./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/not-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f 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-bwb/not-01.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 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:51:24,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:51:24,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:51:24,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:51:24,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:51:24,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:51:24,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:51:24,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:51:24,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:51:24,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:51:24,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:51:24,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:51:24,732 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:51:24,734 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:51:24,734 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:51:24,734 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:51:24,735 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:51:24,735 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:51:24,735 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:51:24,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:51:24,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:51:24,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:51:24,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:51:24,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:51:24,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:51:24,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:51:24,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:51:24,741 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:51:24,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:51:24,741 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:51:24,741 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:51:24,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:51:24,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:51:24,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:51:24,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:51:24,742 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:51:24,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 [2024-11-12 20:51:24,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:51:24,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:51:24,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:51:24,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:51:24,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:51:24,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/not-01.c [2024-11-12 20:51:26,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:51:26,395 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:51:26,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/not-01.c [2024-11-12 20:51:26,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1203370/cb320e00ef404181b3a09753f5cd3b28/FLAG01f0579b5 [2024-11-12 20:51:26,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1203370/cb320e00ef404181b3a09753f5cd3b28 [2024-11-12 20:51:26,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:51:26,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:51:26,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:51:26,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:51:26,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:51:26,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:26,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4186103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26, skipping insertion in model container [2024-11-12 20:51:26,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:26,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:51:26,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:51:26,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:51:26,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:51:26,995 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:51:26,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26 WrapperNode [2024-11-12 20:51:26,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:51:26,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:51:26,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:51:26,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:51:27,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,018 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-12 20:51:27,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:51:27,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:51:27,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:51:27,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:51:27,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,032 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:51:27,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:51:27,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:51:27,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:51:27,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:51:27,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (1/1) ... [2024-11-12 20:51:27,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,065 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) [2024-11-12 20:51:27,070 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 [2024-11-12 20:51:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:51:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:51:27,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:51:27,150 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:51:27,201 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-12 20:51:27,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:51:27,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:51:27,215 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:51:27,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:27 BoogieIcfgContainer [2024-11-12 20:51:27,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:51:27,216 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:51:27,216 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:51:27,219 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:51:27,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:27,220 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:51:26" (1/3) ... [2024-11-12 20:51:27,221 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282a7096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:51:27, skipping insertion in model container [2024-11-12 20:51:27,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:27,221 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:26" (2/3) ... [2024-11-12 20:51:27,221 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282a7096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:51:27, skipping insertion in model container [2024-11-12 20:51:27,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:27,222 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:27" (3/3) ... [2024-11-12 20:51:27,223 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-01.c [2024-11-12 20:51:27,265 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:51:27,265 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:51:27,265 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:51:27,265 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:51:27,265 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:51:27,265 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:51:27,265 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:51:27,266 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:51:27,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:51:27,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-12 20:51:27,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:51:27,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:51:27,284 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:51:27,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-12 20:51:27,285 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:51:27,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:51:27,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-12 20:51:27,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:51:27,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:51:27,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:51:27,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-12 20:51:27,292 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } 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_~a~0#1, main_~x~0#1;havoc main_~a~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_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-12 20:51:27,292 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~x~0#1 > 0);main_~a~0#1 := -1 - main_~a~0#1;" "assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1;" [2024-11-12 20:51:27,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:51:27,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:51:27,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275151245] [2024-11-12 20:51:27,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:51:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:51:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,358 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:51:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:51:27,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:27,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-12 20:51:27,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:51:27,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844359652] [2024-11-12 20:51:27,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:51:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:51:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,412 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:51:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:51:27,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-12 20:51:27,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:51:27,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69119676] [2024-11-12 20:51:27,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:51:27,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:51:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,441 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:51:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:27,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:51:27,520 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:51:27,521 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:51:27,521 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:51:27,521 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:51:27,521 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:51:27,521 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,521 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:51:27,521 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:51:27,521 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2024-11-12 20:51:27,522 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:51:27,522 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:51:27,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:51:27,597 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:51:27,597 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:51:27,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,600 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) [2024-11-12 20:51:27,601 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 [2024-11-12 20:51:27,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:51:27,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:51:27,629 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 [2024-11-12 20:51:27,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,631 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) [2024-11-12 20:51:27,633 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 [2024-11-12 20:51:27,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:51:27,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:51:27,722 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:51:27,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-12 20:51:27,727 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:51:27,727 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:51:27,727 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:51:27,727 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:51:27,728 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:51:27,728 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,728 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:51:27,728 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:51:27,728 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2024-11-12 20:51:27,728 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:51:27,728 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:51:27,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:51:27,774 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:51:27,777 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:51:27,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,781 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) [2024-11-12 20:51:27,782 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 [2024-11-12 20:51:27,783 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 [2024-11-12 20:51:27,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:51:27,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:51:27,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:51:27,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:51:27,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:51:27,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:51:27,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:51:27,802 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:51:27,814 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 [2024-11-12 20:51:27,815 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-12 20:51:27,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,817 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) [2024-11-12 20:51:27,818 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 [2024-11-12 20:51:27,819 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 [2024-11-12 20:51:27,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:51:27,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:51:27,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:51:27,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:51:27,831 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-12 20:51:27,833 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-12 20:51:27,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:51:27,836 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:51:27,842 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:51:27,843 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:51:27,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:27,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:27,846 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) [2024-11-12 20:51:27,848 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 [2024-11-12 20:51:27,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:51:27,849 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:51:27,849 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:51:27,850 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~a~0#1 + 4*ULTIMATE.start_main_~x~0#1 f1 = 2*ULTIMATE.start_main_~a~0#1 + 3 Supporting invariants [] [2024-11-12 20:51:27,861 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 [2024-11-12 20:51:27,866 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:51:27,873 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-12 20:51:27,874 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-12 20:51:27,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:51:27,902 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:51:27,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:51:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:51:27,914 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 20:51:27,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:51:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:51:28,103 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 [2024-11-12 20:51:28,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:51:28,136 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 6 states. [2024-11-12 20:51:28,138 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 [2024-11-12 20:51:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:51:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-12 20:51:28,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-12 20:51:28,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:51:28,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-12 20:51:28,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:51:28,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-12 20:51:28,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:51:28,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2024-11-12 20:51:28,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:51:28,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2024-11-12 20:51:28,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 20:51:28,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 20:51:28,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 20:51:28,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:51:28,149 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:51:28,149 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:51:28,149 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:51:28,149 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 20:51:28,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 20:51:28,149 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:51:28,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 20:51:28,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:51:28 BoogieIcfgContainer [2024-11-12 20:51:28,155 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:51:28,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:51:28,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:51:28,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:51:28,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:27" (3/4) ... [2024-11-12 20:51:28,158 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:51:28,159 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:51:28,159 INFO L158 Benchmark]: Toolchain (without parser) took 1336.25ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 100.7MB in the beginning and 119.8MB in the end (delta: -19.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-12 20:51:28,160 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 155.2MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:51:28,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.66ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 89.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 20:51:28,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.48ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 88.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:51:28,161 INFO L158 Benchmark]: Boogie Preprocessor took 18.10ms. Allocated memory is still 155.2MB. Free memory was 88.1MB in the beginning and 86.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:51:28,161 INFO L158 Benchmark]: RCFGBuilder took 177.25ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 78.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 20:51:28,161 INFO L158 Benchmark]: BuchiAutomizer took 938.89ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 119.8MB in the end (delta: -42.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-11-12 20:51:28,162 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 197.1MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:51:28,163 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 155.2MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.66ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 89.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.48ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 88.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.10ms. Allocated memory is still 155.2MB. Free memory was 88.1MB in the beginning and 86.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 177.25ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 78.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 938.89ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 77.6MB in the beginning and 119.8MB in the end (delta: -42.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 197.1MB. Free memory is still 119.8MB. 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 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! [2024-11-12 20:51:28,193 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 [2024-11-12 20:51:28,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE