [2024-10-13 16:55:52,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c97ef1a06/d39963c6a87a4c22beecca00865202fa [2024-10-13 16:55:52,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:55:52,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:55:52,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:55:52,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:55:52,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:55:52,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592f881e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52, skipping insertion in model container [2024-10-13 16:55:52,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:55:52,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:55:52,669 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:55:52,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:55:52,690 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:55:52,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52 WrapperNode [2024-10-13 16:55:52,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:55:52,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:55:52,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:55:52,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:55:52,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,716 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-10-13 16:55:52,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:55:52,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:55:52,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:55:52,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:55:52,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,730 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:55:52,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:55:52,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:55:52,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:55:52,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:55:52,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (1/1) ... [2024-10-13 16:55:52,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:52,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:52,772 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) [2024-10-13 16:55:52,774 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 [2024-10-13 16:55:52,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:55:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:55:52,872 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:55:52,874 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:55:52,920 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-13 16:55:52,921 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:55:52,929 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:55:52,929 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 16:55:52,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:55:52 BoogieIcfgContainer [2024-10-13 16:55:52,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:55:52,931 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:55:52,931 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:55:52,934 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:55:52,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:55:52,935 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:55:52" (1/3) ... [2024-10-13 16:55:52,936 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77eee774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:55:52, skipping insertion in model container [2024-10-13 16:55:52,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:55:52,936 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:55:52" (2/3) ... [2024-10-13 16:55:52,937 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77eee774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:55:52, skipping insertion in model container [2024-10-13 16:55:52,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:55:52,937 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:55:52" (3/3) ... [2024-10-13 16:55:52,938 INFO L332 chiAutomizerObserver]: Analyzing ICFG Nyala-2lex-2.c [2024-10-13 16:55:52,984 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:55:52,984 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:55:52,996 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:55:52,996 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:55:52,996 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:55:52,996 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:55:52,997 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:55:52,997 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:55:53,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:53,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:53,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:55:53,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:55:53,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:55:53,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:55:53,025 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:55:53,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:53,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:53,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:55:53,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:55:53,027 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:55:53,027 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:55:53,046 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L21-2true [2024-10-13 16:55:53,047 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 5#L21true assume !(main_~y~0#1 < 0); 7#L21-2true [2024-10-13 16:55:53,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 16:55:53,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:53,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033839204] [2024-10-13 16:55:53,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:53,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:53,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-13 16:55:53,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:53,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888119517] [2024-10-13 16:55:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:53,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:53,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-13 16:55:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:53,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787963853] [2024-10-13 16:55:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:53,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:53,283 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:53,284 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:53,284 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:53,284 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:53,284 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:55:53,284 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,285 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:53,285 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:53,285 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2024-10-13 16:55:53,285 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:53,285 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:53,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,379 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:53,380 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:55:53,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,385 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) [2024-10-13 16:55:53,386 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 [2024-10-13 16:55:53,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:53,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:53,413 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:53,413 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: [] [2024-10-13 16:55:53,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-13 16:55:53,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,427 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) [2024-10-13 16:55:53,428 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 [2024-10-13 16:55:53,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:53,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:53,448 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:53,448 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: [] [2024-10-13 16:55:53,459 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 [2024-10-13 16:55:53,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,460 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) [2024-10-13 16:55:53,461 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 [2024-10-13 16:55:53,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:53,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:53,484 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:53,485 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:55:53,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-13 16:55:53,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,501 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) [2024-10-13 16:55:53,502 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 [2024-10-13 16:55:53,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:53,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:53,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-13 16:55:53,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,529 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) [2024-10-13 16:55:53,530 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 [2024-10-13 16:55:53,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:55:53,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:53,594 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:55:53,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-13 16:55:53,599 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:53,599 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:53,599 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:53,599 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:53,599 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:55:53,599 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,600 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:53,600 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:53,600 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration1_Loop [2024-10-13 16:55:53,600 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:53,600 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:53,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:53,678 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:53,682 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:55:53,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,686 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) [2024-10-13 16:55:53,688 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 [2024-10-13 16:55:53,689 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 [2024-10-13 16:55:53,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:53,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:53,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:53,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:53,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:55:53,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:55:53,726 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:53,741 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 [2024-10-13 16:55:53,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,747 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) [2024-10-13 16:55:53,749 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 [2024-10-13 16:55:53,750 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 [2024-10-13 16:55:53,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:53,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:53,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:53,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:53,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:55:53,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:55:53,772 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:53,787 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 [2024-10-13 16:55:53,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,790 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) [2024-10-13 16:55:53,793 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 [2024-10-13 16:55:53,793 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 [2024-10-13 16:55:53,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:53,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:53,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:53,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:53,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:53,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:53,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:53,810 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:53,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-13 16:55:53,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,828 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) [2024-10-13 16:55:53,830 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 [2024-10-13 16:55:53,831 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 [2024-10-13 16:55:53,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:53,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:53,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:53,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:53,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:53,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:53,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:53,848 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:55:53,852 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:55:53,852 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:55:53,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:53,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:53,865 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) [2024-10-13 16:55:53,872 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:55:53,872 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:55:53,872 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:55:53,873 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 [] [2024-10-13 16:55:53,875 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 [2024-10-13 16:55:53,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-13 16:55:53,894 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:55:53,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:53,924 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:53,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:53,941 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:53,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:54,010 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 [2024-10-13 16:55:54,013 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 16:55:54,042 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 18 states and 26 transitions. Complement of second has 6 states. [2024-10-13 16:55:54,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 16:55:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-13 16:55:54,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-13 16:55:54,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-13 16:55:54,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-13 16:55:54,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 26 transitions. [2024-10-13 16:55:54,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:54,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 8 states and 10 transitions. [2024-10-13 16:55:54,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-13 16:55:54,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-13 16:55:54,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2024-10-13 16:55:54,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:55:54,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-10-13 16:55:54,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2024-10-13 16:55:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-13 16:55:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2024-10-13 16:55:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-10-13 16:55:54,079 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-13 16:55:54,079 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-13 16:55:54,080 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 16:55:54,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-10-13 16:55:54,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:54,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:55:54,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:55:54,081 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-13 16:55:54,081 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:55:54,081 INFO L745 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#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_~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; 68#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 64#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 63#L21-2 [2024-10-13 16:55:54,081 INFO L747 eck$LassoCheckResult]: Loop: 63#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 62#L21 assume !(main_~y~0#1 < 0); 63#L21-2 [2024-10-13 16:55:54,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,082 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-13 16:55:54,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519289863] [2024-10-13 16:55:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-10-13 16:55:54,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303505407] [2024-10-13 16:55:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,106 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-10-13 16:55:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473878463] [2024-10-13 16:55:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,150 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:54,151 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:54,151 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:54,151 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:54,151 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:55:54,151 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,151 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:54,151 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:54,151 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2024-10-13 16:55:54,151 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:54,151 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:54,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,203 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:54,203 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:55:54,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,205 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) [2024-10-13 16:55:54,207 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 [2024-10-13 16:55:54,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:54,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:54,231 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:54,231 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: [] [2024-10-13 16:55:54,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-13 16:55:54,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,250 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) [2024-10-13 16:55:54,251 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 [2024-10-13 16:55:54,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:54,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:54,283 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 [2024-10-13 16:55:54,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,285 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) [2024-10-13 16:55:54,286 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 [2024-10-13 16:55:54,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:55:54,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:54,356 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:55:54,360 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 [2024-10-13 16:55:54,360 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:54,360 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:54,360 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:54,361 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:54,361 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:55:54,361 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,361 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:54,361 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:54,361 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration2_Loop [2024-10-13 16:55:54,361 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:54,361 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:54,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,413 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:54,414 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:55:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,417 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) [2024-10-13 16:55:54,418 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 [2024-10-13 16:55:54,419 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 [2024-10-13 16:55:54,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:54,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:54,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:54,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:54,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:55:54,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:55:54,439 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:54,453 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 [2024-10-13 16:55:54,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,456 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) [2024-10-13 16:55:54,457 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 [2024-10-13 16:55:54,458 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 [2024-10-13 16:55:54,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:54,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:54,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:54,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:54,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:54,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:54,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:54,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:55:54,478 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:55:54,479 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:55:54,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,481 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) [2024-10-13 16:55:54,482 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 [2024-10-13 16:55:54,485 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:55:54,485 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:55:54,485 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:55:54,485 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 [] [2024-10-13 16:55:54,500 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 [2024-10-13 16:55:54,501 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:55:54,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:54,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:54,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:54,536 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:54,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:54,548 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 [2024-10-13 16:55:54,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-10-13 16:55:54,558 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 12 states and 15 transitions. Complement of second has 5 states. [2024-10-13 16:55:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-10-13 16:55:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-13 16:55:54,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-13 16:55:54,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:55:54,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-13 16:55:54,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:54,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2024-10-13 16:55:54,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:54,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2024-10-13 16:55:54,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-13 16:55:54,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-13 16:55:54,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-10-13 16:55:54,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:55:54,567 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-13 16:55:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-10-13 16:55:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-10-13 16:55:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-10-13 16:55:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-10-13 16:55:54,570 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-13 16:55:54,570 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-13 16:55:54,570 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 16:55:54,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-10-13 16:55:54,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:55:54,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:55:54,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:55:54,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-10-13 16:55:54,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:55:54,574 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 126#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 127#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 125#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 121#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 120#L21-2 [2024-10-13 16:55:54,574 INFO L747 eck$LassoCheckResult]: Loop: 120#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 119#L21 assume !(main_~y~0#1 < 0); 120#L21-2 [2024-10-13 16:55:54,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,575 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2024-10-13 16:55:54,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279576957] [2024-10-13 16:55:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-10-13 16:55:54,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436766786] [2024-10-13 16:55:54,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2024-10-13 16:55:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:54,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001332337] [2024-10-13 16:55:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:54,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:54,683 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:54,683 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:54,684 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:54,684 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:54,684 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:55:54,684 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,684 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:54,684 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:54,684 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2024-10-13 16:55:54,684 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:54,684 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:54,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,749 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:54,749 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:55:54,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,752 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) [2024-10-13 16:55:54,762 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 [2024-10-13 16:55:54,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:54,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:54,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-13 16:55:54,798 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 [2024-10-13 16:55:54,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-13 16:55:54,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,806 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) [2024-10-13 16:55:54,807 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 [2024-10-13 16:55:54,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:55:54,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:54,888 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:55:54,893 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 [2024-10-13 16:55:54,894 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:54,894 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:54,894 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:54,894 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:54,894 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:55:54,894 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,894 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:54,894 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:54,894 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration3_Loop [2024-10-13 16:55:54,894 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:54,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:54,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:54,953 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:54,953 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:55:54,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,956 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) [2024-10-13 16:55:54,957 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 [2024-10-13 16:55:54,958 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 [2024-10-13 16:55:54,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:54,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:54,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:54,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:54,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:54,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:54,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:54,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:55:54,977 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:55:54,978 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:55:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:54,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:54,980 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) [2024-10-13 16:55:54,982 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 [2024-10-13 16:55:54,983 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:55:54,983 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:55:54,983 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:55:54,983 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 [] [2024-10-13 16:55:54,995 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 [2024-10-13 16:55:54,996 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:55:55,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,039 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:55,052 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 [2024-10-13 16:55:55,052 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2024-10-13 16:55:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-13 16:55:55,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:55:55,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,067 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:55:55,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,103 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:55,116 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 [2024-10-13 16:55:55,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2024-10-13 16:55:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:55,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-13 16:55:55,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:55:55,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,137 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:55:55,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,180 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:55,192 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 [2024-10-13 16:55:55,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,206 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2024-10-13 16:55:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-13 16:55:55,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:55:55,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-13 16:55:55,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-13 16:55:55,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-10-13 16:55:55,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-13 16:55:55,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2024-10-13 16:55:55,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-13 16:55:55,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-13 16:55:55,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2024-10-13 16:55:55,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:55:55,210 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-13 16:55:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2024-10-13 16:55:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-10-13 16:55:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-10-13 16:55:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-10-13 16:55:55,214 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-13 16:55:55,214 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-13 16:55:55,214 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 16:55:55,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-10-13 16:55:55,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-13 16:55:55,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:55:55,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:55:55,217 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-10-13 16:55:55,217 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:55:55,217 INFO L745 eck$LassoCheckResult]: Stem: 274#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 275#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_~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; 277#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 271#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 273#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 276#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 270#L21-2 [2024-10-13 16:55:55,217 INFO L747 eck$LassoCheckResult]: Loop: 270#L21-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 268#L21 assume main_~y~0#1 < 0;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 270#L21-2 [2024-10-13 16:55:55,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 3 times [2024-10-13 16:55:55,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:55,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109560529] [2024-10-13 16:55:55,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:55,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:55,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2024-10-13 16:55:55,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213855405] [2024-10-13 16:55:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:55,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash 295744364, now seen corresponding path program 4 times [2024-10-13 16:55:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:55:55,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170833282] [2024-10-13 16:55:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:55:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:55:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:55:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:55:55,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:55:55,288 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:55,288 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:55,288 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:55,289 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:55,289 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:55:55,289 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,289 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:55,289 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:55,289 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2024-10-13 16:55:55,289 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:55,289 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:55,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,350 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:55,351 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:55:55,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,353 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) [2024-10-13 16:55:55,355 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 [2024-10-13 16:55:55,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:55,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,374 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:55,374 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: [] [2024-10-13 16:55:55,389 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 [2024-10-13 16:55:55,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,392 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) [2024-10-13 16:55:55,393 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 [2024-10-13 16:55:55,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:55,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,417 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:55,417 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:55:55,427 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 [2024-10-13 16:55:55,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,429 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) [2024-10-13 16:55:55,430 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 [2024-10-13 16:55:55,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:55,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,449 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:55,449 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:55:55,459 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 [2024-10-13 16:55:55,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,461 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) [2024-10-13 16:55:55,462 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 [2024-10-13 16:55:55,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:55,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,473 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:55:55,474 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:55:55,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-13 16:55:55,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,487 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) [2024-10-13 16:55:55,488 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 [2024-10-13 16:55:55,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:55:55,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,518 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 [2024-10-13 16:55:55,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,520 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) [2024-10-13 16:55:55,521 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 [2024-10-13 16:55:55,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:55:55,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:55:55,554 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:55:55,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-13 16:55:55,560 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:55:55,560 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:55:55,560 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:55:55,560 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:55:55,560 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:55:55,560 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,561 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:55:55,561 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:55:55,561 INFO L132 ssoRankerPreferences]: Filename of dumped script: Nyala-2lex-2.c_Iteration4_Loop [2024-10-13 16:55:55,561 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:55:55,561 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:55:55,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:55:55,621 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:55:55,622 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:55:55,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,623 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) [2024-10-13 16:55:55,624 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 [2024-10-13 16:55:55,625 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 [2024-10-13 16:55:55,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:55,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:55,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:55,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:55,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:55,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:55,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:55,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:55,650 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 [2024-10-13 16:55:55,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,652 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) [2024-10-13 16:55:55,652 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 [2024-10-13 16:55:55,653 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 [2024-10-13 16:55:55,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:55,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:55,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:55,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:55,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:55:55,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:55:55,669 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:55,684 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 [2024-10-13 16:55:55,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,686 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) [2024-10-13 16:55:55,687 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 [2024-10-13 16:55:55,688 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 [2024-10-13 16:55:55,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:55,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:55,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:55,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:55,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:55:55,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:55:55,708 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:55,722 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 [2024-10-13 16:55:55,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,724 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) [2024-10-13 16:55:55,726 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 [2024-10-13 16:55:55,726 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 [2024-10-13 16:55:55,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:55,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:55,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:55,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:55,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:55,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:55,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:55,742 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:55:55,756 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 [2024-10-13 16:55:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,759 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) [2024-10-13 16:55:55,761 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 [2024-10-13 16:55:55,761 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 [2024-10-13 16:55:55,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:55:55,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:55:55,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:55:55,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:55:55,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:55:55,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:55:55,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:55:55,775 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:55:55,777 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:55:55,778 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:55:55,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:55:55,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:55:55,779 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) [2024-10-13 16:55:55,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:55:55,781 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:55:55,781 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:55:55,781 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-10-13 16:55:55,786 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 [2024-10-13 16:55:55,794 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 [2024-10-13 16:55:55,795 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:55:55,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:55:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:55:55,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:55:55,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:55:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:55:55,854 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 [2024-10-13 16:55:55,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2024-10-13 16:55:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:55:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:55:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-13 16:55:55,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:55:55,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-13 16:55:55,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-13 16:55:55,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:55:55,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-10-13 16:55:55,875 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:55:55,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:55:55,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:55:55,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:55:55,875 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 16:55:55,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 16:55:55,875 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:55:55,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 16:55:55,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:55:55 BoogieIcfgContainer [2024-10-13 16:55:55,883 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:55:55,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:55:55,884 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:55:55,884 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:55:55,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:55:52" (3/4) ... [2024-10-13 16:55:55,886 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 16:55:55,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:55:55,888 INFO L158 Benchmark]: Toolchain (without parser) took 3414.59ms. Allocated memory is still 186.6MB. Free memory was 122.1MB in the beginning and 99.0MB in the end (delta: 23.1MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-10-13 16:55:55,888 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 104.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:55:55,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.94ms. Allocated memory is still 186.6MB. Free memory was 122.1MB in the beginning and 111.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:55:55,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.71ms. Allocated memory is still 186.6MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:55:55,889 INFO L158 Benchmark]: Boogie Preprocessor took 20.19ms. Allocated memory is still 186.6MB. Free memory was 109.7MB in the beginning and 108.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:55:55,892 INFO L158 Benchmark]: RCFGBuilder took 191.67ms. Allocated memory is still 186.6MB. Free memory was 108.3MB in the beginning and 99.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:55:55,893 INFO L158 Benchmark]: BuchiAutomizer took 2952.49ms. Allocated memory is still 186.6MB. Free memory was 99.2MB in the beginning and 100.0MB in the end (delta: -808.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:55:55,893 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 186.6MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:55:55,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 104.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.94ms. Allocated memory is still 186.6MB. Free memory was 122.1MB in the beginning and 111.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.71ms. Allocated memory is still 186.6MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.19ms. Allocated memory is still 186.6MB. Free memory was 109.7MB in the beginning and 108.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.67ms. Allocated memory is still 186.6MB. Free memory was 108.3MB in the beginning and 99.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2952.49ms. Allocated memory is still 186.6MB. Free memory was 99.2MB in the beginning and 100.0MB in the end (delta: -808.7kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 186.6MB. Free memory is still 99.0MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 28 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 16:55:55,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-13 16:55:56,111 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 [2024-10-13 16:55:56,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE