./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01.i -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 e0082974c4a0ccb2e3b0423062099713be2e4fbaae442bc0ff779d0ca2c39bca --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:08:09,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:08:09,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-20 22:08:09,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:08:09,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:08:09,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:08:09,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:08:09,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:08:09,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:08:09,145 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:08:09,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:08:09,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:08:09,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:08:09,147 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:08:09,149 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:08:09,149 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:08:09,150 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:08:09,150 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:08:09,154 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:08:09,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:08:09,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:08:09,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:08:09,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:08:09,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:08:09,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:08:09,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:08:09,156 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:08:09,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:08:09,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:08:09,157 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:08:09,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:08:09,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:08:09,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:08:09,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:08:09,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:08:09,159 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:08:09,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0082974c4a0ccb2e3b0423062099713be2e4fbaae442bc0ff779d0ca2c39bca [2024-11-20 22:08:09,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:08:09,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:08:09,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:08:09,448 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:08:09,449 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:08:09,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01.i [2024-11-20 22:08:10,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:08:11,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:08:11,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01.i [2024-11-20 22:08:11,170 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abb4aba4/b98e6ba358b5492cb9c3fedb7a3cb4e3/FLAG1828f436d [2024-11-20 22:08:11,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abb4aba4/b98e6ba358b5492cb9c3fedb7a3cb4e3 [2024-11-20 22:08:11,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:08:11,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:08:11,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:08:11,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:08:11,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:08:11,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42693cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11, skipping insertion in model container [2024-11-20 22:08:11,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:08:11,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:08:11,524 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:08:11,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:08:11,597 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:08:11,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11 WrapperNode [2024-11-20 22:08:11,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:08:11,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:08:11,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:08:11,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:08:11,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,639 INFO L138 Inliner]: procedures = 110, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-20 22:08:11,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:08:11,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:08:11,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:08:11,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:08:11,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,685 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:08:11,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:08:11,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:08:11,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:08:11,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:08:11,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (1/1) ... [2024-11-20 22:08:11,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:11,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:11,753 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) [2024-11-20 22:08:11,755 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 [2024-11-20 22:08:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:08:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:08:11,888 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:08:11,891 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:08:11,981 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-20 22:08:11,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:08:11,993 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:08:11,994 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 22:08:11,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11 BoogieIcfgContainer [2024-11-20 22:08:11,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:08:11,995 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:08:11,995 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:08:11,999 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:08:11,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:12,000 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:08:11" (1/3) ... [2024-11-20 22:08:12,000 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5239b10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:08:12, skipping insertion in model container [2024-11-20 22:08:12,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:12,001 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:11" (2/3) ... [2024-11-20 22:08:12,001 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5239b10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:08:12, skipping insertion in model container [2024-11-20 22:08:12,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:08:12,001 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11" (3/3) ... [2024-11-20 22:08:12,004 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-01.i [2024-11-20 22:08:12,058 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:08:12,058 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:08:12,058 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:08:12,058 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:08:12,059 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:08:12,059 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:08:12,059 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:08:12,060 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:08:12,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-11-20 22:08:12,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:12,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:12,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:12,088 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:08:12,088 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:08:12,088 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:08:12,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-11-20 22:08:12,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:12,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:12,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:12,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:08:12,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:08:12,100 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L535true assume !!(main_~a~0#1 > 0); 8#L536-1true [2024-11-20 22:08:12,100 INFO L747 eck$LassoCheckResult]: Loop: 8#L536-1true assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 12#L538true assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise6#1 := 0; 7#L538-5true main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 8#L536-1true [2024-11-20 22:08:12,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-20 22:08:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894652756] [2024-11-20 22:08:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 1 times [2024-11-20 22:08:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608394941] [2024-11-20 22:08:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash 889575254, now seen corresponding path program 1 times [2024-11-20 22:08:12,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:12,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55861809] [2024-11-20 22:08:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:12,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:12,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:12,412 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:12,412 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:12,412 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:12,413 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:12,413 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:12,413 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,413 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:12,413 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:12,413 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration1_Loop [2024-11-20 22:08:12,414 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:12,414 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:12,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,589 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:12,590 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:12,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,595 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) [2024-11-20 22:08:12,596 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 [2024-11-20 22:08:12,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:12,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,618 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 [2024-11-20 22:08:12,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,621 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) [2024-11-20 22:08:12,621 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 [2024-11-20 22:08:12,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:12,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:12,650 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:12,655 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 [2024-11-20 22:08:12,656 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:12,656 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:12,656 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:12,656 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:12,656 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:12,657 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,657 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:12,657 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:12,657 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration1_Loop [2024-11-20 22:08:12,657 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:12,657 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:12,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:12,784 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:12,793 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,801 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) [2024-11-20 22:08:12,804 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 [2024-11-20 22:08:12,805 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 [2024-11-20 22:08:12,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:12,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:12,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:12,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:12,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:12,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:12,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:12,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:12,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:08:12,828 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:08:12,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:12,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:12,832 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) [2024-11-20 22:08:12,833 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 [2024-11-20 22:08:12,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:12,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:12,836 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:12,836 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 [] [2024-11-20 22:08:12,844 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 [2024-11-20 22:08:12,847 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:12,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:12,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:12,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:12,899 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:08:12,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:12,977 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-20 22:08:12,978 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-11-20 22:08:13,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 45 states and 64 transitions. Complement of second has 10 states. [2024-11-20 22:08:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-20 22:08:13,067 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) [2024-11-20 22:08:13,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2024-11-20 22:08:13,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-20 22:08:13,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-20 22:08:13,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-20 22:08:13,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2024-11-20 22:08:13,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:13,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 22 states and 30 transitions. [2024-11-20 22:08:13,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-20 22:08:13,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-20 22:08:13,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2024-11-20 22:08:13,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:13,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2024-11-20 22:08:13,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2024-11-20 22:08:13,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2024-11-20 22:08:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2024-11-20 22:08:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-11-20 22:08:13,105 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-20 22:08:13,106 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-11-20 22:08:13,106 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:08:13,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-11-20 22:08:13,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:13,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:13,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:13,107 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-20 22:08:13,107 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-20 22:08:13,107 INFO L745 eck$LassoCheckResult]: Stem: 119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 111#L535 assume !!(main_~a~0#1 > 0); 112#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 116#L538 [2024-11-20 22:08:13,107 INFO L747 eck$LassoCheckResult]: Loop: 116#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 121#L538-2 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise6#1 := main_~x~0#1; 108#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 113#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 116#L538 [2024-11-20 22:08:13,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2024-11-20 22:08:13,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749350580] [2024-11-20 22:08:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1573111, now seen corresponding path program 1 times [2024-11-20 22:08:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70474928] [2024-11-20 22:08:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash 183382882, now seen corresponding path program 1 times [2024-11-20 22:08:13,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092958307] [2024-11-20 22:08:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,183 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,183 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,183 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,183 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,183 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:13,183 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,183 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,183 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,183 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration2_Loop [2024-11-20 22:08:13,183 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,183 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,287 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:13,289 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:13,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:08:13,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-20 22:08:13,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:13,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:13,317 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 [2024-11-20 22:08:13,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,319 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) [2024-11-20 22:08:13,321 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 [2024-11-20 22:08:13,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:13,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:13,409 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:13,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-20 22:08:13,416 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,416 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,416 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,416 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,416 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:13,416 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,416 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,416 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,416 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration2_Loop [2024-11-20 22:08:13,416 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,416 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,481 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 [2024-11-20 22:08:13,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,547 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:13,548 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:13,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,552 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) [2024-11-20 22:08:13,553 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 [2024-11-20 22:08:13,555 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 [2024-11-20 22:08:13,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:13,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:08:13,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:13,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:08:13,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:13,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:08:13,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:08:13,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:13,574 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-20 22:08:13,575 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:08:13,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:13,577 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) [2024-11-20 22:08:13,579 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 [2024-11-20 22:08:13,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:13,580 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:08:13,580 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:13,580 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-20 22:08:13,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-20 22:08:13,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:08:13,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:08:13,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:13,617 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 22:08:13,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:13,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-20 22:08:13,652 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-20 22:08:13,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 41 states and 54 transitions. Complement of second has 8 states. [2024-11-20 22:08:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-20 22:08:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-20 22:08:13,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-20 22:08:13,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-20 22:08:13,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-20 22:08:13,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2024-11-20 22:08:13,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:13,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions. [2024-11-20 22:08:13,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:13,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 49 transitions. [2024-11-20 22:08:13,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-20 22:08:13,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-20 22:08:13,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2024-11-20 22:08:13,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:13,699 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-20 22:08:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2024-11-20 22:08:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-20 22:08:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 35 states have internal predecessors, (48), 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) [2024-11-20 22:08:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-20 22:08:13,702 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-20 22:08:13,703 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-20 22:08:13,703 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:08:13,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 48 transitions. [2024-11-20 22:08:13,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:13,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:13,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:13,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:13,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:13,705 INFO L745 eck$LassoCheckResult]: Stem: 226#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 227#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 214#L535 assume !!(main_~a~0#1 > 0); 215#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 242#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 228#L538-2 [2024-11-20 22:08:13,705 INFO L747 eck$LassoCheckResult]: Loop: 228#L538-2 assume !(main_~x~0#1 == main_~a~0#1); 216#L538-4 havoc main_#t~bitwise6#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise6#1 >= -2147483648; 217#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 220#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 223#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 228#L538-2 [2024-11-20 22:08:13,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 28695977, now seen corresponding path program 1 times [2024-11-20 22:08:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287140797] [2024-11-20 22:08:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 53473440, now seen corresponding path program 1 times [2024-11-20 22:08:13,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720279754] [2024-11-20 22:08:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash 139090936, now seen corresponding path program 1 times [2024-11-20 22:08:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:13,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550880121] [2024-11-20 22:08:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:13,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:13,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:13,961 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:13,961 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:13,961 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:13,961 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:13,962 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:13,962 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:13,962 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:13,962 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:13,962 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Loop [2024-11-20 22:08:13,962 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:13,962 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:13,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:13,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,079 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:14,304 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:14,304 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,307 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) [2024-11-20 22:08:14,308 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 [2024-11-20 22:08:14,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,324 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,325 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:14,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,336 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) [2024-11-20 22:08:14,339 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 [2024-11-20 22:08:14,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,364 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,364 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_5=1} Honda state: {v_rep~unnamed0~0~P_PID_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-20 22:08:14,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,375 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) [2024-11-20 22:08:14,379 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 [2024-11-20 22:08:14,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,409 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 [2024-11-20 22:08:14,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,411 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) [2024-11-20 22:08:14,411 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 [2024-11-20 22:08:14,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:14,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,492 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,493 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [15, 1, 15] Nus: [0, 0] [2024-11-20 22:08:14,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-20 22:08:14,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,502 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) [2024-11-20 22:08:14,503 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 [2024-11-20 22:08:14,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,521 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,521 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_5=2} Honda state: {v_rep~unnamed0~0~P_PGID_5=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,527 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 [2024-11-20 22:08:14,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,530 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) [2024-11-20 22:08:14,530 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 [2024-11-20 22:08:14,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,549 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,549 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_5=0} Honda state: {v_rep~unnamed0~0~P_ALL_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:14,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:14,558 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) [2024-11-20 22:08:14,560 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 [2024-11-20 22:08:14,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:14,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:14,576 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:14,576 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise6#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:14,583 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 [2024-11-20 22:08:14,614 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:14,614 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:14,614 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:14,614 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:14,614 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:14,614 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:14,614 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:14,614 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:14,614 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Lasso [2024-11-20 22:08:14,614 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:14,614 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:14,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:14,769 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:14,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:15,002 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:15,002 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:15,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,005 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) [2024-11-20 22:08:15,006 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 [2024-11-20 22:08:15,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:15,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:15,018 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:15,018 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:15,024 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 [2024-11-20 22:08:15,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,025 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) [2024-11-20 22:08:15,027 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 [2024-11-20 22:08:15,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:15,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:15,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,046 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) [2024-11-20 22:08:15,047 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 [2024-11-20 22:08:15,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:15,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:15,173 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:08:15,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:15,180 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:15,180 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:15,180 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:15,180 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:15,180 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:08:15,180 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,181 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:15,181 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:15,181 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration3_Lasso [2024-11-20 22:08:15,181 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:15,181 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:15,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:15,301 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-20 22:08:15,502 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:15,502 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:08:15,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,505 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) [2024-11-20 22:08:15,507 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 [2024-11-20 22:08:15,508 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 [2024-11-20 22:08:15,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:08:15,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:08:15,520 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-20 22:08:15,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:08:15,564 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-20 22:08:15,564 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-20 22:08:15,640 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:08:15,714 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2024-11-20 22:08:15,714 INFO L444 ModelExtractionUtils]: 13 out of 28 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-20 22:08:15,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:15,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:15,716 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) [2024-11-20 22:08:15,718 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 [2024-11-20 22:08:15,719 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:08:15,733 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-20 22:08:15,734 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:08:15,734 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-11-20 22:08:15,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:15,744 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-20 22:08:15,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:15,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:08:15,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:15,802 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 22:08:15,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:08:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:15,875 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 4 loop predicates [2024-11-20 22:08:15,875 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 48 transitions. cyclomatic complexity: 16 Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-11-20 22:08:15,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 48 transitions. cyclomatic complexity: 16. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 126 states and 181 transitions. Complement of second has 12 states. [2024-11-20 22:08:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-20 22:08:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-11-20 22:08:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2024-11-20 22:08:15,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 5 letters. [2024-11-20 22:08:15,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:15,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-20 22:08:15,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:15,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 10 letters. [2024-11-20 22:08:15,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:08:15,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 181 transitions. [2024-11-20 22:08:15,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:15,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 53 states and 72 transitions. [2024-11-20 22:08:15,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-20 22:08:15,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-20 22:08:15,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 72 transitions. [2024-11-20 22:08:15,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:08:15,973 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-11-20 22:08:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 72 transitions. [2024-11-20 22:08:15,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2024-11-20 22:08:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 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) [2024-11-20 22:08:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2024-11-20 22:08:15,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-11-20 22:08:15,976 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-11-20 22:08:15,976 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-20 22:08:15,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2024-11-20 22:08:15,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:08:15,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:08:15,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:08:15,986 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-11-20 22:08:15,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-20 22:08:15,988 INFO L745 eck$LassoCheckResult]: Stem: 462#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 463#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 455#L535 assume !!(main_~a~0#1 > 0); 456#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 460#L538 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise6#1 := 0; 482#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 479#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 471#L538 [2024-11-20 22:08:15,988 INFO L747 eck$LassoCheckResult]: Loop: 471#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 464#L538-2 assume !(main_~x~0#1 == main_~a~0#1); 451#L538-4 havoc main_#t~bitwise6#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise6#1 >= -2147483648; 452#L538-5 main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1; 457#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 471#L538 [2024-11-20 22:08:15,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:15,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1807029114, now seen corresponding path program 2 times [2024-11-20 22:08:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:15,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340035990] [2024-11-20 22:08:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:15,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:15,994 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 [2024-11-20 22:08:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:08:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:08:16,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:08:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340035990] [2024-11-20 22:08:16,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340035990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:08:16,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:08:16,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:08:16,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265316141] [2024-11-20 22:08:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:08:16,051 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-20 22:08:16,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:08:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 48824520, now seen corresponding path program 2 times [2024-11-20 22:08:16,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:08:16,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309561843] [2024-11-20 22:08:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:08:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:08:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:08:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:08:16,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:08:16,203 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:08:16,203 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:08:16,203 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:08:16,203 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:08:16,203 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:08:16,204 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,204 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:08:16,204 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:08:16,204 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-01.i_Iteration4_Loop [2024-11-20 22:08:16,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:08:16,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:08:16,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:08:16,295 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-20 22:08:16,425 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:08:16,425 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:08:16,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,428 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) [2024-11-20 22:08:16,429 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 [2024-11-20 22:08:16,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,447 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,447 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_8=0} Honda state: {v_rep~unnamed0~0~P_ALL_8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-20 22:08:16,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,455 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) [2024-11-20 22:08:16,455 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 [2024-11-20 22:08:16,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,467 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,467 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise6#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,473 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 [2024-11-20 22:08:16,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,476 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) [2024-11-20 22:08:16,477 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 [2024-11-20 22:08:16,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-20 22:08:16,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,495 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) [2024-11-20 22:08:16,496 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 [2024-11-20 22:08:16,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:08:16,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,633 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,633 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [2, 1, 0] Nus: [0, 0] [2024-11-20 22:08:16,639 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 [2024-11-20 22:08:16,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,641 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) [2024-11-20 22:08:16,642 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 [2024-11-20 22:08:16,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,660 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,660 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_8=1} Honda state: {v_rep~unnamed0~0~P_PID_8=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-20 22:08:16,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,667 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) [2024-11-20 22:08:16,668 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 [2024-11-20 22:08:16,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,686 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,687 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_8=2} Honda state: {v_rep~unnamed0~0~P_PGID_8=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,692 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 [2024-11-20 22:08:16,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:08:16,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:08:16,694 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) [2024-11-20 22:08:16,695 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 [2024-11-20 22:08:16,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:08:16,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:08:16,706 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:08:16,707 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:08:16,712 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 [2024-11-20 22:08:16,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:08:16,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:08:16,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:08:16,716 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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) [2024-11-20 22:08:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:08:16,726 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2024-11-20 22:08:16,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 8 transitions. [2024-11-20 22:08:16,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:08:16,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2024-11-20 22:08:16,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:08:16,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:08:16,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:08:16,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:08:16,727 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:16,727 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:08:16,728 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:08:16,728 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-20 22:08:16,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-20 22:08:16,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:08:16,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-20 22:08:16,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:08:16 BoogieIcfgContainer [2024-11-20 22:08:16,735 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:08:16,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:08:16,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:08:16,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:08:16,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:11" (3/4) ... [2024-11-20 22:08:16,738 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 22:08:16,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:08:16,739 INFO L158 Benchmark]: Toolchain (without parser) took 5554.60ms. Allocated memory was 157.3MB in the beginning and 216.0MB in the end (delta: 58.7MB). Free memory was 82.6MB in the beginning and 140.4MB in the end (delta: -57.8MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,739 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:08:16,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.08ms. Allocated memory is still 157.3MB. Free memory was 82.3MB in the beginning and 64.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.25ms. Allocated memory is still 157.3MB. Free memory was 63.8MB in the beginning and 62.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,740 INFO L158 Benchmark]: Boogie Preprocessor took 70.80ms. Allocated memory is still 157.3MB. Free memory was 62.3MB in the beginning and 127.1MB in the end (delta: -64.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,741 INFO L158 Benchmark]: RCFGBuilder took 277.94ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 117.9MB in the end (delta: 9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,741 INFO L158 Benchmark]: BuchiAutomizer took 4739.89ms. Allocated memory was 157.3MB in the beginning and 216.0MB in the end (delta: 58.7MB). Free memory was 117.4MB in the beginning and 140.4MB in the end (delta: -23.0MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-11-20 22:08:16,741 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 216.0MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:08:16,743 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.08ms. Allocated memory is still 157.3MB. Free memory was 82.3MB in the beginning and 64.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.25ms. Allocated memory is still 157.3MB. Free memory was 63.8MB in the beginning and 62.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.80ms. Allocated memory is still 157.3MB. Free memory was 62.3MB in the beginning and 127.1MB in the end (delta: -64.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.94ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 117.9MB in the end (delta: 9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4739.89ms. Allocated memory was 157.3MB in the beginning and 216.0MB in the end (delta: 58.7MB). Free memory was 117.4MB in the beginning and 140.4MB in the end (delta: -23.0MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 216.0MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function a and consists of 5 locations. One deterministic module has affine ranking function a and consists of 8 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 22 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital37 mio100 ax175 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp97 dnf661 smp55 tf105 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 231ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-20 22:08:16,761 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