./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/and-02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:00:25,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:00:25,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:00:25,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:00:25,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:00:25,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:00:25,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:00:25,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:00:25,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:00:25,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:00:25,765 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:00:25,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:00:25,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:00:25,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:00:25,769 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:00:25,770 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:00:25,770 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:00:25,770 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:00:25,774 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:00:25,774 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:00:25,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:00:25,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:00:25,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:00:25,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:00:25,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:00:25,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:00:25,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:00:25,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:00:25,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:00:25,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:00:25,777 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:00:25,777 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:00:25,777 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:00:25,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:00:25,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:00:25,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:00:25,779 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:00:25,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a313e2806dc0cf0a3222f57f0bb28c1f6fdeffa87b92122e8e774cb5b3aff86c [2024-11-17 08:00:26,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:00:26,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:00:26,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:00:26,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:00:26,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:00:26,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-02.c [2024-11-17 08:00:27,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:00:27,709 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:00:27,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-02.c [2024-11-17 08:00:27,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5551b5c/5093bfa1e14a4d86b497f7f6f60cbaef/FLAGd26334881 [2024-11-17 08:00:28,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5551b5c/5093bfa1e14a4d86b497f7f6f60cbaef [2024-11-17 08:00:28,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:00:28,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:00:28,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:28,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:00:28,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:00:28,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77749e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28, skipping insertion in model container [2024-11-17 08:00:28,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:00:28,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:28,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:00:28,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:28,391 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:00:28,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28 WrapperNode [2024-11-17 08:00:28,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:28,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:28,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:00:28,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:00:28,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,415 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-11-17 08:00:28,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:28,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:00:28,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:00:28,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:00:28,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,432 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:00:28,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,434 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:00:28,438 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:00:28,438 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:00:28,438 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:00:28,439 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:28,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:00:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:00:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:00:28,574 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:00:28,575 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:00:28,696 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-17 08:00:28,696 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:00:28,729 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:00:28,729 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:00:28,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28 BoogieIcfgContainer [2024-11-17 08:00:28,730 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:00:28,731 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:00:28,732 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:00:28,736 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:00:28,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,737 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:00:28" (1/3) ... [2024-11-17 08:00:28,738 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b7a7ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:28, skipping insertion in model container [2024-11-17 08:00:28,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,738 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (2/3) ... [2024-11-17 08:00:28,738 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b7a7ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:28, skipping insertion in model container [2024-11-17 08:00:28,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,740 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28" (3/3) ... [2024-11-17 08:00:28,741 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02.c [2024-11-17 08:00:28,814 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:00:28,814 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:00:28,814 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:00:28,814 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:00:28,815 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:00:28,815 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:00:28,815 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:00:28,815 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:00:28,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:28,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:28,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,836 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:28,836 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:28,837 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:00:28,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:28,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:28,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:28,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:28,846 INFO L745 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 2#L16true [2024-11-17 08:00:28,847 INFO L747 eck$LassoCheckResult]: Loop: 2#L16true assume true; 5#L16-1true assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 10#L18true assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2#L16true [2024-11-17 08:00:28,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1568, now seen corresponding path program 1 times [2024-11-17 08:00:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986516982] [2024-11-17 08:00:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 45642, now seen corresponding path program 1 times [2024-11-17 08:00:28,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332466667] [2024-11-17 08:00:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,002 INFO L85 PathProgramCache]: Analyzing trace with hash 46728139, now seen corresponding path program 1 times [2024-11-17 08:00:29,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173000874] [2024-11-17 08:00:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,095 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,095 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,096 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,096 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,096 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:29,096 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,096 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,097 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,097 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-17 08:00:29,097 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,097 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,209 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,210 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:29,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:00:29,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,234 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:29,234 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:29,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:00:29,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,261 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:29,262 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:29,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:00:29,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:00:29,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:29,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,349 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:29,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:00:29,355 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,355 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,356 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,356 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,356 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:29,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,356 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,356 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration1_Loop [2024-11-17 08:00:29,357 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,357 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,432 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:29,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:00:29,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:29,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,463 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:29,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:00:29,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:29,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,505 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:29,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-17 08:00:29,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:00:29,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:29,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:29,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:29,548 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:29,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-17 08:00:29,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:29,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:29,570 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:29,570 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:29,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-17 08:00:29,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:29,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,694 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:29,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 39 transitions. Complement of second has 6 states. [2024-11-17 08:00:29,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-17 08:00:29,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-17 08:00:29,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-17 08:00:29,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-17 08:00:29,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 39 transitions. [2024-11-17 08:00:29,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 18 states and 25 transitions. [2024-11-17 08:00:29,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-17 08:00:29,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-17 08:00:29,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2024-11-17 08:00:29,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:29,768 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-11-17 08:00:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2024-11-17 08:00:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2024-11-17 08:00:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-11-17 08:00:29,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-17 08:00:29,813 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-11-17 08:00:29,813 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:00:29,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-11-17 08:00:29,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:29,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:29,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:29,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:29,815 INFO L745 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 91#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 92#L16 assume true; 84#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 87#L18 assume main_~x~0#1 > 0; 89#L19-4 [2024-11-17 08:00:29,815 INFO L747 eck$LassoCheckResult]: Loop: 89#L19-4 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 86#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 80#L16 assume true; 81#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 94#L18 assume main_~x~0#1 > 0; 89#L19-4 [2024-11-17 08:00:29,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash 46728140, now seen corresponding path program 1 times [2024-11-17 08:00:29,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46221613] [2024-11-17 08:00:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash 32428460, now seen corresponding path program 1 times [2024-11-17 08:00:29,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269480202] [2024-11-17 08:00:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-17 08:00:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269480202] [2024-11-17 08:00:29,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269480202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:29,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:00:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805380266] [2024-11-17 08:00:29,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:29,950 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:00:29,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:29,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:29,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:29,953 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:29,984 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-11-17 08:00:29,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2024-11-17 08:00:29,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:29,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 24 transitions. [2024-11-17 08:00:29,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-17 08:00:29,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-17 08:00:29,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2024-11-17 08:00:29,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:29,986 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-17 08:00:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2024-11-17 08:00:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-17 08:00:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2024-11-17 08:00:29,991 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-17 08:00:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:29,994 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-17 08:00:29,994 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:00:29,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2024-11-17 08:00:29,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:29,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:29,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:29,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:29,995 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:29,996 INFO L745 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 132#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 133#L16 assume true; 125#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 128#L18 assume main_~x~0#1 > 0; 134#L19-4 [2024-11-17 08:00:29,996 INFO L747 eck$LassoCheckResult]: Loop: 134#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 136#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 127#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 121#L16 assume true; 122#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 139#L18 assume main_~x~0#1 > 0; 134#L19-4 [2024-11-17 08:00:29,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash 46728140, now seen corresponding path program 2 times [2024-11-17 08:00:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996230420] [2024-11-17 08:00:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1149888870, now seen corresponding path program 1 times [2024-11-17 08:00:30,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851581949] [2024-11-17 08:00:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,029 INFO L85 PathProgramCache]: Analyzing trace with hash -237655823, now seen corresponding path program 1 times [2024-11-17 08:00:30,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978637248] [2024-11-17 08:00:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,136 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,137 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,137 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,137 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,137 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:30,137 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,137 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,137 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,137 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-17 08:00:30,137 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,137 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,189 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,189 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:30,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,191 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-17 08:00:30,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-17 08:00:30,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,231 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-17 08:00:30,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:30,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,332 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:30,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-17 08:00:30,339 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,339 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,339 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:30,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration3_Loop [2024-11-17 08:00:30,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,390 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,390 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:30,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,393 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:00:30,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:30,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,412 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:30,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-17 08:00:30,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,430 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:00:30,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:30,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,450 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:30,458 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-17 08:00:30,458 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-17 08:00:30,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,460 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-17 08:00:30,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:30,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:30,462 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:30,463 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-17 08:00:30,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:00:30,479 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:30,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,588 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-17 08:00:30,588 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,663 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 42 states and 58 transitions. Complement of second has 10 states. [2024-11-17 08:00:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2024-11-17 08:00:30,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-17 08:00:30,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-17 08:00:30,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-17 08:00:30,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 58 transitions. [2024-11-17 08:00:30,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-11-17 08:00:30,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 58 transitions. [2024-11-17 08:00:30,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-17 08:00:30,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-11-17 08:00:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 58 transitions. [2024-11-17 08:00:30,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,671 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-17 08:00:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 58 transitions. [2024-11-17 08:00:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-17 08:00:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 35 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-11-17 08:00:30,674 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-17 08:00:30,675 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-17 08:00:30,675 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:00:30,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-11-17 08:00:30,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:30,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,677 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,677 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-11-17 08:00:30,677 INFO L745 eck$LassoCheckResult]: Stem: 259#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 260#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 261#L16 assume true; 273#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 271#L18 assume main_~x~0#1 > 0; 269#L19-4 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 262#L19 [2024-11-17 08:00:30,677 INFO L747 eck$LassoCheckResult]: Loop: 262#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 245#L16 assume true; 246#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 253#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 256#L16 assume true; 272#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 270#L18 assume main_~x~0#1 > 0; 264#L19-4 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 262#L19 [2024-11-17 08:00:30,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1448572344, now seen corresponding path program 1 times [2024-11-17 08:00:30,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208411167] [2024-11-17 08:00:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:30,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208411167] [2024-11-17 08:00:30,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208411167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:30,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:30,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:00:30,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141475826] [2024-11-17 08:00:30,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,723 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:00:30,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash 880330145, now seen corresponding path program 1 times [2024-11-17 08:00:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491966222] [2024-11-17 08:00:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491966222] [2024-11-17 08:00:30,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491966222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:00:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913598525] [2024-11-17 08:00:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:00:30,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,770 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 08:00:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:00:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913598525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:00:30,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:00:30,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-17 08:00:30,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979650437] [2024-11-17 08:00:30,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,839 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:00:30,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:30,840 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:30,867 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2024-11-17 08:00:30,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 63 transitions. [2024-11-17 08:00:30,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:30,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 63 transitions. [2024-11-17 08:00:30,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-17 08:00:30,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-17 08:00:30,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 63 transitions. [2024-11-17 08:00:30,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,870 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-11-17 08:00:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 63 transitions. [2024-11-17 08:00:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2024-11-17 08:00:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2024-11-17 08:00:30,876 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 55 transitions. [2024-11-17 08:00:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:30,880 INFO L425 stractBuchiCegarLoop]: Abstraction has 39 states and 55 transitions. [2024-11-17 08:00:30,880 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:00:30,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 55 transitions. [2024-11-17 08:00:30,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:30,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,882 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,882 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,883 INFO L745 eck$LassoCheckResult]: Stem: 391#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 392#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 377#L16 assume true; 378#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 415#L18 assume main_~x~0#1 > 0; 401#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 397#L19-3 [2024-11-17 08:00:30,883 INFO L747 eck$LassoCheckResult]: Loop: 397#L19-3 assume !(main_~x~0#1 == main_~a~0#1); 382#L19-2 havoc main_#t~bitwise2#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise2#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise2#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise2#1 >= -2147483648; 383#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 404#L16 assume true; 407#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 403#L18 assume main_~x~0#1 > 0; 396#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 397#L19-3 [2024-11-17 08:00:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1448572349, now seen corresponding path program 1 times [2024-11-17 08:00:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916908768] [2024-11-17 08:00:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash 857379346, now seen corresponding path program 1 times [2024-11-17 08:00:30,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435104687] [2024-11-17 08:00:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1883082538, now seen corresponding path program 1 times [2024-11-17 08:00:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782004752] [2024-11-17 08:00:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:31,133 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:31,133 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:31,133 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:31,133 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:31,133 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:31,133 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,133 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:31,133 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:31,133 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Loop [2024-11-17 08:00:31,133 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:31,134 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:31,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,231 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-17 08:00:31,447 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:31,447 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:31,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,450 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-17 08:00:31,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,470 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:31,470 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:31,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-17 08:00:31,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,487 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-17 08:00:31,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:00:31,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,524 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:00:31,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:31,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,625 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:31,625 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] [2024-11-17 08:00:31,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,638 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:00:31,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,667 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:31,668 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:31,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-17 08:00:31,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-17 08:00:31,704 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:31,704 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:31,704 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:31,704 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:31,704 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:31,704 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,704 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:31,704 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:31,704 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-17 08:00:31,704 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:31,704 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:31,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,806 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-17 08:00:32,007 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:32,008 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:32,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,010 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:32,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:32,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:00:32,033 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:32,034 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:32,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-17 08:00:32,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,051 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-17 08:00:32,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:32,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:32,068 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:32,069 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:32,083 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 [2024-11-17 08:00:32,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,085 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-17 08:00:32,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:32,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:32,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:32,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,125 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-17 08:00:32,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:32,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:32,351 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:32,357 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 [2024-11-17 08:00:32,357 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:32,357 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:32,357 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:32,357 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:32,357 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:32,357 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,357 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:32,357 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:32,357 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration5_Lasso [2024-11-17 08:00:32,357 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:32,357 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:32,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:32,449 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2024-11-17 08:00:32,625 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:32,626 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:32,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,628 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-17 08:00:32,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:32,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:32,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:32,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:32,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:32,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:32,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:32,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:32,642 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:32,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-17 08:00:32,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,654 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-17 08:00:32,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:32,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:32,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:32,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:32,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:32,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:32,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:32,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:32,669 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:32,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:32,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,681 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-17 08:00:32,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:32,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:32,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:32,693 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-17 08:00:32,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:32,728 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-17 08:00:32,728 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-17 08:00:32,801 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:32,895 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2024-11-17 08:00:32,895 INFO L444 ModelExtractionUtils]: 13 out of 28 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-17 08:00:32,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:32,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:32,898 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:32,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-17 08:00:32,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:32,922 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-17 08:00:32,922 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:32,922 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-11-17 08:00:32,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-17 08:00:32,942 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-17 08:00:32,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:32,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:32,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:33,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:00:33,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,129 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-17 08:00:33,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 55 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 55 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 100 states and 129 transitions. Complement of second has 12 states. [2024-11-17 08:00:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-17 08:00:33,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2024-11-17 08:00:33,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 6 letters. Loop has 7 letters. [2024-11-17 08:00:33,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:33,214 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:00:33,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:33,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:33,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:33,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:00:33,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:33,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-17 08:00:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,390 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 5 loop predicates [2024-11-17 08:00:33,390 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 55 transitions. cyclomatic complexity: 19 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,561 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 55 transitions. cyclomatic complexity: 19. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 124 states and 163 transitions. Complement of second has 20 states. [2024-11-17 08:00:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 3 stem states 7 non-accepting loop states 2 accepting loop states [2024-11-17 08:00:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 28 transitions. [2024-11-17 08:00:33,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 6 letters. Loop has 7 letters. [2024-11-17 08:00:33,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:33,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 13 letters. Loop has 7 letters. [2024-11-17 08:00:33,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:33,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 6 letters. Loop has 14 letters. [2024-11-17 08:00:33,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:33,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 163 transitions. [2024-11-17 08:00:33,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2024-11-17 08:00:33,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 112 states and 147 transitions. [2024-11-17 08:00:33,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-17 08:00:33,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-17 08:00:33,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 147 transitions. [2024-11-17 08:00:33,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:33,568 INFO L218 hiAutomatonCegarLoop]: Abstraction has 112 states and 147 transitions. [2024-11-17 08:00:33,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 147 transitions. [2024-11-17 08:00:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 76. [2024-11-17 08:00:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.368421052631579) internal successors, (104), 75 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-11-17 08:00:33,575 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-11-17 08:00:33,575 INFO L425 stractBuchiCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-11-17 08:00:33,575 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:00:33,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 104 transitions. [2024-11-17 08:00:33,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:33,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:33,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:33,577 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:33,577 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-11-17 08:00:33,577 INFO L745 eck$LassoCheckResult]: Stem: 818#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 819#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 820#L16 assume true; 866#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 863#L18 assume main_~x~0#1 > 0; 831#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 832#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 821#L19 [2024-11-17 08:00:33,577 INFO L747 eck$LassoCheckResult]: Loop: 821#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 805#L16 assume true; 806#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 813#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 814#L16 assume true; 871#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 868#L18 assume main_~x~0#1 > 0; 843#L19-4 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 821#L19 [2024-11-17 08:00:33,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1956069864, now seen corresponding path program 1 times [2024-11-17 08:00:33,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:33,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382546419] [2024-11-17 08:00:33,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:33,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:33,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 880330145, now seen corresponding path program 2 times [2024-11-17 08:00:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:33,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473031199] [2024-11-17 08:00:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:33,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473031199] [2024-11-17 08:00:33,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473031199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:00:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019704035] [2024-11-17 08:00:33,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 08:00:33,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:00:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:33,623 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:00:33,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-17 08:00:33,646 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 08:00:33,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 08:00:33,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:33,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:00:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019704035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:00:33,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:00:33,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-17 08:00:33,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999129940] [2024-11-17 08:00:33,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:00:33,669 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:00:33,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:33,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:33,670 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:33,696 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2024-11-17 08:00:33,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 78 transitions. [2024-11-17 08:00:33,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:33,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 44 states and 53 transitions. [2024-11-17 08:00:33,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-17 08:00:33,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-17 08:00:33,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 53 transitions. [2024-11-17 08:00:33,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:33,699 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 53 transitions. [2024-11-17 08:00:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 53 transitions. [2024-11-17 08:00:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2024-11-17 08:00:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.225) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2024-11-17 08:00:33,702 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2024-11-17 08:00:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:00:33,706 INFO L425 stractBuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2024-11-17 08:00:33,706 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-17 08:00:33,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2024-11-17 08:00:33,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:33,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:33,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:33,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:33,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:33,707 INFO L745 eck$LassoCheckResult]: Stem: 1007#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1008#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1009#L16 assume true; 1026#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1023#L18 assume main_~x~0#1 > 0; 1020#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1013#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1010#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 996#L16 [2024-11-17 08:00:33,708 INFO L747 eck$LassoCheckResult]: Loop: 996#L16 assume true; 997#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1004#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 996#L16 [2024-11-17 08:00:33,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 508623643, now seen corresponding path program 2 times [2024-11-17 08:00:33,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:33,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850974539] [2024-11-17 08:00:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:33,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash 45642, now seen corresponding path program 2 times [2024-11-17 08:00:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:33,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863397648] [2024-11-17 08:00:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:33,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:33,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash -237655824, now seen corresponding path program 1 times [2024-11-17 08:00:33,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:33,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108287294] [2024-11-17 08:00:33,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:33,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:33,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108287294] [2024-11-17 08:00:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108287294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:33,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:33,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:00:33,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112395198] [2024-11-17 08:00:33,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:33,790 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:33,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:33,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:33,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:33,791 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:33,791 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,791 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:33,791 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:33,791 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-17 08:00:33,791 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:33,792 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:33,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:33,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:33,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:33,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:33,836 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:33,836 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:33,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:33,838 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:33,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-17 08:00:33,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:33,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:33,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-17 08:00:33,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:33,872 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:33,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-17 08:00:33,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:33,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:33,904 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:33,904 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=2}, {ULTIMATE.start_main_~a~0#1=-3}, {ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-11-17 08:00:33,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:33,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:33,923 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:33,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-17 08:00:33,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:33,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:33,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:33,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:33,956 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:33,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:33,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:33,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-17 08:00:33,993 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:33,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:33,997 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:33,997 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:33,997 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:33,997 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:33,997 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:33,998 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:33,998 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:33,998 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:33,998 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration7_Loop [2024-11-17 08:00:33,998 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:33,998 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:33,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,041 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:34,041 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:34,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,042 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-17 08:00:34,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:34,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:34,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:34,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:34,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:34,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:34,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:34,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:34,059 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:34,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:34,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,074 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-17 08:00:34,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:34,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:34,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:34,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:34,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:34,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:34,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:34,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:34,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:34,093 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:34,094 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:34,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,096 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-17 08:00:34,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:34,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:34,098 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:34,098 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:34,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-17 08:00:34,114 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:34,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,148 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:34,148 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,167 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 104 states and 128 transitions. Complement of second has 5 states. [2024-11-17 08:00:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-17 08:00:34,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-17 08:00:34,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-17 08:00:34,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-17 08:00:34,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 128 transitions. [2024-11-17 08:00:34,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:34,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 75 states and 94 transitions. [2024-11-17 08:00:34,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2024-11-17 08:00:34,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2024-11-17 08:00:34,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 94 transitions. [2024-11-17 08:00:34,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:34,172 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75 states and 94 transitions. [2024-11-17 08:00:34,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 94 transitions. [2024-11-17 08:00:34,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 42. [2024-11-17 08:00:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 41 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2024-11-17 08:00:34,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-11-17 08:00:34,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:34,177 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:34,201 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2024-11-17 08:00:34,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2024-11-17 08:00:34,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:34,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 46 states and 54 transitions. [2024-11-17 08:00:34,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-17 08:00:34,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-17 08:00:34,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 54 transitions. [2024-11-17 08:00:34,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:34,203 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-11-17 08:00:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 54 transitions. [2024-11-17 08:00:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2024-11-17 08:00:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 41 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-11-17 08:00:34,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-11-17 08:00:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:34,212 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-11-17 08:00:34,212 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-17 08:00:34,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 50 transitions. [2024-11-17 08:00:34,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:34,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:34,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:34,213 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 08:00:34,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:34,214 INFO L745 eck$LassoCheckResult]: Stem: 1301#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1302#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~bitwise2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 1303#L16 assume true; 1316#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1314#L18 assume main_~x~0#1 > 0; 1312#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1310#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise2#1 := main_~x~0#1; 1291#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1286#L16 assume true; 1287#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1298#L18 assume main_~x~0#1 > 0; 1304#L19-4 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise2#1 := 0; 1305#L19 main_~x~0#1 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 1295#L16 [2024-11-17 08:00:34,214 INFO L747 eck$LassoCheckResult]: Loop: 1295#L16 assume true; 1322#L16-1 assume !!(0 != main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 1294#L18 assume !(main_~x~0#1 > 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1295#L16 [2024-11-17 08:00:34,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash -753979088, now seen corresponding path program 1 times [2024-11-17 08:00:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946642525] [2024-11-17 08:00:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946642525] [2024-11-17 08:00:34,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946642525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:00:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79919811] [2024-11-17 08:00:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:34,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:00:34,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,279 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-17 08:00:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:00:34,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79919811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:00:34,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:00:34,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-17 08:00:34,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218913909] [2024-11-17 08:00:34,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:00:34,368 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:00:34,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash 45642, now seen corresponding path program 3 times [2024-11-17 08:00:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:34,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997599925] [2024-11-17 08:00:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:34,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:34,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:34,394 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:34,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:34,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:34,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:34,394 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:34,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:34,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:34,394 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-17 08:00:34,394 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:34,394 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:34,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,437 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:34,437 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:34,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,439 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-17 08:00:34,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:34,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:34,455 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:34,455 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:34,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-17 08:00:34,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,472 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-17 08:00:34,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:34,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:34,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-17 08:00:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,508 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-17 08:00:34,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:34,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:34,546 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:34,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-17 08:00:34,552 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:34,552 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:34,552 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:34,552 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:34,552 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:34,552 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,552 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:34,552 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:34,552 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-02.c_Iteration8_Loop [2024-11-17 08:00:34,552 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:34,552 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:34,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:34,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:34,598 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:34,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,600 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-17 08:00:34,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:34,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:34,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:34,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:34,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:34,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:34,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:34,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:34,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:34,622 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:00:34,622 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:00:34,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:34,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:34,624 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:34,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-17 08:00:34,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:34,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:34,626 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:34,626 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:34,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:34,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:34,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,679 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:34,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,700 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 107 transitions. Complement of second has 5 states. [2024-11-17 08:00:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-11-17 08:00:34,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:00:34,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,701 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:00:34,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,752 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:34,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 107 transitions. Complement of second has 5 states. [2024-11-17 08:00:34,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-11-17 08:00:34,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:00:34,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,774 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:00:34,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:34,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:34,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:34,810 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:34,811 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 83 transitions. Complement of second has 4 states. [2024-11-17 08:00:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-17 08:00:34,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-17 08:00:34,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-17 08:00:34,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-17 08:00:34,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:34,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 83 transitions. [2024-11-17 08:00:34,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:34,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 0 states and 0 transitions. [2024-11-17 08:00:34,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:00:34,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:00:34,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:00:34,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:34,836 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:34,837 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:34,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:34,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 08:00:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 08:00:34,837 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:34,837 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-17 08:00:34,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-17 08:00:34,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:34,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 08:00:34,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:00:34,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:00:34,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:00:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:34,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:34,838 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 08:00:34,838 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:34,838 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-17 08:00:34,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:00:34,838 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:34,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:00:34,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:00:34 BoogieIcfgContainer [2024-11-17 08:00:34,845 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:00:34,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:00:34,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:00:34,846 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:00:34,846 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28" (3/4) ... [2024-11-17 08:00:34,848 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:00:34,849 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:00:34,849 INFO L158 Benchmark]: Toolchain (without parser) took 6728.25ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 68.8MB in the beginning and 51.5MB in the end (delta: 17.3MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2024-11-17 08:00:34,850 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:34,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.15ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 68.6MB in the beginning and 157.3MB in the end (delta: -88.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-17 08:00:34,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.10ms. Allocated memory is still 186.6MB. Free memory was 157.3MB in the beginning and 156.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:00:34,860 INFO L158 Benchmark]: Boogie Preprocessor took 21.03ms. Allocated memory is still 186.6MB. Free memory was 156.2MB in the beginning and 155.2MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:34,864 INFO L158 Benchmark]: IcfgBuilder took 292.38ms. Allocated memory is still 186.6MB. Free memory was 155.2MB in the beginning and 143.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:00:34,864 INFO L158 Benchmark]: BuchiAutomizer took 6114.01ms. Allocated memory is still 186.6MB. Free memory was 143.4MB in the beginning and 51.5MB in the end (delta: 92.0MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2024-11-17 08:00:34,864 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 186.6MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:34,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.15ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 68.6MB in the beginning and 157.3MB in the end (delta: -88.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.10ms. Allocated memory is still 186.6MB. Free memory was 157.3MB in the beginning and 156.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.03ms. Allocated memory is still 186.6MB. Free memory was 156.2MB in the beginning and 155.2MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 292.38ms. Allocated memory is still 186.6MB. Free memory was 155.2MB in the beginning and 143.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6114.01ms. Allocated memory is still 186.6MB. Free memory was 143.4MB in the beginning and 51.5MB in the end (delta: 92.0MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 186.6MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One deterministic module has affine ranking function a and consists of 6 locations. One deterministic module has affine ranking function a and consists of 12 locations. One deterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. One nondeterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 8. Automata minimization 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 92 StatesRemovedByMinimization, 7 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, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 177 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 103 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp90 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf95 smp81 dnf442 smp75 tf108 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 242ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 5 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! [2024-11-17 08:00:34,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-17 08:00:34,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:35,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-17 08:00:35,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-17 08:00:35,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:35,489 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