./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.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 b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:21:43,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:21:43,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-09 15:21:43,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:21:43,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:21:43,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:21:43,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:21:43,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:21:43,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:21:43,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:21:43,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:21:43,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:21:43,252 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:21:43,252 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:21:43,255 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:21:43,255 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:21:43,255 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:21:43,255 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:21:43,256 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:21:43,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:21:43,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:21:43,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:21:43,257 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:21:43,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:21:43,258 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:21:43,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:21:43,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:21:43,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:21:43,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:21:43,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:21:43,259 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:21:43,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2024-11-09 15:21:43,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:21:43,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:21:43,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:21:43,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:21:43,499 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:21:43,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-11-09 15:21:44,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:21:45,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:21:45,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-11-09 15:21:45,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c994487a/58a152164ec14b12afa54dc04d572e78/FLAG572f6b3e8 [2024-11-09 15:21:45,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c994487a/58a152164ec14b12afa54dc04d572e78 [2024-11-09 15:21:45,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:21:45,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:21:45,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:21:45,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:21:45,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:21:45,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7da744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45, skipping insertion in model container [2024-11-09 15:21:45,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:21:45,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:21:45,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:21:45,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:21:45,611 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:21:45,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45 WrapperNode [2024-11-09 15:21:45,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:21:45,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:21:45,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:21:45,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:21:45,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,630 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-09 15:21:45,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:21:45,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:21:45,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:21:45,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:21:45,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,642 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 15:21:45,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:21:45,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:21:45,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:21:45,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:21:45,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (1/1) ... [2024-11-09 15:21:45,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:45,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:45,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 15:21:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:21:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:21:45,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:21:45,793 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:21:45,829 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 15:21:45,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:21:45,836 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:21:45,836 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:21:45,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:21:45 BoogieIcfgContainer [2024-11-09 15:21:45,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:21:45,838 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:21:45,838 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:21:45,840 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:21:45,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:21:45,841 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:21:45" (1/3) ... [2024-11-09 15:21:45,842 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea2ece9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:21:45, skipping insertion in model container [2024-11-09 15:21:45,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:21:45,842 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:21:45" (2/3) ... [2024-11-09 15:21:45,843 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ea2ece9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:21:45, skipping insertion in model container [2024-11-09 15:21:45,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:21:45,843 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:21:45" (3/3) ... [2024-11-09 15:21:45,844 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2024-11-09 15:21:45,879 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:21:45,879 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:21:45,879 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:21:45,880 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:21:45,880 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:21:45,880 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:21:45,880 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:21:45,880 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:21:45,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:45,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:45,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:45,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:45,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:21:45,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:45,899 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:21:45,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:45,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:45,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:45,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:45,901 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:21:45,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:45,906 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 10#L11true assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 2#L12-2true [2024-11-09 15:21:45,906 INFO L747 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!!(0 == main_~x~0#1); 5#L13true assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 7#L13-2true main_~c~0#1 := 1 + main_~c~0#1; 2#L12-2true [2024-11-09 15:21:45,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:45,910 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-09 15:21:45,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:45,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400703399] [2024-11-09 15:21:45,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:45,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:45,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:45,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:45,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:45,987 INFO L85 PathProgramCache]: Analyzing trace with hash 43793, now seen corresponding path program 1 times [2024-11-09 15:21:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:45,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408874003] [2024-11-09 15:21:45,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:45,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:45,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:45,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:46,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:46,001 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 1 times [2024-11-09 15:21:46,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:46,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577352338] [2024-11-09 15:21:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:46,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:46,092 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:46,093 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:46,093 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:46,093 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:46,093 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:46,093 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,093 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:46,093 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:46,093 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-11-09 15:21:46,094 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:46,094 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:46,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,220 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:46,220 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:46,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-09 15:21:46,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:46,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:46,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:46,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-09 15:21:46,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:46,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:46,408 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:21:46,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-09 15:21:46,413 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:46,413 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:46,413 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:46,413 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:46,414 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:21:46,414 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,414 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:46,414 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:46,414 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-11-09 15:21:46,414 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:46,414 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:46,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,495 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:46,498 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:21:46,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-09 15:21:46,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:46,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:46,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:21:46,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:46,514 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-09 15:21:46,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:46,518 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-09 15:21:46,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:21:46,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:21:46,525 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:21:46,525 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:21:46,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-09 15:21:46,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:21:46,531 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:21:46,531 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:21:46,532 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-09 15:21:46,542 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 [2024-11-09 15:21:46,545 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:21:46,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:46,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:21:46,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:46,582 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:21:46,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:46,663 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-09 15:21:46,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-09 15:21:46,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:46,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2024-11-09 15:21:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-09 15:21:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-09 15:21:46,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-09 15:21:46,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:46,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-09 15:21:46,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:46,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-09 15:21:46,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:46,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-11-09 15:21:46,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:46,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 13 states and 16 transitions. [2024-11-09 15:21:46,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-09 15:21:46,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-09 15:21:46,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-09 15:21:46,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:21:46,724 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-09 15:21:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-09 15:21:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2024-11-09 15:21:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:46,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-09 15:21:46,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-09 15:21:46,742 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-09 15:21:46,742 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 15:21:46,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-09 15:21:46,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:46,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:46,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:46,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-09 15:21:46,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:46,744 INFO L745 eck$LassoCheckResult]: Stem: 85#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 87#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 88#L12-2 assume !!!(0 == main_~x~0#1); 79#L13 [2024-11-09 15:21:46,744 INFO L747 eck$LassoCheckResult]: Loop: 79#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 82#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 78#L12-2 assume !!!(0 == main_~x~0#1); 79#L13 [2024-11-09 15:21:46,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2024-11-09 15:21:46,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:46,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726293058] [2024-11-09 15:21:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:46,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:46,751 INFO L85 PathProgramCache]: Analyzing trace with hash 48715, now seen corresponding path program 1 times [2024-11-09 15:21:46,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:46,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390160781] [2024-11-09 15:21:46,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:46,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:46,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122240, now seen corresponding path program 1 times [2024-11-09 15:21:46,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:46,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326643261] [2024-11-09 15:21:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:46,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:46,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:46,789 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:46,789 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:46,789 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:46,790 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:46,790 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:46,790 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,790 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:46,790 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:46,790 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2024-11-09 15:21:46,790 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:46,790 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:46,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:46,848 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:46,849 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,851 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-09 15:21:46,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:46,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:46,881 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:46,881 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:46,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-09 15:21:46,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,902 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-09 15:21:46,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:46,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:46,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:46,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:46,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:46,936 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:46,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-09 15:21:46,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:46,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,017 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:47,017 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 1, 3] Nus: [0, 0] [2024-11-09 15:21:47,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-09 15:21:47,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:47,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,049 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:47,050 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:47,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-09 15:21:47,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-09 15:21:47,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:47,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-09 15:21:47,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-09 15:21:47,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:47,094 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,119 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:47,119 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-09 15:21:47,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,166 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:47,166 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:47,166 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:47,166 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:47,166 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:47,166 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,166 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:47,167 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:47,167 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-11-09 15:21:47,167 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:47,167 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:47,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,288 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:47,288 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:47,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,289 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-09 15:21:47,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:47,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,311 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:47,311 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:47,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-09 15:21:47,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-09 15:21:47,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:47,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,341 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:47,341 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:47,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,353 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-09 15:21:47,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:47,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,379 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-09 15:21:47,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:47,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:47,557 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:21:47,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-09 15:21:47,562 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:47,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:47,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:47,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:47,562 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:21:47,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:47,563 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:47,563 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-11-09 15:21:47,563 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:47,563 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:47,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:47,644 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:47,644 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:21:47,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,645 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-09 15:21:47,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:47,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:47,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:21:47,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:47,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:21:47,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:47,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:21:47,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:21:47,662 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:21:47,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,674 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-09 15:21:47,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:47,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:47,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:21:47,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:47,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:21:47,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:47,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:21:47,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:21:47,688 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:21:47,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:47,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,699 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-09 15:21:47,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:47,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:47,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:47,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:21:47,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:47,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-09 15:21:47,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-09 15:21:47,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:21:47,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-09 15:21:47,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,733 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-09 15:21:47,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:47,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:47,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:47,745 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-09 15:21:47,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:47,751 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-09 15:21:47,751 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-09 15:21:47,763 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:21:47,776 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-09 15:21:47,777 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-11-09 15:21:47,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:47,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:47,780 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:47,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-09 15:21:47,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:21:47,796 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-09 15:21:47,797 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:21:47,797 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [2*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2024-11-09 15:21:47,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-09 15:21:47,810 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-09 15:21:47,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:47,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:21:47,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:47,843 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:21:47,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:47,858 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-09 15:21:47,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:47,885 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 5 states. [2024-11-09 15:21:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2024-11-09 15:21:47,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:47,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-11-09 15:21:47,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-09 15:21:47,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:47,886 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-09 15:21:47,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:47,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:21:47,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:47,918 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:21:47,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:47,936 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-09 15:21:47,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:47,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 6 states. [2024-11-09 15:21:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-09 15:21:47,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-09 15:21:47,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-09 15:21:47,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:47,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-09 15:21:47,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:47,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-09 15:21:47,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:47,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2024-11-09 15:21:47,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:47,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2024-11-09 15:21:47,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-09 15:21:47,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-09 15:21:47,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-11-09 15:21:47,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:21:47,962 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-09 15:21:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-11-09 15:21:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-11-09 15:21:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-11-09 15:21:47,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-09 15:21:47,963 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-09 15:21:47,963 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 15:21:47,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-11-09 15:21:47,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:47,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:47,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:47,964 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:21:47,964 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:47,964 INFO L745 eck$LassoCheckResult]: Stem: 219#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 221#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 211#L12-2 assume !!!(0 == main_~x~0#1); 212#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 216#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 218#L12-2 [2024-11-09 15:21:47,964 INFO L747 eck$LassoCheckResult]: Loop: 218#L12-2 assume !!!(0 == main_~x~0#1); 214#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 215#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 218#L12-2 [2024-11-09 15:21:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 2 times [2024-11-09 15:21:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:47,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693680095] [2024-11-09 15:21:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:47,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:47,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:47,974 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 2 times [2024-11-09 15:21:47,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:47,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201438299] [2024-11-09 15:21:47,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:47,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:47,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:47,984 INFO L85 PathProgramCache]: Analyzing trace with hash -446161376, now seen corresponding path program 1 times [2024-11-09 15:21:47,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:47,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073429476] [2024-11-09 15:21:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:47,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:48,015 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:48,015 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:48,015 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:48,015 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:48,015 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:48,016 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,016 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:48,016 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:48,016 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2024-11-09 15:21:48,016 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:48,016 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:48,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,070 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:48,070 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:48,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,073 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:48,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-09 15:21:48,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,106 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 [2024-11-09 15:21:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,108 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:48,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-09 15:21:48,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:48,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,193 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,194 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Honda state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [14, 1, 4] Nus: [0, 1] [2024-11-09 15:21:48,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:48,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,206 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:48,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-09 15:21:48,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,226 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,227 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:48,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:48,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,238 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) [2024-11-09 15:21:48,239 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 [2024-11-09 15:21:48,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:48,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,263 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) [2024-11-09 15:21:48,264 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 [2024-11-09 15:21:48,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:48,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,291 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,291 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-09 15:21:48,302 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 [2024-11-09 15:21:48,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,303 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) [2024-11-09 15:21:48,306 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 [2024-11-09 15:21:48,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,324 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,324 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:48,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-09 15:21:48,358 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:48,358 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:48,358 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:48,358 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:48,359 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:48,359 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,359 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:48,359 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:48,359 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-11-09 15:21:48,359 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:48,359 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:48,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,433 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:48,434 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,440 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) [2024-11-09 15:21:48,441 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 [2024-11-09 15:21:48,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,452 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,453 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:48,463 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 [2024-11-09 15:21:48,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,464 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) [2024-11-09 15:21:48,465 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 [2024-11-09 15:21:48,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,484 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,484 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:48,494 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 [2024-11-09 15:21:48,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,496 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) [2024-11-09 15:21:48,498 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 [2024-11-09 15:21:48,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,509 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:48,510 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:48,520 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 [2024-11-09 15:21:48,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,522 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) [2024-11-09 15:21:48,548 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 [2024-11-09 15:21:48,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:48,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-09 15:21:48,576 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 [2024-11-09 15:21:48,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,578 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) [2024-11-09 15:21:48,579 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 [2024-11-09 15:21:48,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:48,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:48,647 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:21:48,654 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 [2024-11-09 15:21:48,654 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:48,654 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:48,654 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:48,654 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:48,654 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:21:48,654 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,655 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:48,655 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:48,655 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-11-09 15:21:48,655 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:48,655 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:48,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:48,734 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:48,735 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:21:48,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,737 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) [2024-11-09 15:21:48,744 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 [2024-11-09 15:21:48,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:21:48,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:21:48,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:21:48,755 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-09 15:21:48,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:21:48,763 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-09 15:21:48,763 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-09 15:21:48,776 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:21:48,791 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-11-09 15:21:48,792 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-11-09 15:21:48,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:48,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:48,793 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) [2024-11-09 15:21:48,794 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 [2024-11-09 15:21:48,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:21:48,808 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-09 15:21:48,808 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:21:48,808 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0] [2024-11-09 15:21:48,819 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 [2024-11-09 15:21:48,821 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-09 15:21:48,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:48,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:21:48,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:48,908 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:21:48,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:21:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:48,957 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2024-11-09 15:21:48,957 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,023 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 10 states. [2024-11-09 15:21:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2024-11-09 15:21:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2024-11-09 15:21:49,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-09 15:21:49,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:49,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-09 15:21:49,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:49,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-09 15:21:49,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:21:49,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2024-11-09 15:21:49,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:49,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2024-11-09 15:21:49,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-09 15:21:49,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-09 15:21:49,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2024-11-09 15:21:49,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:21:49,028 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-09 15:21:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2024-11-09 15:21:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 12. [2024-11-09 15:21:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-11-09 15:21:49,031 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-09 15:21:49,032 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-09 15:21:49,032 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 15:21:49,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-11-09 15:21:49,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:49,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:49,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:49,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:21:49,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:49,034 INFO L745 eck$LassoCheckResult]: Stem: 329#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 330#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 331#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 321#L12-2 assume !!!(0 == main_~x~0#1); 322#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 327#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 323#L12-2 assume !!!(0 == main_~x~0#1); 324#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 332#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 328#L12-2 [2024-11-09 15:21:49,034 INFO L747 eck$LassoCheckResult]: Loop: 328#L12-2 assume !!!(0 == main_~x~0#1); 325#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 326#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 328#L12-2 [2024-11-09 15:21:49,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash -444314396, now seen corresponding path program 2 times [2024-11-09 15:21:49,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:49,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21549109] [2024-11-09 15:21:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:49,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:49,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:21:49,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21549109] [2024-11-09 15:21:49,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21549109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:21:49,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:21:49,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:21:49,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384850622] [2024-11-09 15:21:49,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:21:49,089 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 15:21:49,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 3 times [2024-11-09 15:21:49,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:49,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365376054] [2024-11-09 15:21:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:49,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:49,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:49,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:49,147 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:49,148 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:49,148 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:49,148 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:49,148 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:49,148 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,148 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:49,148 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:49,148 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2024-11-09 15:21:49,148 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:49,148 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:49,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,234 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:49,234 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:49,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,236 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) [2024-11-09 15:21:49,238 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 [2024-11-09 15:21:49,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,262 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 [2024-11-09 15:21:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,264 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) [2024-11-09 15:21:49,265 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 [2024-11-09 15:21:49,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:49,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,290 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,290 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-09 15:21:49,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-09 15:21:49,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,302 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) [2024-11-09 15:21:49,303 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 [2024-11-09 15:21:49,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,323 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,323 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:49,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-09 15:21:49,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,338 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) [2024-11-09 15:21:49,339 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 [2024-11-09 15:21:49,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,358 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,358 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:49,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:49,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,371 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:49,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-09 15:21:49,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-09 15:21:49,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,400 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) [2024-11-09 15:21:49,401 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 [2024-11-09 15:21:49,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:49,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,452 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,453 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Honda state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [14, 1, 4] Nus: [0, 1] [2024-11-09 15:21:49,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-09 15:21:49,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:21:49,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:21:49,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:21:49,467 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:21:49,478 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-09 15:21:49,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-11-09 15:21:49,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:49,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 15 transitions. [2024-11-09 15:21:49,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-09 15:21:49,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-09 15:21:49,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2024-11-09 15:21:49,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:21:49,479 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-09 15:21:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2024-11-09 15:21:49,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-11-09 15:21:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-09 15:21:49,480 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-09 15:21:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:21:49,481 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-09 15:21:49,481 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 15:21:49,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2024-11-09 15:21:49,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-09 15:21:49,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:21:49,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:21:49,482 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2024-11-09 15:21:49,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-09 15:21:49,482 INFO L745 eck$LassoCheckResult]: Stem: 363#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 365#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 366#L12-2 assume !!!(0 == main_~x~0#1); 367#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 362#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 358#L12-2 assume !!!(0 == main_~x~0#1); 359#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 361#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 356#L12-2 [2024-11-09 15:21:49,482 INFO L747 eck$LassoCheckResult]: Loop: 356#L12-2 assume !!!(0 == main_~x~0#1); 357#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 360#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 356#L12-2 [2024-11-09 15:21:49,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -446161438, now seen corresponding path program 3 times [2024-11-09 15:21:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793133042] [2024-11-09 15:21:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:49,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:21:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:21:49,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:21:49,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793133042] [2024-11-09 15:21:49,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793133042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:21:49,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:21:49,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:21:49,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975400461] [2024-11-09 15:21:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:21:49,503 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-09 15:21:49,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:21:49,503 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 4 times [2024-11-09 15:21:49,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:21:49,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159790566] [2024-11-09 15:21:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:21:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:21:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:49,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:21:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:21:49,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:21:49,527 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:21:49,527 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:21:49,527 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:21:49,527 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:21:49,527 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:21:49,527 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,527 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:21:49,527 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:21:49,527 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2024-11-09 15:21:49,528 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:21:49,528 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:21:49,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:21:49,579 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:21:49,579 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:21:49,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,580 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) [2024-11-09 15:21:49,581 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 [2024-11-09 15:21:49,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,600 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,601 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:49,611 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 [2024-11-09 15:21:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,613 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) [2024-11-09 15:21:49,614 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 [2024-11-09 15:21:49,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-09 15:21:49,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,638 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) [2024-11-09 15:21:49,639 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 [2024-11-09 15:21:49,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:49,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,690 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,690 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Honda state: {ULTIMATE.start_main_~x~0#1=-3, ULTIMATE.start_main_~y~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [14, 1, 4] Nus: [0, 1] [2024-11-09 15:21:49,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:49,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,702 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:49,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-09 15:21:49,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:49,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,726 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:49,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-09 15:21:49,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:21:49,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,754 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,754 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-09 15:21:49,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:49,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:21:49,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:21:49,765 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 15:21:49,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-09 15:21:49,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:21:49,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:21:49,785 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:21:49,785 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-09 15:21:49,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:49,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:21:49,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:21:49,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:21:49,796 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:21:49,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:21:49,800 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2024-11-09 15:21:49,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 7 transitions. [2024-11-09 15:21:49,800 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:21:49,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2024-11-09 15:21:49,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-09 15:21:49,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-09 15:21:49,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-09 15:21:49,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 15:21:49,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:21:49,801 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:21:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:21:49,801 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 15:21:49,801 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-09 15:21:49,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-09 15:21:49,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-09 15:21:49,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-09 15:21:49,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:21:49 BoogieIcfgContainer [2024-11-09 15:21:49,807 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:21:49,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:21:49,808 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:21:49,808 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:21:49,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:21:45" (3/4) ... [2024-11-09 15:21:49,810 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 15:21:49,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:21:49,811 INFO L158 Benchmark]: Toolchain (without parser) took 4356.64ms. Allocated memory was 190.8MB in the beginning and 299.9MB in the end (delta: 109.1MB). Free memory was 120.1MB in the beginning and 193.0MB in the end (delta: -72.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-11-09 15:21:49,811 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 190.8MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:21:49,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.33ms. Allocated memory is still 190.8MB. Free memory was 119.8MB in the beginning and 108.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 15:21:49,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.17ms. Allocated memory is still 190.8MB. Free memory was 108.7MB in the beginning and 107.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:21:49,812 INFO L158 Benchmark]: Boogie Preprocessor took 24.54ms. Allocated memory is still 190.8MB. Free memory was 107.4MB in the beginning and 106.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:21:49,812 INFO L158 Benchmark]: RCFGBuilder took 181.30ms. Allocated memory is still 190.8MB. Free memory was 106.0MB in the beginning and 156.0MB in the end (delta: -50.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-09 15:21:49,812 INFO L158 Benchmark]: BuchiAutomizer took 3969.74ms. Allocated memory was 190.8MB in the beginning and 299.9MB in the end (delta: 109.1MB). Free memory was 156.0MB in the beginning and 193.0MB in the end (delta: -36.9MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2024-11-09 15:21:49,812 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 299.9MB. Free memory is still 193.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:21:49,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 190.8MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.33ms. Allocated memory is still 190.8MB. Free memory was 119.8MB in the beginning and 108.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.17ms. Allocated memory is still 190.8MB. Free memory was 108.7MB in the beginning and 107.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.54ms. Allocated memory is still 190.8MB. Free memory was 107.4MB in the beginning and 106.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 181.30ms. Allocated memory is still 190.8MB. Free memory was 106.0MB in the beginning and 156.0MB in the end (delta: -50.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3969.74ms. Allocated memory was 190.8MB in the beginning and 299.9MB in the end (delta: 109.1MB). Free memory was 156.0MB in the beginning and 193.0MB in the end (delta: -36.9MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 299.9MB. Free memory is still 193.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * y) + x) and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 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, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 36 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax155 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf95 smp100 dnf150 smp100 tf103 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 8 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-09 15:21:49,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-09 15:21:50,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE