./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-assume.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d 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-assume.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 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:54:43,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:54:43,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:54:43,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:54:43,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:54:43,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:54:43,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:54:43,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:54:43,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:54:43,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:54:43,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:54:43,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:54:43,131 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:54:43,132 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:54:43,132 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:54:43,132 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:54:43,133 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:54:43,133 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:54:43,133 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:54:43,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:54:43,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:54:43,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:54:43,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:54:43,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:54:43,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:54:43,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:54:43,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:54:43,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:54:43,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:54:43,138 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:54:43,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:54:43,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:54:43,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:54:43,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:54:43,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:54:43,140 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:54:43,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 [2024-10-13 16:54:43,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:54:43,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:54:43,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:54:43,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:54:43,415 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:54:43,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-assume.i [2024-10-13 16:54:44,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:54:45,080 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:54:45,080 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-assume.i [2024-10-13 16:54:45,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40985d8a5/43d6f9fb7ca044c48febb6f69271f595/FLAG945a9d914 [2024-10-13 16:54:45,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40985d8a5/43d6f9fb7ca044c48febb6f69271f595 [2024-10-13 16:54:45,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:54:45,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:54:45,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:54:45,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:54:45,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:54:45,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbdb5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:54:45,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:54:45,503 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:54:45,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:54:45,575 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:54:45,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45 WrapperNode [2024-10-13 16:54:45,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:54:45,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:54:45,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:54:45,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:54:45,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,617 INFO L138 Inliner]: procedures = 110, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-13 16:54:45,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:54:45,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:54:45,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:54:45,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:54:45,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,639 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:54:45,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:54:45,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:54:45,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:54:45,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:54:45,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (1/1) ... [2024-10-13 16:54:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:45,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:45,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:45,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-13 16:54:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:54:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:54:45,816 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:54:45,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:54:45,887 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-13 16:54:45,887 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:54:45,896 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:54:45,897 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 16:54:45,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45 BoogieIcfgContainer [2024-10-13 16:54:45,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:54:45,898 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:54:45,898 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:54:45,902 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:54:45,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,903 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:54:45" (1/3) ... [2024-10-13 16:54:45,904 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f38cadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,904 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:54:45" (2/3) ... [2024-10-13 16:54:45,905 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f38cadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:54:45, skipping insertion in model container [2024-10-13 16:54:45,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:54:45,905 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45" (3/3) ... [2024-10-13 16:54:45,907 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-assume.i [2024-10-13 16:54:45,959 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:54:45,959 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:54:45,959 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:54:45,959 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:54:45,959 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:54:45,959 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:54:45,959 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:54:45,959 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:54:45,963 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) [2024-10-13 16:54:45,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:45,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:45,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:45,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 16:54:45,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:54:45,982 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:54:45,982 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) [2024-10-13 16:54:45,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:45,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:45,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:45,984 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 16:54:45,984 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:54:45,991 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L535true assume !!(main_~a~0#1 > 0); 8#L536-1true [2024-10-13 16:54:45,992 INFO L747 eck$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 [2024-10-13 16:54:45,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:45,998 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-10-13 16:54:46,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863130308] [2024-10-13 16:54:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,130 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 1 times [2024-10-13 16:54:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013484761] [2024-10-13 16:54:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash 889575254, now seen corresponding path program 1 times [2024-10-13 16:54:46,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:46,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065084721] [2024-10-13 16:54:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:46,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:46,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:46,331 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:46,332 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:46,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:46,332 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:46,332 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:46,333 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,333 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:46,333 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:46,333 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2024-10-13 16:54:46,333 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:46,333 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:46,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,481 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:46,482 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:46,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:46,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-13 16:54:46,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:46,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:46,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-13 16:54:46,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,520 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:46,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-13 16:54:46,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:46,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:46,556 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:54:46,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:46,563 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:46,563 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:46,563 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:46,563 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:46,563 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:54:46,564 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,564 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:46,564 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:46,564 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2024-10-13 16:54:46,564 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:46,564 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:46,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:46,662 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:46,667 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:54:46,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:46,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-13 16:54:46,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:54:46,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:54:46,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:54:46,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:54:46,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:54:46,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:54:46,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:54:46,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:54:46,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:54:46,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:54:46,693 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:54:46,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:46,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:46,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:46,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-13 16:54:46,777 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:54:46,778 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:54:46,778 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:54:46,779 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 [] [2024-10-13 16:54:46,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-13 16:54:46,793 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:54:46,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:46,849 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:54:46,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:46,946 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 [2024-10-13 16:54:46,949 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) [2024-10-13 16:54:46,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-13 16:54:47,070 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. [2024-10-13 16:54:47,074 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 [2024-10-13 16:54:47,079 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) [2024-10-13 16:54:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2024-10-13 16:54:47,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-13 16:54:47,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-13 16:54:47,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-13 16:54:47,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2024-10-13 16:54:47,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:47,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 22 states and 30 transitions. [2024-10-13 16:54:47,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-13 16:54:47,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-13 16:54:47,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2024-10-13 16:54:47,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:54:47,091 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2024-10-13 16:54:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2024-10-13 16:54:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2024-10-13 16:54:47,113 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) [2024-10-13 16:54:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-10-13 16:54:47,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-13 16:54:47,115 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-13 16:54:47,115 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 16:54:47,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-10-13 16:54:47,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:47,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:47,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:47,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-13 16:54:47,116 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-13 16:54:47,117 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 [2024-10-13 16:54:47,117 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 [2024-10-13 16:54:47,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2024-10-13 16:54:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778405301] [2024-10-13 16:54:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:47,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1573111, now seen corresponding path program 1 times [2024-10-13 16:54:47,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971552154] [2024-10-13 16:54:47,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:47,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,141 INFO L85 PathProgramCache]: Analyzing trace with hash 183382882, now seen corresponding path program 1 times [2024-10-13 16:54:47,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421506293] [2024-10-13 16:54:47,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:47,202 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:47,202 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:47,202 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:47,202 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:47,202 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:47,202 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,202 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:47,202 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:47,202 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Loop [2024-10-13 16:54:47,202 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:47,202 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:47,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,291 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:47,291 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:47,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:47,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-13 16:54:47,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:47,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:47,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-13 16:54:47,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:47,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:47,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-13 16:54:47,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:47,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:47,431 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:54:47,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:47,438 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:47,438 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:47,438 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:47,438 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:47,438 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:54:47,438 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,438 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:47,438 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:47,438 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Loop [2024-10-13 16:54:47,438 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:47,438 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:47,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,457 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:47,524 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:47,525 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:54:47,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:47,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:47,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-13 16:54:47,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:54:47,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:54:47,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:54:47,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:54:47,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:54:47,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:54:47,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:54:47,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:54:47,602 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:54:47,607 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:54:47,607 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:54:47,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:47,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:47,609 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:47,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-13 16:54:47,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:54:47,611 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:54:47,611 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:54:47,612 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 [] [2024-10-13 16:54:47,625 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 [2024-10-13 16:54:47,626 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:54:47,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:47,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:54:47,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:47,656 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 16:54:47,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:47,689 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 [2024-10-13 16:54:47,689 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) [2024-10-13 16:54:47,735 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. [2024-10-13 16:54:47,737 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 [2024-10-13 16:54:47,737 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) [2024-10-13 16:54:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-10-13 16:54:47,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-13 16:54:47,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2024-10-13 16:54:47,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2024-10-13 16:54:47,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:47,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions. [2024-10-13 16:54:47,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:47,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 49 transitions. [2024-10-13 16:54:47,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-13 16:54:47,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-13 16:54:47,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2024-10-13 16:54:47,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:54:47,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-10-13 16:54:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2024-10-13 16:54:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-10-13 16:54:47,745 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) [2024-10-13 16:54:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-10-13 16:54:47,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-10-13 16:54:47,745 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-10-13 16:54:47,746 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 16:54:47,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 48 transitions. [2024-10-13 16:54:47,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:47,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:47,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:47,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-13 16:54:47,747 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-13 16:54:47,749 INFO L745 eck$LassoCheckResult]: Stem: 226#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 227#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 214#L535 assume !!(main_~a~0#1 > 0); 215#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 242#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 228#L538-2 [2024-10-13 16:54:47,749 INFO L747 eck$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 [2024-10-13 16:54:47,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash 28695977, now seen corresponding path program 1 times [2024-10-13 16:54:47,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599589618] [2024-10-13 16:54:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:47,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 53473440, now seen corresponding path program 1 times [2024-10-13 16:54:47,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387188795] [2024-10-13 16:54:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:47,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash 139090936, now seen corresponding path program 1 times [2024-10-13 16:54:47,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:47,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093678611] [2024-10-13 16:54:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:47,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:47,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:48,005 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:48,005 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:48,006 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:48,006 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:48,006 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:48,006 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,006 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:48,006 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:48,006 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Loop [2024-10-13 16:54:48,007 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:48,007 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:48,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,114 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-13 16:54:48,353 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:48,353 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:48,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,357 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-13 16:54:48,375 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,375 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: [] [2024-10-13 16:54:48,391 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 [2024-10-13 16:54:48,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,394 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-13 16:54:48,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,418 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,419 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: [] [2024-10-13 16:54:48,434 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 [2024-10-13 16:54:48,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,436 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-13 16:54:48,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:48,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,469 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-13 16:54:48,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:48,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,579 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,579 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Generalized eigenvectors: [{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}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-10-13 16:54:48,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:48,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-13 16:54:48,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,611 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,611 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: [] [2024-10-13 16:54:48,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:48,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,623 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-13 16:54:48,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-13 16:54:48,662 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,663 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: [] [2024-10-13 16:54:48,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:48,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:48,679 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:48,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-13 16:54:48,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:48,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:48,712 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:48,712 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: [] [2024-10-13 16:54:48,723 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 [2024-10-13 16:54:48,753 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:48,753 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:48,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:48,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:48,754 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:48,754 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:48,754 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:48,754 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:48,754 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Lasso [2024-10-13 16:54:48,754 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:48,754 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:48,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:48,889 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-13 16:54:49,088 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:49,088 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:49,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:49,093 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:49,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-13 16:54:49,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:49,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:49,108 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:49,108 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: [] [2024-10-13 16:54:49,118 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 [2024-10-13 16:54:49,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:49,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:49,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-13 16:54:49,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:49,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:49,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-13 16:54:49,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:49,145 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:49,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-13 16:54:49,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:49,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:49,282 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:54:49,287 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 [2024-10-13 16:54:49,287 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:49,287 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:49,287 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:49,287 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:49,287 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:54:49,287 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,287 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:49,287 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:49,288 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Lasso [2024-10-13 16:54:49,288 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:49,288 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:49,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:49,407 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-10-13 16:54:49,594 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:49,594 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:54:49,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:49,597 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:49,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-13 16:54:49,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:54:49,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:54:49,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:54:49,613 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-10-13 16:54:49,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:54:49,650 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-10-13 16:54:49,650 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-10-13 16:54:49,725 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:54:49,790 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2024-10-13 16:54:49,791 INFO L444 ModelExtractionUtils]: 13 out of 28 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-10-13 16:54:49,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:49,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:49,792 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:49,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-13 16:54:49,793 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:54:49,808 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-10-13 16:54:49,809 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:54:49,809 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] [2024-10-13 16:54:49,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:49,825 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-13 16:54:49,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:49,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:54:49,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:49,880 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:54:49,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:54:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:49,950 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 [2024-10-13 16:54:49,950 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) [2024-10-13 16:54:50,035 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. [2024-10-13 16:54:50,037 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 [2024-10-13 16:54:50,038 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) [2024-10-13 16:54:50,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2024-10-13 16:54:50,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 5 letters. [2024-10-13 16:54:50,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:50,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 10 letters. Loop has 5 letters. [2024-10-13 16:54:50,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:50,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 5 letters. Loop has 10 letters. [2024-10-13 16:54:50,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:54:50,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 181 transitions. [2024-10-13 16:54:50,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:50,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 53 states and 72 transitions. [2024-10-13 16:54:50,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-13 16:54:50,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-13 16:54:50,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 72 transitions. [2024-10-13 16:54:50,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:54:50,044 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-10-13 16:54:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 72 transitions. [2024-10-13 16:54:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2024-10-13 16:54:50,046 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) [2024-10-13 16:54:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2024-10-13 16:54:50,047 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-10-13 16:54:50,047 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2024-10-13 16:54:50,047 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 16:54:50,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2024-10-13 16:54:50,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:54:50,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:54:50,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:54:50,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-13 16:54:50,048 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-13 16:54:50,048 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 [2024-10-13 16:54:50,048 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 [2024-10-13 16:54:50,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1807029114, now seen corresponding path program 2 times [2024-10-13 16:54:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813542743] [2024-10-13 16:54:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:54:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:54:50,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:54:50,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813542743] [2024-10-13 16:54:50,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813542743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:54:50,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:54:50,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:54:50,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830412111] [2024-10-13 16:54:50,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:54:50,122 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-13 16:54:50,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:54:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash 48824520, now seen corresponding path program 2 times [2024-10-13 16:54:50,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:54:50,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163623086] [2024-10-13 16:54:50,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:54:50,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:54:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:50,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:54:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:54:50,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:54:50,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-13 16:54:50,273 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:54:50,273 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:54:50,273 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:54:50,273 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:54:50,273 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:54:50,273 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,273 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:54:50,273 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:54:50,273 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration4_Loop [2024-10-13 16:54:50,273 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:54:50,273 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:54:50,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:54:50,356 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-10-13 16:54:50,472 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:54:50,472 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:54:50,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,474 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-13 16:54:50,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,493 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,493 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: [] [2024-10-13 16:54:50,503 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 [2024-10-13 16:54:50,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,504 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-13 16:54:50,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,517 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,517 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: [] [2024-10-13 16:54:50,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-13 16:54:50,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,529 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-13 16:54:50,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:50,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,553 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-13 16:54:50,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:54:50,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,696 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,696 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-2} 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, 1] [2024-10-13 16:54:50,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,708 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-13 16:54:50,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,727 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,727 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: [] [2024-10-13 16:54:50,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:50,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,739 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-13 16:54:50,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,757 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,758 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: [] [2024-10-13 16:54:50,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:50,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:54:50,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:54:50,769 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:54:50,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-13 16:54:50,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:54:50,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:54:50,782 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:54:50,782 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: [] [2024-10-13 16:54:50,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-13 16:54:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:54:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:54:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:54:50,796 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) [2024-10-13 16:54:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 16:54:50,806 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2024-10-13 16:54:50,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 8 transitions. [2024-10-13 16:54:50,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:54:50,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2024-10-13 16:54:50,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:54:50,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:54:50,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:54:50,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:54:50,807 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:50,807 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:54:50,808 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:54:50,808 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 16:54:50,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 16:54:50,809 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:54:50,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 16:54:50,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:54:50 BoogieIcfgContainer [2024-10-13 16:54:50,820 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:54:50,820 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:54:50,820 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:54:50,821 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:54:50,821 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:54:45" (3/4) ... [2024-10-13 16:54:50,823 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 16:54:50,824 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:54:50,825 INFO L158 Benchmark]: Toolchain (without parser) took 5711.23ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 79.7MB in the beginning and 139.6MB in the end (delta: -59.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,825 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 151.0MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:54:50,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.35ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 79.5MB in the beginning and 178.4MB in the end (delta: -98.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.16ms. Allocated memory is still 211.8MB. Free memory was 178.4MB in the beginning and 176.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,826 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 211.8MB. Free memory was 176.2MB in the beginning and 175.2MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:54:50,827 INFO L158 Benchmark]: RCFGBuilder took 240.62ms. Allocated memory is still 211.8MB. Free memory was 175.2MB in the beginning and 163.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,827 INFO L158 Benchmark]: BuchiAutomizer took 4921.87ms. Allocated memory is still 211.8MB. Free memory was 163.7MB in the beginning and 140.7MB in the end (delta: 23.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,827 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 211.8MB. Free memory was 140.7MB in the beginning and 139.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:54:50,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 151.0MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.35ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 79.5MB in the beginning and 178.4MB in the end (delta: -98.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.16ms. Allocated memory is still 211.8MB. Free memory was 178.4MB in the beginning and 176.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 211.8MB. Free memory was 176.2MB in the beginning and 175.2MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 240.62ms. Allocated memory is still 211.8MB. Free memory was 175.2MB in the beginning and 163.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4921.87ms. Allocated memory is still 211.8MB. Free memory was 163.7MB in the beginning and 140.7MB in the end (delta: 23.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 211.8MB. Free memory was 140.7MB in the beginning and 139.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 4.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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: 214ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 16:54:50,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE