./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/c.08.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 e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:04:40,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:04:40,238 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:04:40,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:04:40,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:04:40,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:04:40,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:04:40,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:04:40,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:04:40,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:04:40,271 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:04:40,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:04:40,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:04:40,272 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:04:40,273 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:04:40,276 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:04:40,276 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:04:40,277 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:04:40,277 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:04:40,277 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:04:40,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:04:40,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:04:40,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:04:40,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:04:40,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:04:40,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:04:40,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:04:40,280 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:04:40,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:04:40,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:04:40,281 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:04:40,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:04:40,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:04:40,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:04:40,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:04:40,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:04:40,282 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:04:40,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 [2024-11-17 08:04:40,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:04:40,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:04:40,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:04:40,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:04:40,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:04:40,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-17 08:04:41,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:04:41,806 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:04:41,807 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-17 08:04:41,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76c4e689/5ee18f2311ce49e6a37beb3cb167cbaa/FLAGa148d3bff [2024-11-17 08:04:41,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76c4e689/5ee18f2311ce49e6a37beb3cb167cbaa [2024-11-17 08:04:41,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:04:41,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:04:41,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:04:41,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:04:41,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:04:41,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:41" (1/1) ... [2024-11-17 08:04:41,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3929624d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:41, skipping insertion in model container [2024-11-17 08:04:41,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:04:41" (1/1) ... [2024-11-17 08:04:41,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:04:41,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:04:41,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:04:41,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:04:42,003 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:04:42,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42 WrapperNode [2024-11-17 08:04:42,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:04:42,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:04:42,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:04:42,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:04:42,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,023 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-17 08:04:42,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:04:42,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:04:42,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:04:42,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:04:42,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,035 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:04:42,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:04:42,038 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:04:42,039 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:04:42,039 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:04:42,039 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (1/1) ... [2024-11-17 08:04:42,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:04:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:04:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:04:42,169 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:04:42,171 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:04:42,210 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-17 08:04:42,210 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:04:42,221 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:04:42,221 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:04:42,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:42 BoogieIcfgContainer [2024-11-17 08:04:42,221 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:04:42,222 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:04:42,232 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:04:42,236 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:04:42,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:42,237 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:04:41" (1/3) ... [2024-11-17 08:04:42,238 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30580dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:04:42, skipping insertion in model container [2024-11-17 08:04:42,238 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:42,238 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:04:42" (2/3) ... [2024-11-17 08:04:42,241 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30580dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:04:42, skipping insertion in model container [2024-11-17 08:04:42,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:04:42,241 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:42" (3/3) ... [2024-11-17 08:04:42,243 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.08.c [2024-11-17 08:04:42,289 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:04:42,289 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:04:42,290 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:04:42,290 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:04:42,290 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:04:42,290 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:04:42,290 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:04:42,290 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:04:42,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:42,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:04:42,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:42,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:42,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:04:42,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:42,307 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:04:42,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:42,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:04:42,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:42,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:42,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:04:42,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:04:42,314 INFO L745 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 7#L10true [2024-11-17 08:04:42,314 INFO L747 eck$LassoCheckResult]: Loop: 7#L10true assume true; 9#L10-1true assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 11#L12true assume !true; 8#L15true main_~i~0#1 := main_~i~0#1 - 1; 7#L10true [2024-11-17 08:04:42,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1504, now seen corresponding path program 1 times [2024-11-17 08:04:42,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:42,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784000950] [2024-11-17 08:04:42,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:42,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:42,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:42,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1353370, now seen corresponding path program 1 times [2024-11-17 08:04:42,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:42,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979600153] [2024-11-17 08:04:42,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:42,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:04:42,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979600153] [2024-11-17 08:04:42,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979600153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:04:42,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:04:42,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:04:42,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695006920] [2024-11-17 08:04:42,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:04:42,434 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:04:42,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:04:42,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 08:04:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 08:04:42,461 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2024-11-17 08:04:42,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:04:42,465 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-11-17 08:04:42,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2024-11-17 08:04:42,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:04:42,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2024-11-17 08:04:42,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-17 08:04:42,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-17 08:04:42,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2024-11-17 08:04:42,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:04:42,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-11-17 08:04:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2024-11-17 08:04:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-17 08:04:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2024-11-17 08:04:42,487 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-11-17 08:04:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 08:04:42,491 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-11-17 08:04:42,491 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:04:42,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2024-11-17 08:04:42,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:04:42,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:42,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:42,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:04:42,492 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:04:42,492 INFO L745 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 34#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 35#L10 [2024-11-17 08:04:42,492 INFO L747 eck$LassoCheckResult]: Loop: 35#L10 assume true; 36#L10-1 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 32#L12 assume true; 30#L12-1 assume !(main_~j~0#1 <= main_~i~0#1 - 1); 31#L15 main_~i~0#1 := main_~i~0#1 - 1; 35#L10 [2024-11-17 08:04:42,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:42,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1504, now seen corresponding path program 2 times [2024-11-17 08:04:42,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:42,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744800477] [2024-11-17 08:04:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:42,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:42,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash 41953574, now seen corresponding path program 1 times [2024-11-17 08:04:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:42,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901820936] [2024-11-17 08:04:42,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:42,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:42,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash 121894567, now seen corresponding path program 1 times [2024-11-17 08:04:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:42,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434694938] [2024-11-17 08:04:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:42,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:42,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:42,581 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:42,581 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:42,581 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:42,581 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:42,582 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:42,582 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,582 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:42,582 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:42,582 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2024-11-17 08:04:42,582 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:42,582 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:42,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,684 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:42,685 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:42,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:04:42,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:42,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:42,716 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:42,716 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:42,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:42,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:04:42,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:42,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:42,754 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:42,755 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:42,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-17 08:04:42,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:04:42,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:42,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:42,782 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:42,782 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:42,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-17 08:04:42,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:04:42,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:42,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:42,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:42,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:04:42,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:42,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:42,840 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:42,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-17 08:04:42,851 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:42,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:42,851 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:42,851 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:42,851 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:42,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,852 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:42,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:42,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2024-11-17 08:04:42,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:42,852 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:42,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:42,912 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:42,916 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:42,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:04:42,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:42,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:42,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:42,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:42,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:42,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:42,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:42,941 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:42,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:42,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:04:42,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:42,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:42,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:42,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:42,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:42,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:42,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:42,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:42,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:42,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:42,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:42,985 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:42,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-17 08:04:42,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:42,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:42,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:42,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:42,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:42,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:42,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:42,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:43,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:43,002 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:43,002 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:43,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-17 08:04:43,030 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:43,031 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:43,031 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:43,031 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-17 08:04:43,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:43,045 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:43,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:43,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:43,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:43,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:43,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:43,120 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-17 08:04:43,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:43,149 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 [2024-11-17 08:04:43,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 6 states. [2024-11-17 08:04:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:04:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-17 08:04:43,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-17 08:04:43,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-17 08:04:43,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-17 08:04:43,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2024-11-17 08:04:43,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:04:43,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2024-11-17 08:04:43,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-17 08:04:43,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-17 08:04:43,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-17 08:04:43,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:43,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-17 08:04:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-17 08:04:43,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-17 08:04:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-17 08:04:43,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-17 08:04:43,196 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-17 08:04:43,196 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:04:43,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-17 08:04:43,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:04:43,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:43,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:43,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:04:43,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:04:43,197 INFO L745 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 98#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 99#L10 assume true; 101#L10-1 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 93#L12 [2024-11-17 08:04:43,197 INFO L747 eck$LassoCheckResult]: Loop: 93#L12 assume true; 92#L12-1 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 93#L12 [2024-11-17 08:04:43,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1445791, now seen corresponding path program 1 times [2024-11-17 08:04:43,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:43,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513114670] [2024-11-17 08:04:43,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:43,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 1 times [2024-11-17 08:04:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:43,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326604729] [2024-11-17 08:04:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:43,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1389405406, now seen corresponding path program 1 times [2024-11-17 08:04:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706921671] [2024-11-17 08:04:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:43,232 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:43,232 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:43,232 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:43,232 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:43,232 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:43,233 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,233 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:43,233 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:43,233 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2024-11-17 08:04:43,233 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:43,233 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:43,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,276 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:43,277 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:43,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,279 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-17 08:04:43,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:43,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,302 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:43,303 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:43,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:43,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,315 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:04:43,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:43,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,337 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:43,337 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:43,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:43,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:04:43,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:43,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:04:43,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-17 08:04:43,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:43,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,476 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:43,480 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 [2024-11-17 08:04:43,480 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:43,480 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:43,480 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:43,480 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:43,480 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:43,480 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,480 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:43,481 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:43,481 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2024-11-17 08:04:43,481 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:43,481 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:43,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,522 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:43,523 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:43,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,525 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-17 08:04:43,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:43,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:43,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:43,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:43,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:43,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:43,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:43,550 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:43,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-17 08:04:43,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,565 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-17 08:04:43,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:43,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:43,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:43,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:43,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:43,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:43,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:43,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:43,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:43,588 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-17 08:04:43,588 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:04:43,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,590 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-17 08:04:43,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:43,592 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:43,592 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:43,592 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-17 08:04:43,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:43,603 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:43,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:43,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:43,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:43,634 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:43,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:43,636 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:04:43,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 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) [2024-11-17 08:04:43,645 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. 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 20 states and 25 transitions. Complement of second has 5 states. [2024-11-17 08:04:43,646 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 [2024-11-17 08:04:43,647 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) [2024-11-17 08:04:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-17 08:04:43,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-17 08:04:43,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-17 08:04:43,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-17 08:04:43,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:43,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2024-11-17 08:04:43,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:04:43,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 18 transitions. [2024-11-17 08:04:43,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-17 08:04:43,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-17 08:04:43,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2024-11-17 08:04:43,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:04:43,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-17 08:04:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2024-11-17 08:04:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-17 08:04:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:43,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-17 08:04:43,649 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-17 08:04:43,649 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-17 08:04:43,649 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:04:43,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2024-11-17 08:04:43,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:04:43,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:04:43,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:04:43,652 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-17 08:04:43,652 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:04:43,652 INFO L745 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 165#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 166#L10 assume true; 167#L10-1 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 163#L12 assume true; 174#L12-1 assume !(main_~j~0#1 <= main_~i~0#1 - 1); 171#L15 main_~i~0#1 := main_~i~0#1 - 1; 168#L10 assume true; 170#L10-1 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 161#L12 [2024-11-17 08:04:43,652 INFO L747 eck$LassoCheckResult]: Loop: 161#L12 assume true; 160#L12-1 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 161#L12 [2024-11-17 08:04:43,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1176562342, now seen corresponding path program 2 times [2024-11-17 08:04:43,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:43,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374032062] [2024-11-17 08:04:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:43,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:04:43,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374032062] [2024-11-17 08:04:43,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374032062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:04:43,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:04:43,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:04:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378421586] [2024-11-17 08:04:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:04:43,724 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:04:43,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 2 times [2024-11-17 08:04:43,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:04:43,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723069865] [2024-11-17 08:04:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:04:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:04:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:04:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:04:43,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:04:43,746 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:43,746 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:43,746 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:43,746 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:43,746 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:04:43,746 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,746 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:43,746 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:43,746 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration4_Loop [2024-11-17 08:04:43,746 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:43,747 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:43,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,783 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:43,783 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:04:43,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:04:43,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:43,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,806 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:04:43,806 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:04:43,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-17 08:04:43,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,818 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:04:43,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:04:43,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-17 08:04:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,843 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:04:43,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:04:43,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:04:43,945 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:04:43,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-17 08:04:43,950 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:04:43,950 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:04:43,950 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:04:43,950 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:04:43,950 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:04:43,950 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,950 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:04:43,950 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:04:43,950 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration4_Loop [2024-11-17 08:04:43,950 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:04:43,950 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:04:43,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:04:43,983 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:04:43,983 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:04:43,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:43,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:43,985 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:43,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-17 08:04:43,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:43,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:43,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:43,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:43,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:43,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:04:43,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:04:44,001 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:04:44,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-17 08:04:44,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:44,016 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:44,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-17 08:04:44,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:04:44,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:04:44,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:04:44,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:04:44,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:04:44,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:04:44,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:04:44,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:04:44,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:04:44,033 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:04:44,033 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:04:44,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:04:44,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:04:44,034 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:04:44,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-17 08:04:44,036 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:04:44,036 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:04:44,036 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:04:44,036 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-17 08:04:44,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:44,048 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:04:44,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,075 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:44,078 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:04:44,078 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,083 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 20 transitions. Complement of second has 5 states. [2024-11-17 08:04:44,083 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 [2024-11-17 08:04:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-17 08:04:44,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-17 08:04:44,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:44,084 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:44,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,114 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:44,120 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:04:44,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,128 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 20 transitions. Complement of second has 5 states. [2024-11-17 08:04:44,129 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 [2024-11-17 08:04:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-17 08:04:44,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-17 08:04:44,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:44,130 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:04:44,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:04:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:04:44,163 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:04:44,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:04:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:04:44,165 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 1 loop predicates [2024-11-17 08:04:44,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 24 transitions. Complement of second has 4 states. [2024-11-17 08:04:44,174 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 [2024-11-17 08:04:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:04:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-17 08:04:44,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-17 08:04:44,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:44,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-17 08:04:44,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:44,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-17 08:04:44,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:04:44,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2024-11-17 08:04:44,178 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:04:44,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2024-11-17 08:04:44,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:04:44,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:04:44,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:04:44,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:04:44,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:04:44,178 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:04:44,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:04:44,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:04:44,179 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2024-11-17 08:04:44,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:04:44,179 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:04:44,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:04:44,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:04:44,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:04:44,179 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:04:44,179 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:04:44,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 08:04:44,180 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:04:44,180 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:04:44,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:04:44,180 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:04:44,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:04:44,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:04:44 BoogieIcfgContainer [2024-11-17 08:04:44,185 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:04:44,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:04:44,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:04:44,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:04:44,186 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:04:42" (3/4) ... [2024-11-17 08:04:44,187 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:04:44,188 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:04:44,189 INFO L158 Benchmark]: Toolchain (without parser) took 2358.20ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 72.5MB in the beginning and 91.9MB in the end (delta: -19.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:44,189 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.6MB in the end (delta: 283.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:04:44,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.18ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 61.2MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:04:44,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.36ms. Allocated memory is still 142.6MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:04:44,190 INFO L158 Benchmark]: Boogie Preprocessor took 13.77ms. Allocated memory is still 142.6MB. Free memory was 59.8MB in the beginning and 58.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:04:44,190 INFO L158 Benchmark]: IcfgBuilder took 183.10ms. Allocated memory is still 142.6MB. Free memory was 58.4MB in the beginning and 49.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-17 08:04:44,190 INFO L158 Benchmark]: BuchiAutomizer took 1962.95ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 49.0MB in the beginning and 91.9MB in the end (delta: -42.9MB). Peak memory consumption was 77.5kB. Max. memory is 16.1GB. [2024-11-17 08:04:44,190 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 184.5MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:04:44,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.6MB in the end (delta: 283.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.18ms. Allocated memory is still 142.6MB. Free memory was 72.1MB in the beginning and 61.2MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.36ms. Allocated memory is still 142.6MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.77ms. Allocated memory is still 142.6MB. Free memory was 59.8MB in the beginning and 58.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 183.10ms. Allocated memory is still 142.6MB. Free memory was 58.4MB in the beginning and 49.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1962.95ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 49.0MB in the beginning and 91.9MB in the end (delta: -42.9MB). Peak memory consumption was 77.5kB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 184.5MB. Free memory is still 91.9MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * i) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + i) and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -1 * j) + i) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 40 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:04:44,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:44,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-17 08:04:44,614 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