./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.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 d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:49:37,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:49:38,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-24 23:49:38,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:49:38,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:49:38,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:49:38,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:49:38,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:49:38,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:49:38,087 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:49:38,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:49:38,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:49:38,088 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:49:38,089 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-24 23:49:38,091 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-24 23:49:38,091 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-24 23:49:38,091 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-24 23:49:38,092 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-24 23:49:38,092 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-24 23:49:38,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:49:38,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-24 23:49:38,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:49:38,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:49:38,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-24 23:49:38,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-24 23:49:38,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-24 23:49:38,098 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:49:38,098 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:49:38,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:49:38,099 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-24 23:49:38,099 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:49:38,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:49:38,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:49:38,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:49:38,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:49:38,100 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-24 23:49:38,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 [2024-10-24 23:49:38,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:49:38,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:49:38,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:49:38,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:49:38,383 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:49:38,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-10-24 23:49:39,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:49:40,048 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:49:40,049 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-10-24 23:49:40,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/509edfe8a/0ab6d09206f5421aa85914d81215e4dc/FLAG40f11072f [2024-10-24 23:49:40,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/509edfe8a/0ab6d09206f5421aa85914d81215e4dc [2024-10-24 23:49:40,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:49:40,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:49:40,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:49:40,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:49:40,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:49:40,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2a5b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40, skipping insertion in model container [2024-10-24 23:49:40,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:49:40,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:49:40,278 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:49:40,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:49:40,308 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:49:40,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40 WrapperNode [2024-10-24 23:49:40,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:49:40,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:49:40,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:49:40,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:49:40,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,337 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-10-24 23:49:40,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:49:40,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:49:40,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:49:40,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:49:40,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,356 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 23:49:40,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:49:40,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:49:40,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:49:40,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:49:40,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (1/1) ... [2024-10-24 23:49:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:40,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:40,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:40,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-24 23:49:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-10-24 23:49:40,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-10-24 23:49:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:49:40,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:49:40,525 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:49:40,526 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:49:40,608 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 23:49:40,608 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:49:40,625 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:49:40,625 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 23:49:40,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:40 BoogieIcfgContainer [2024-10-24 23:49:40,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:49:40,627 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-24 23:49:40,627 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-24 23:49:40,631 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-24 23:49:40,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:40,632 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.10 11:49:40" (1/3) ... [2024-10-24 23:49:40,633 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62078c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:49:40, skipping insertion in model container [2024-10-24 23:49:40,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:40,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:40" (2/3) ... [2024-10-24 23:49:40,634 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62078c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:49:40, skipping insertion in model container [2024-10-24 23:49:40,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:49:40,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:40" (3/3) ... [2024-10-24 23:49:40,636 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_counter3.c [2024-10-24 23:49:40,705 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-24 23:49:40,706 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-24 23:49:40,706 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-24 23:49:40,706 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-24 23:49:40,707 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-24 23:49:40,707 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-24 23:49:40,707 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-24 23:49:40,707 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-24 23:49:40,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:40,727 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2024-10-24 23:49:40,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:40,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:40,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-24 23:49:40,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:40,735 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-24 23:49:40,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:40,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2024-10-24 23:49:40,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:40,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:40,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-24 23:49:40,738 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-24 23:49:40,745 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L18true assume !(main_~i~0#1 <= 0); 16#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 13#$Ultimate##0true [2024-10-24 23:49:40,745 INFO L747 eck$LassoCheckResult]: Loop: 13#$Ultimate##0true ~a := #in~a; 4#L5true assume !(0 == ~a); 9#L8true call #t~ret0 := rec(~a - 1);< 13#$Ultimate##0true [2024-10-24 23:49:40,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:40,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1572150, now seen corresponding path program 1 times [2024-10-24 23:49:40,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:40,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758034776] [2024-10-24 23:49:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:40,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:40,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash 29960, now seen corresponding path program 1 times [2024-10-24 23:49:40,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:40,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831791215] [2024-10-24 23:49:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:40,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:40,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash -408719437, now seen corresponding path program 1 times [2024-10-24 23:49:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:40,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586813231] [2024-10-24 23:49:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:40,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:40,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:40,977 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:40,977 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:40,978 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:40,978 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:40,978 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:40,978 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:40,978 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:40,978 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:40,978 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Loop [2024-10-24 23:49:40,978 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:40,979 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:40,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,134 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:41,135 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:41,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-24 23:49:41,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,165 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,166 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-24 23:49:41,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-24 23:49:41,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,199 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,200 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-24 23:49:41,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,237 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,237 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-24 23:49:41,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,271 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,271 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,287 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 [2024-10-24 23:49:41,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-24 23:49:41,310 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,311 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,325 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 [2024-10-24 23:49:41,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-24 23:49:41,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-24 23:49:41,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,354 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-24 23:49:41,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:41,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,385 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,386 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-1} Honda state: {rec_#in~a=-1} Generalized eigenvectors: [{rec_#in~a=0}, {rec_#in~a=0}, {rec_#in~a=-1}] Lambdas: [4, 1, 1] Nus: [1, 0] [2024-10-24 23:49:41,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-24 23:49:41,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,412 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,412 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-24 23:49:41,445 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:41,445 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:41,445 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:41,446 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:41,446 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:41,446 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,446 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:41,446 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:41,446 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Lasso [2024-10-24 23:49:41,446 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:41,446 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:41,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,565 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:41,566 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:41,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-24 23:49:41,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,584 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,584 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-24 23:49:41,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,596 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-24 23:49:41,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,609 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,609 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,621 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-24 23:49:41,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,634 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,634 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,644 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 [2024-10-24 23:49:41,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-24 23:49:41,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,659 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,659 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-24 23:49:41,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-24 23:49:41,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,685 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,685 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,699 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-24 23:49:41,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,711 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,712 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,724 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-24 23:49:41,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,740 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,740 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-24 23:49:41,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,758 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-24 23:49:41,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,777 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,777 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-24 23:49:41,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,794 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-24 23:49:41,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,811 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,811 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,824 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-24 23:49:41,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,837 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,837 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-24 23:49:41,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,849 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-24 23:49:41,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,863 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-24 23:49:41,863 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-24 23:49:41,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,876 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-24 23:49:41,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:41,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:41,918 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:41,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-24 23:49:41,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:41,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:41,956 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:41,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:41,961 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:41,961 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:41,961 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:41,961 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:41,961 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:41,961 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:41,961 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:41,961 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:41,961 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Lasso [2024-10-24 23:49:41,961 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:41,961 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:41,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:41,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:42,068 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:42,074 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:42,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,077 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-24 23:49:42,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,093 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,105 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-24 23:49:42,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,118 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-24 23:49:42,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,130 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-24 23:49:42,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,143 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,155 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-24 23:49:42,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,168 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,180 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-24 23:49:42,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,194 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-24 23:49:42,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,212 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-24 23:49:42,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,231 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,246 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-24 23:49:42,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,266 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-24 23:49:42,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,283 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-24 23:49:42,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,314 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-24 23:49:42,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:42,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:42,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:42,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:42,327 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-24 23:49:42,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-24 23:49:42,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,339 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-24 23:49:42,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:42,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:42,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:42,350 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-24 23:49:42,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:42,361 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-24 23:49:42,361 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-24 23:49:42,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:42,394 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-10-24 23:49:42,394 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2024-10-24 23:49:42,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:42,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:42,420 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:42,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-24 23:49:42,422 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:42,443 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-24 23:49:42,443 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:42,444 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2024-10-24 23:49:42,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:42,465 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-24 23:49:42,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:42,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 23:49:42,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:42,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 23:49:42,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:42,671 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-10-24 23:49:42,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:42,803 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 43 transitions. Complement of second has 17 states. [2024-10-24 23:49:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:42,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:49:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2024-10-24 23:49:42,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-24 23:49:42,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:42,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-24 23:49:42,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:42,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-24 23:49:42,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:42,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-10-24 23:49:42,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:42,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 23 states and 30 transitions. [2024-10-24 23:49:42,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-24 23:49:42,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-24 23:49:42,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2024-10-24 23:49:42,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:42,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-10-24 23:49:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2024-10-24 23:49:42,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-10-24 23:49:42,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 23:49:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2024-10-24 23:49:42,858 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-10-24 23:49:42,858 INFO L425 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-10-24 23:49:42,858 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-24 23:49:42,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2024-10-24 23:49:42,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:42,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:42,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:42,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:49:42,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-24 23:49:42,862 INFO L745 eck$LassoCheckResult]: Stem: 135#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 132#L18 assume !(main_~i~0#1 <= 0); 125#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 138#$Ultimate##0 ~a := #in~a; 124#L5 assume 0 == ~a;#res := 0; 126#recFINAL assume true; 143#recEXIT >#48#return; 136#L20-1 main_~res~1#1 := main_#t~ret3#1;havoc main_#t~ret3#1; 137#L21-2 [2024-10-24 23:49:42,863 INFO L747 eck$LassoCheckResult]: Loop: 137#L21-2 assume !!(main_~res~1#1 < 1); 137#L21-2 [2024-10-24 23:49:42,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1937407319, now seen corresponding path program 1 times [2024-10-24 23:49:42,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:42,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678571463] [2024-10-24 23:49:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:42,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:42,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-24 23:49:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:42,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:49:42,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678571463] [2024-10-24 23:49:42,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678571463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:49:42,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:49:42,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:49:42,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455206004] [2024-10-24 23:49:42,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:49:42,980 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-24 23:49:42,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2024-10-24 23:49:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416614247] [2024-10-24 23:49:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:42,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:42,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:49:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:49:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:49:43,004 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 23:49:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:49:43,041 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-10-24 23:49:43,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2024-10-24 23:49:43,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:43,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 21 transitions. [2024-10-24 23:49:43,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-24 23:49:43,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-24 23:49:43,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2024-10-24 23:49:43,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:43,044 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-10-24 23:49:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2024-10-24 23:49:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-24 23:49:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 23:49:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-10-24 23:49:43,047 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-10-24 23:49:43,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:49:43,049 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-10-24 23:49:43,049 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-24 23:49:43,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2024-10-24 23:49:43,050 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:43,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:43,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:43,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:49:43,052 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-24 23:49:43,052 INFO L745 eck$LassoCheckResult]: Stem: 189#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 185#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 186#L18 assume !(main_~i~0#1 <= 0); 182#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 192#$Ultimate##0 ~a := #in~a; 181#L5 assume !(0 == ~a); 179#L8 call #t~ret0 := rec(~a - 1);< 188#$Ultimate##0 ~a := #in~a; 178#L5 assume 0 == ~a;#res := 0; 180#recFINAL assume true; 193#recEXIT >#46#return; 187#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 183#L10-2 [2024-10-24 23:49:43,053 INFO L747 eck$LassoCheckResult]: Loop: 183#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1; 183#L10-2 [2024-10-24 23:49:43,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash 27203062, now seen corresponding path program 1 times [2024-10-24 23:49:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128313702] [2024-10-24 23:49:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2024-10-24 23:49:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486138688] [2024-10-24 23:49:43,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash 843294937, now seen corresponding path program 1 times [2024-10-24 23:49:43,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140669049] [2024-10-24 23:49:43,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 23:49:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:49:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:49:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140669049] [2024-10-24 23:49:43,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140669049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:49:43,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:49:43,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:49:43,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110307462] [2024-10-24 23:49:43,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:49:43,191 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:43,191 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:43,191 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:43,191 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:43,192 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:43,192 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,192 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:43,192 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:43,192 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration3_Loop [2024-10-24 23:49:43,192 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:43,192 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:43,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:43,210 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:43,210 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:43,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,212 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-24 23:49:43,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:43,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:43,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:43,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,236 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-24 23:49:43,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:43,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:43,273 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:43,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:43,278 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:43,278 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:43,278 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:43,278 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:43,278 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:43,278 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,278 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:43,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:43,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration3_Loop [2024-10-24 23:49:43,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:43,279 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:43,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:43,297 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:43,297 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:43,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,299 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-24 23:49:43,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:43,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:43,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:43,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:43,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:43,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:43,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:43,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:43,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:43,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-24 23:49:43,319 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:49:43,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,323 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-24 23:49:43,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:43,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:43,324 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:43,324 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2024-10-24 23:49:43,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:43,336 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:43,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 23:49:43,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,466 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:49:43,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:43,467 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-24 23:49:43,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 23:49:43,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 27 states and 36 transitions. Complement of second has 6 states. [2024-10-24 23:49:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 23:49:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-10-24 23:49:43,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 1 letters. [2024-10-24 23:49:43,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:43,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 1 letters. [2024-10-24 23:49:43,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:43,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2024-10-24 23:49:43,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:43,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2024-10-24 23:49:43,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:43,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 36 transitions. [2024-10-24 23:49:43,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-24 23:49:43,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-10-24 23:49:43,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2024-10-24 23:49:43,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:43,511 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2024-10-24 23:49:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2024-10-24 23:49:43,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2024-10-24 23:49:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 15 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 23:49:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2024-10-24 23:49:43,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-10-24 23:49:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:49:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:49:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:49:43,520 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 23:49:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:49:43,534 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2024-10-24 23:49:43,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2024-10-24 23:49:43,535 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:43,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2024-10-24 23:49:43,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-24 23:49:43,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-24 23:49:43,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2024-10-24 23:49:43,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:43,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-24 23:49:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2024-10-24 23:49:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-24 23:49:43,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.125) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 23:49:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-10-24 23:49:43,541 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-24 23:49:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:49:43,542 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-24 23:49:43,543 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-24 23:49:43,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2024-10-24 23:49:43,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2024-10-24 23:49:43,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:43,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:43,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:49:43,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-24 23:49:43,546 INFO L745 eck$LassoCheckResult]: Stem: 344#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 339#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 340#L18 assume !(main_~i~0#1 <= 0); 336#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 349#$Ultimate##0 ~a := #in~a; 335#L5 assume !(0 == ~a); 333#L8 call #t~ret0 := rec(~a - 1);< 343#$Ultimate##0 ~a := #in~a; 332#L5 assume 0 == ~a;#res := 0; 334#recFINAL assume true; 347#recEXIT >#46#return; 348#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 337#L10-2 assume !(~rescopy~0 > 0); 338#L10-3 #res := 1 + ~res~0; 350#recFINAL assume true; 351#recEXIT >#48#return; 345#L20-1 main_~res~1#1 := main_#t~ret3#1;havoc main_#t~ret3#1; 346#L21-2 [2024-10-24 23:49:43,546 INFO L747 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~res~1#1 < 1); 346#L21-2 [2024-10-24 23:49:43,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1542563482, now seen corresponding path program 1 times [2024-10-24 23:49:43,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789555462] [2024-10-24 23:49:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-24 23:49:43,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 2 times [2024-10-24 23:49:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180110418] [2024-10-24 23:49:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,609 INFO L85 PathProgramCache]: Analyzing trace with hash -574827647, now seen corresponding path program 1 times [2024-10-24 23:49:43,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101379481] [2024-10-24 23:49:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-24 23:49:43,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-24 23:49:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 23:49:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:49:43,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:49:43,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101379481] [2024-10-24 23:49:43,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101379481] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:49:43,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287048276] [2024-10-24 23:49:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:49:43,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,757 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-10-24 23:49:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:43,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 23:49:43,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:49:43,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:49:43,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287048276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:49:43,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:49:43,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2024-10-24 23:49:43,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527341614] [2024-10-24 23:49:43,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:49:43,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:49:43,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 23:49:43,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 23:49:43,851 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 6 Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 23:49:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 23:49:43,870 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-10-24 23:49:43,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2024-10-24 23:49:43,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-24 23:49:43,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 20 transitions. [2024-10-24 23:49:43,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-24 23:49:43,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-24 23:49:43,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 20 transitions. [2024-10-24 23:49:43,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-24 23:49:43,872 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-10-24 23:49:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 20 transitions. [2024-10-24 23:49:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-24 23:49:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 23:49:43,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-10-24 23:49:43,876 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-10-24 23:49:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:49:43,878 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-10-24 23:49:43,878 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-24 23:49:43,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2024-10-24 23:49:43,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-24 23:49:43,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:49:43,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:49:43,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:49:43,879 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-24 23:49:43,879 INFO L745 eck$LassoCheckResult]: Stem: 461#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 462#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;havoc main_#t~nondet2#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 455#L18 assume !(main_~i~0#1 <= 0); 456#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 469#$Ultimate##0 ~a := #in~a; 467#L5 assume !(0 == ~a); 458#L8 call #t~ret0 := rec(~a - 1);< 460#$Ultimate##0 ~a := #in~a; 467#L5 assume !(0 == ~a); 458#L8 call #t~ret0 := rec(~a - 1);< 460#$Ultimate##0 ~a := #in~a; 465#L5 assume 0 == ~a;#res := 0; 466#recFINAL assume true; 472#recEXIT >#46#return; 471#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 463#L10-2 assume !(~rescopy~0 > 0); 464#L10-3 #res := 1 + ~res~0; 470#recFINAL assume true; 468#recEXIT >#46#return; 457#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 459#L10-2 [2024-10-24 23:49:43,879 INFO L747 eck$LassoCheckResult]: Loop: 459#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1; 459#L10-2 [2024-10-24 23:49:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1552442957, now seen corresponding path program 1 times [2024-10-24 23:49:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210925556] [2024-10-24 23:49:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,900 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2024-10-24 23:49:43,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854472237] [2024-10-24 23:49:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:43,909 INFO L85 PathProgramCache]: Analyzing trace with hash -881091396, now seen corresponding path program 1 times [2024-10-24 23:49:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:49:43,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787201104] [2024-10-24 23:49:43,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:49:43,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:49:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:49:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:49:43,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:49:43,946 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:43,946 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:43,946 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:43,946 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:43,946 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-24 23:49:43,946 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,946 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:43,946 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:43,946 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration5_Loop [2024-10-24 23:49:43,947 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:43,947 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:43,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:43,965 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:43,965 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-24 23:49:43,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:43,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:43,967 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:43,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-24 23:49:43,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-24 23:49:43,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:44,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:44,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:44,002 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:44,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-24 23:49:44,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-24 23:49:44,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-24 23:49:44,043 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-24 23:49:44,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:44,049 INFO L204 LassoAnalysis]: Preferences: [2024-10-24 23:49:44,049 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-24 23:49:44,049 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-24 23:49:44,049 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-24 23:49:44,050 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-24 23:49:44,050 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:44,050 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-24 23:49:44,050 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-24 23:49:44,050 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration5_Loop [2024-10-24 23:49:44,050 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-24 23:49:44,050 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-24 23:49:44,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-24 23:49:44,068 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-24 23:49:44,068 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-24 23:49:44,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:44,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:44,069 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:44,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-24 23:49:44,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-24 23:49:44,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-24 23:49:44,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-24 23:49:44,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-24 23:49:44,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-24 23:49:44,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-24 23:49:44,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-24 23:49:44,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-24 23:49:44,085 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-24 23:49:44,088 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-24 23:49:44,088 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-24 23:49:44,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:49:44,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:49:44,089 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:49:44,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-24 23:49:44,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-24 23:49:44,091 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-24 23:49:44,091 INFO L474 LassoAnalysis]: Proved termination. [2024-10-24 23:49:44,091 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2024-10-24 23:49:44,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:44,102 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-24 23:49:44,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,296 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:44,297 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-24 23:49:44,297 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 23 states and 27 transitions. Complement of second has 6 states. [2024-10-24 23:49:44,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-10-24 23:49:44,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 20 letters. Loop has 1 letters. [2024-10-24 23:49:44,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:44,335 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:44,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,505 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:44,506 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-24 23:49:44,506 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 23 states and 27 transitions. Complement of second has 6 states. [2024-10-24 23:49:44,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-10-24 23:49:44,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 20 letters. Loop has 1 letters. [2024-10-24 23:49:44,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:44,539 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-24 23:49:44,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:49:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-24 23:49:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:49:44,721 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:49:44,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:49:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:49:44,722 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-24 23:49:44,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 29 states and 35 transitions. Complement of second has 5 states. [2024-10-24 23:49:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-24 23:49:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 23:49:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-10-24 23:49:44,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 20 letters. Loop has 1 letters. [2024-10-24 23:49:44,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:44,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 21 letters. Loop has 1 letters. [2024-10-24 23:49:44,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:44,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2024-10-24 23:49:44,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-24 23:49:44,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 35 transitions. [2024-10-24 23:49:44,756 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:49:44,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2024-10-24 23:49:44,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-24 23:49:44,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-24 23:49:44,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-24 23:49:44,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-24 23:49:44,756 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:44,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:44,756 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 23:49:44,756 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-24 23:49:44,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-24 23:49:44,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-24 23:49:44,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-24 23:49:44,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.10 11:49:44 BoogieIcfgContainer [2024-10-24 23:49:44,764 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-24 23:49:44,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:49:44,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:49:44,766 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:49:44,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:40" (3/4) ... [2024-10-24 23:49:44,768 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 23:49:44,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:49:44,769 INFO L158 Benchmark]: Toolchain (without parser) took 4694.17ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 128.4MB in the end (delta: 943.2kB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-10-24 23:49:44,769 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 109.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.96ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 118.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.35ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: Boogie Preprocessor took 30.49ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 115.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: RCFGBuilder took 255.94ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 105.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: BuchiAutomizer took 4137.44ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 128.4MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:49:44,770 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 165.7MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:49:44,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 109.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.96ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 118.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.35ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 116.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.49ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 115.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.94ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 105.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4137.44ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 128.4MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 165.7MB. Free memory is still 128.4MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 6 locations. One deterministic module has affine ranking function rescopy and consists of 3 locations. One nondeterministic module has affine ranking function rescopy and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 96 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT1 SILN1 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf120 smp100 tf108 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 105ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 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! [2024-10-24 23:49:44,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-10-24 23:49:44,997 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