./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Mysore-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:31:51,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:31:51,078 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-10 22:31:51,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:31:51,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:31:51,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:31:51,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:31:51,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:31:51,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:31:51,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:31:51,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:31:51,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:31:51,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:31:51,116 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:31:51,116 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:31:51,116 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:31:51,117 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:31:51,117 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:31:51,117 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:31:51,117 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:31:51,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:31:51,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:31:51,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:31:51,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:31:51,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:31:51,121 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:31:51,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:31:51,122 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:31:51,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:31:51,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:31:51,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:31:51,123 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:31:51,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 [2024-11-10 22:31:51,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:31:51,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:31:51,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:31:51,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:31:51,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:31:51,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-2.c [2024-11-10 22:31:52,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:31:52,895 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:31:52,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-2.c [2024-11-10 22:31:52,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc88a79cc/12ede25e429341379c1604cdd6aa1fe3/FLAG04a289278 [2024-11-10 22:31:52,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc88a79cc/12ede25e429341379c1604cdd6aa1fe3 [2024-11-10 22:31:52,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:31:52,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:31:52,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:52,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:31:52,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:31:52,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:52" (1/1) ... [2024-11-10 22:31:52,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104b70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:52, skipping insertion in model container [2024-11-10 22:31:52,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:52" (1/1) ... [2024-11-10 22:31:52,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:31:53,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:53,069 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:31:53,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:53,090 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:31:53,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53 WrapperNode [2024-11-10 22:31:53,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:53,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:53,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:31:53,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:31:53,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,112 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-10 22:31:53,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:53,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:31:53,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:31:53,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:31:53,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,154 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 22:31:53,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:31:53,163 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:31:53,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:31:53,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:31:53,164 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (1/1) ... [2024-11-10 22:31:53,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:53,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:53,199 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) [2024-11-10 22:31:53,209 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 [2024-11-10 22:31:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:31:53,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:31:53,314 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:31:53,316 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:31:53,388 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-10 22:31:53,389 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:31:53,405 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:31:53,407 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:31:53,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:53 BoogieIcfgContainer [2024-11-10 22:31:53,407 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:31:53,408 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:31:53,409 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:31:53,412 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:31:53,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:53,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:31:52" (1/3) ... [2024-11-10 22:31:53,414 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78256a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:53, skipping insertion in model container [2024-11-10 22:31:53,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:53,414 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:53" (2/3) ... [2024-11-10 22:31:53,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78256a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:53, skipping insertion in model container [2024-11-10 22:31:53,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:53,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:53" (3/3) ... [2024-11-10 22:31:53,417 INFO L332 chiAutomizerObserver]: Analyzing ICFG Mysore-2.c [2024-11-10 22:31:53,476 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:31:53,477 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:31:53,477 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:31:53,479 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:31:53,479 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:31:53,479 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:31:53,480 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:31:53,481 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:31:53,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:53,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 22:31:53,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:53,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:53,504 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-10 22:31:53,504 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-10 22:31:53,505 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:31:53,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:53,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-10 22:31:53,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:53,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:53,507 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-10 22:31:53,507 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-10 22:31:53,513 INFO L745 eck$LassoCheckResult]: Stem: 4#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_~x~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~c~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L19-1true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 9#L20-1true assume !!(-65535 <= main_~c~0#1 && main_~c~0#1 <= 65535); 7#L21true assume main_~c~0#1 >= 2; 3#L22true [2024-11-10 22:31:53,514 INFO L747 eck$LassoCheckResult]: Loop: 3#L22true assume true; 5#L22-1true assume !!(main_~x~0#1 + main_~c~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3#L22true [2024-11-10 22:31:53,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash 45774764, now seen corresponding path program 1 times [2024-11-10 22:31:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497499531] [2024-11-10 22:31:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:53,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:53,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2024-11-10 22:31:53,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:53,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546123960] [2024-11-10 22:31:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:53,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:53,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1039875467, now seen corresponding path program 1 times [2024-11-10 22:31:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116875140] [2024-11-10 22:31:53,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:53,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:53,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:53,697 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:53,697 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:53,698 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:53,698 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:53,698 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:53,698 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:53,698 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:53,698 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:53,698 INFO L132 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2024-11-10 22:31:53,699 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:53,699 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:53,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:53,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:53,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:53,788 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:53,790 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:53,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:53,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:53,795 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) [2024-11-10 22:31:53,797 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 [2024-11-10 22:31:53,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:53,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:53,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-10 22:31:53,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:53,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:53,827 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) [2024-11-10 22:31:53,829 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 [2024-11-10 22:31:53,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:53,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:53,933 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:53,939 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 [2024-11-10 22:31:53,939 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:53,939 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:53,940 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:53,940 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:53,940 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:53,940 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:53,940 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:53,940 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:53,940 INFO L132 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2024-11-10 22:31:53,940 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:53,941 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:53,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:53,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:53,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:54,046 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:54,054 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:54,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:54,061 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) [2024-11-10 22:31:54,062 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 [2024-11-10 22:31:54,064 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 [2024-11-10 22:31:54,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:54,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:54,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:54,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:54,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:54,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:54,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:54,081 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:54,095 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 [2024-11-10 22:31:54,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:54,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:54,097 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) [2024-11-10 22:31:54,099 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 [2024-11-10 22:31:54,099 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 [2024-11-10 22:31:54,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:54,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:54,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:54,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:54,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-10 22:31:54,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-10 22:31:54,117 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:54,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-10 22:31:54,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:54,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:54,131 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) [2024-11-10 22:31:54,132 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 [2024-11-10 22:31:54,133 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 [2024-11-10 22:31:54,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:54,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:54,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:54,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:54,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-10 22:31:54,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-10 22:31:54,151 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:54,163 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 [2024-11-10 22:31:54,163 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-10 22:31:54,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:54,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:54,165 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) [2024-11-10 22:31:54,167 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 [2024-11-10 22:31:54,168 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 [2024-11-10 22:31:54,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:54,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:54,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:54,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:54,180 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-10 22:31:54,182 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-10 22:31:54,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:54,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:54,194 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-10 22:31:54,194 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:31:54,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:54,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:54,197 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) [2024-11-10 22:31:54,198 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 [2024-11-10 22:31:54,199 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:54,199 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:54,200 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:54,200 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~c~0#1 + 3 f1 = 2*ULTIMATE.start_main_~x~0#1 + 2*ULTIMATE.start_main_~c~0#1 + 1 Supporting invariants [] [2024-11-10 22:31:54,211 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 [2024-11-10 22:31:54,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:54,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-10 22:31:54,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-10 22:31:54,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:54,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:54,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:54,268 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 22:31:54,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:54,349 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 [2024-11-10 22:31:54,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:54,380 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 25 transitions. Complement of second has 6 states. [2024-11-10 22:31:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-10 22:31:54,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-10 22:31:54,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:54,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-10 22:31:54,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:54,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-10 22:31:54,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:54,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2024-11-10 22:31:54,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:54,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-11-10 22:31:54,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 22:31:54,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 22:31:54,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 22:31:54,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:31:54,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:54,394 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:54,394 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:54,394 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 22:31:54,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 22:31:54,394 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:54,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 22:31:54,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:31:54 BoogieIcfgContainer [2024-11-10 22:31:54,400 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:31:54,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:31:54,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:31:54,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:31:54,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:53" (3/4) ... [2024-11-10 22:31:54,404 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 22:31:54,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:31:54,405 INFO L158 Benchmark]: Toolchain (without parser) took 1489.60ms. Allocated memory was 148.9MB in the beginning and 234.9MB in the end (delta: 86.0MB). Free memory was 78.5MB in the beginning and 138.4MB in the end (delta: -60.0MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-10 22:31:54,406 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:54,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.29ms. Allocated memory is still 148.9MB. Free memory was 78.3MB in the beginning and 66.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:31:54,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.59ms. Allocated memory is still 148.9MB. Free memory was 66.9MB in the beginning and 65.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:54,407 INFO L158 Benchmark]: Boogie Preprocessor took 48.48ms. Allocated memory is still 148.9MB. Free memory was 65.7MB in the beginning and 119.4MB in the end (delta: -53.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-10 22:31:54,407 INFO L158 Benchmark]: IcfgBuilder took 244.85ms. Allocated memory was 148.9MB in the beginning and 234.9MB in the end (delta: 86.0MB). Free memory was 119.3MB in the beginning and 198.2MB in the end (delta: -78.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-10 22:31:54,408 INFO L158 Benchmark]: BuchiAutomizer took 991.97ms. Allocated memory is still 234.9MB. Free memory was 198.2MB in the beginning and 139.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-10 22:31:54,408 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 234.9MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:54,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.29ms. Allocated memory is still 148.9MB. Free memory was 78.3MB in the beginning and 66.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.59ms. Allocated memory is still 148.9MB. Free memory was 66.9MB in the beginning and 65.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.48ms. Allocated memory is still 148.9MB. Free memory was 65.7MB in the beginning and 119.4MB in the end (delta: -53.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * IcfgBuilder took 244.85ms. Allocated memory was 148.9MB in the beginning and 234.9MB in the end (delta: 86.0MB). Free memory was 119.3MB in the beginning and 198.2MB in the end (delta: -78.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 991.97ms. Allocated memory is still 234.9MB. Free memory was 198.2MB in the beginning and 139.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 234.9MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 22:31:54,429 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 [2024-11-10 22:31:54,632 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