./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.13.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-restricted-15/b.13.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 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:55:23,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:55:23,890 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:55:23,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:55:23,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:55:23,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:55:23,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:55:23,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:55:23,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:55:23,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:55:23,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:55:23,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:55:23,929 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:55:23,929 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:55:23,929 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:55:23,929 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:55:23,929 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:55:23,929 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:55:23,930 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:55:23,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:55:23,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:55:23,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:55:23,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:55:23,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:55:23,933 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:55:23,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:55:23,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:55:23,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:55:23,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:55:23,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:55:23,934 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:55:23,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a [2024-11-12 20:55:24,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:55:24,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:55:24,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:55:24,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:55:24,157 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:55:24,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.13.c [2024-11-12 20:55:25,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:55:25,502 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:55:25,502 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.13.c [2024-11-12 20:55:25,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d95aae0/f5f264b1a47646ee8d03dcf491e6751b/FLAGf43aa92df [2024-11-12 20:55:25,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d95aae0/f5f264b1a47646ee8d03dcf491e6751b [2024-11-12 20:55:25,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:55:25,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:55:25,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:55:25,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:55:25,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:55:25,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a33210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25, skipping insertion in model container [2024-11-12 20:55:25,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:55:25,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:55:25,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:55:25,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:55:25,694 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:55:25,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25 WrapperNode [2024-11-12 20:55:25,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:55:25,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:55:25,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:55:25,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:55:25,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,717 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-12 20:55:25,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:55:25,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:55:25,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:55:25,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:55:25,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,747 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:55:25,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:55:25,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:55:25,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:55:25,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:55:25,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (1/1) ... [2024-11-12 20:55:25,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:25,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:25,792 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 20:55:25,794 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 20:55:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:55:25,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:55:25,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:55:25,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:55:25,929 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-12 20:55:25,929 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:55:25,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:55:25,937 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:55:25,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:25 BoogieIcfgContainer [2024-11-12 20:55:25,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:55:25,938 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:55:25,938 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:55:25,941 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:55:25,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:25,942 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:55:25" (1/3) ... [2024-11-12 20:55:25,943 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@690294ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:55:25, skipping insertion in model container [2024-11-12 20:55:25,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:25,943 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:25" (2/3) ... [2024-11-12 20:55:25,943 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@690294ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:55:25, skipping insertion in model container [2024-11-12 20:55:25,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:25,944 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:25" (3/3) ... [2024-11-12 20:55:25,945 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.13.c [2024-11-12 20:55:25,990 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:55:25,990 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:55:25,991 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:55:25,991 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:55:25,991 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:55:25,991 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:55:25,991 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:55:25,992 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:55:25,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 20:55:26,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:26,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:26,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:26,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:55:26,012 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-12 20:55:26,012 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:55:26,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 20:55:26,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:26,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:26,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:26,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:55:26,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-12 20:55:26,020 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_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" [2024-11-12 20:55:26,020 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1);" "assume main_~x~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;" [2024-11-12 20:55:26,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:55:26,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645320029] [2024-11-12 20:55:26,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,098 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2024-11-12 20:55:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652425428] [2024-11-12 20:55:26,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,132 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-12 20:55:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723440423] [2024-11-12 20:55:26,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,149 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,210 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:26,211 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:26,211 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:26,211 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:26,211 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:26,211 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,211 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:26,211 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:26,211 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2024-11-12 20:55:26,212 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:26,212 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:26,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,288 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:26,289 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:26,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,292 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 20:55:26,293 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 20:55:26,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:26,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:26,317 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:26,318 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:26,328 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 [2024-11-12 20:55:26,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,331 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 20:55:26,332 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 20:55:26,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:26,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:26,352 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:26,353 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:26,363 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 20:55:26,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,365 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 20:55:26,366 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 20:55:26,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:26,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:26,389 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 20:55:26,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,391 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 20:55:26,392 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 20:55:26,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:26,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:26,506 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:26,510 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 20:55:26,511 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:26,511 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:26,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:26,511 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:26,511 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:26,511 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,511 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:26,512 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:26,512 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2024-11-12 20:55:26,512 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:26,512 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:26,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,573 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:26,577 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:26,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,580 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 20:55:26,586 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 20:55:26,588 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 20:55:26,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:26,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:26,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:26,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:26,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:26,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:26,614 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:26,624 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 20:55:26,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,626 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) [2024-11-12 20:55:26,627 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 [2024-11-12 20:55:26,630 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 20:55:26,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:26,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:26,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:26,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:26,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:26,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:26,650 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:26,663 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 [2024-11-12 20:55:26,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,666 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) [2024-11-12 20:55:26,667 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 [2024-11-12 20:55:26,668 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 20:55:26,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:26,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:26,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:26,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:26,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:26,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:26,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:26,683 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:26,687 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-12 20:55:26,687 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:55:26,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:26,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:26,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-12 20:55:26,713 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:26,713 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:26,713 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:26,713 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-12 20:55:26,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-12 20:55:26,728 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:26,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:26,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:26,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:26,771 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:26,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:26,775 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 20:55:26,797 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 [2024-11-12 20:55:26,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 20:55:26,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 20 states and 29 transitions. Complement of second has 6 states. [2024-11-12 20:55:26,826 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 20:55:26,829 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 20:55:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-11-12 20:55:26,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-12 20:55:26,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:26,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-12 20:55:26,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:26,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-12 20:55:26,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:26,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2024-11-12 20:55:26,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:26,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 16 transitions. [2024-11-12 20:55:26,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-12 20:55:26,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-12 20:55:26,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2024-11-12 20:55:26,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:26,836 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2024-11-12 20:55:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2024-11-12 20:55:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-12 20:55:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 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) [2024-11-12 20:55:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2024-11-12 20:55:26,866 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-11-12 20:55:26,867 INFO L426 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-11-12 20:55:26,867 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 20:55:26,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2024-11-12 20:55:26,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-12 20:55:26,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:26,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:26,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:26,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 20:55:26,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:55:26,872 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_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1);" [2024-11-12 20:55:26,872 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~z~0#1);" "assume main_~y~0#1 > main_~z~0#1;main_~y~0#1 := main_~y~0#1 - 1;" "assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1);" [2024-11-12 20:55:26,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-12 20:55:26,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745856736] [2024-11-12 20:55:26,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,878 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,884 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2024-11-12 20:55:26,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197939665] [2024-11-12 20:55:26,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,901 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:26,915 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2024-11-12 20:55:26,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:26,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996322658] [2024-11-12 20:55:26,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:26,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,920 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:26,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:26,959 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:26,959 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:26,959 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:26,959 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:26,960 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:26,960 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:26,960 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:26,960 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:26,960 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2024-11-12 20:55:26,960 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:26,960 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:26,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:26,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:27,007 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:27,007 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:27,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-12 20:55:27,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:27,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:27,032 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:27,032 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:27,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-12 20:55:27,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,045 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:27,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:27,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-12 20:55:27,069 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:27,069 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:27,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:27,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,082 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-12 20:55:27,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:27,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:27,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:27,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-12 20:55:27,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:27,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:27,349 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:27,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-12 20:55:27,354 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:27,354 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:27,354 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:27,354 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:27,354 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:27,354 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,354 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:27,354 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:27,354 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2024-11-12 20:55:27,354 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:27,354 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:27,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:27,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:27,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:27,401 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:27,401 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:27,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,403 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-12 20:55:27,405 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 20:55:27,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:27,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:27,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:27,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:27,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:27,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:27,423 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:27,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:27,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,436 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-12 20:55:27,439 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 20:55:27,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:27,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:27,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:27,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:27,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:27,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:27,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:27,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:27,458 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-12 20:55:27,458 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:55:27,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:27,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,460 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-12 20:55:27,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:27,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:27,463 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:27,463 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~z~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-12 20:55:27,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:27,474 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:27,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:27,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:27,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:27,499 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:55:27,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:27,560 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 20:55:27,561 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-12 20:55:27,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:27,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 7 states. [2024-11-12 20:55:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2024-11-12 20:55:27,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-12 20:55:27,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:27,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-12 20:55:27,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:27,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-12 20:55:27,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:27,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2024-11-12 20:55:27,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:27,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 36 transitions. [2024-11-12 20:55:27,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-12 20:55:27,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-12 20:55:27,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 36 transitions. [2024-11-12 20:55:27,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:27,600 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-11-12 20:55:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 36 transitions. [2024-11-12 20:55:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2024-11-12 20:55:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 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 20:55:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2024-11-12 20:55:27,603 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 32 transitions. [2024-11-12 20:55:27,603 INFO L426 stractBuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2024-11-12 20:55:27,603 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 20:55:27,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2024-11-12 20:55:27,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:55:27,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:27,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:27,604 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:27,604 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:55:27,605 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_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1);" "assume !(main_~x~0#1 > main_~z~0#1);" [2024-11-12 20:55:27,605 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~y~0#1 > main_~z~0#1);" "assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1);" "assume !(main_~x~0#1 > main_~z~0#1);" [2024-11-12 20:55:27,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:27,605 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-12 20:55:27,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:27,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277823576] [2024-11-12 20:55:27,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:27,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:27,613 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:27,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:27,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2024-11-12 20:55:27,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:27,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111628391] [2024-11-12 20:55:27,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:27,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111628391] [2024-11-12 20:55:27,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111628391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:27,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826209858] [2024-11-12 20:55:27,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:27,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:27,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:27,659 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:27,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-12 20:55:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:27,681 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:55:27,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:27,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:27,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826209858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:27,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:27,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 20:55:27,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921700469] [2024-11-12 20:55:27,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:27,703 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 20:55:27,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:27,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:55:27,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:55:27,705 INFO L87 Difference]: Start difference. First operand 21 states and 32 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 20:55:27,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:27,724 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2024-11-12 20:55:27,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2024-11-12 20:55:27,725 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:55:27,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2024-11-12 20:55:27,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 20:55:27,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 20:55:27,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 20:55:27,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:55:27,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:55:27,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:55:27,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:55:27,727 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:55:27,727 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 20:55:27,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 20:55:27,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:55:27,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 20:55:27,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:55:27 BoogieIcfgContainer [2024-11-12 20:55:27,733 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:55:27,734 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:55:27,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:55:27,734 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:55:27,734 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:25" (3/4) ... [2024-11-12 20:55:27,736 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:55:27,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:55:27,738 INFO L158 Benchmark]: Toolchain (without parser) took 2215.09ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 97.1MB in the beginning and 149.5MB in the end (delta: -52.4MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-12 20:55:27,738 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 124.2MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:55:27,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.27ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 85.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 20:55:27,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.47ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 84.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:55:27,739 INFO L158 Benchmark]: Boogie Preprocessor took 36.32ms. Allocated memory is still 167.8MB. Free memory was 84.3MB in the beginning and 137.8MB in the end (delta: -53.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-12 20:55:27,739 INFO L158 Benchmark]: RCFGBuilder took 182.91ms. Allocated memory is still 167.8MB. Free memory was 137.8MB in the beginning and 130.9MB in the end (delta: 6.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-12 20:55:27,740 INFO L158 Benchmark]: BuchiAutomizer took 1795.29ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 130.9MB in the beginning and 149.5MB in the end (delta: -18.6MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-11-12 20:55:27,740 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 226.5MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:55:27,741 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 124.2MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.27ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 85.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.47ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 84.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.32ms. Allocated memory is still 167.8MB. Free memory was 84.3MB in the beginning and 137.8MB in the end (delta: -53.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 182.91ms. Allocated memory is still 167.8MB. Free memory was 137.8MB in the beginning and 130.9MB in the end (delta: 6.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1795.29ms. Allocated memory was 167.8MB in the beginning and 226.5MB in the end (delta: 58.7MB). Free memory was 130.9MB in the beginning and 149.5MB in the end (delta: -18.6MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 226.5MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * z) + x) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * z) + y) and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax190 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq145 hnf94 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 20:55:27,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:27,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:28,168 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