./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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-06.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 d5d25da990643b4b5025c4e511382360ecc906ce1073cabf600162c7aef9f4cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:31:03,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:31:03,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-10 22:31:03,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:31:03,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:31:03,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:31:03,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:31:03,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:31:03,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:31:03,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:31:03,887 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:31:03,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:31:03,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:31:03,888 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:31:03,888 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:31:03,888 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:31:03,888 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:31:03,888 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:31:03,889 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:31:03,889 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:31:03,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:31:03,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:31:03,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:31:03,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:31:03,894 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:31:03,895 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:31:03,895 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:31:03,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:31:03,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:31:03,895 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:31:03,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5d25da990643b4b5025c4e511382360ecc906ce1073cabf600162c7aef9f4cd [2024-11-10 22:31:04,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:31:04,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:31:04,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:31:04,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:31:04,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:31:04,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-06.c [2024-11-10 22:31:05,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:31:05,924 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:31:05,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-06.c [2024-11-10 22:31:05,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddd513008/01e24e6b630a4c9fb8d7640e44b1ebd6/FLAGed78b6af5 [2024-11-10 22:31:06,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddd513008/01e24e6b630a4c9fb8d7640e44b1ebd6 [2024-11-10 22:31:06,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:31:06,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:31:06,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:06,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:31:06,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:31:06,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0ea0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:31:06,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:06,516 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:31:06,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:06,538 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:31:06,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06 WrapperNode [2024-11-10 22:31:06,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:06,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:06,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:31:06,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:31:06,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,562 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-10 22:31:06,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:06,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:31:06,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:31:06,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:31:06,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,577 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 22:31:06,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,581 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:31:06,584 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:31:06,584 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:31:06,584 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:31:06,585 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:06,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:06,621 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) [2024-11-10 22:31:06,632 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 [2024-11-10 22:31:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:31:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:31:06,717 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:31:06,720 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:31:06,829 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-10 22:31:06,830 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:31:06,871 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:31:06,871 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:31:06,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06 BoogieIcfgContainer [2024-11-10 22:31:06,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:31:06,879 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:31:06,879 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:31:06,882 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:31:06,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,890 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:31:06" (1/3) ... [2024-11-10 22:31:06,891 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e579d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,891 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (2/3) ... [2024-11-10 22:31:06,891 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e579d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,891 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06" (3/3) ... [2024-11-10 22:31:06,892 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-06.c [2024-11-10 22:31:06,965 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:31:06,965 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:31:06,965 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:31:06,965 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:31:06,965 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:31:06,965 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:31:06,966 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:31:06,966 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:31:06,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2024-11-10 22:31:06,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:06,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:06,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:06,991 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 22:31:06,991 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-10 22:31:06,992 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:31:06,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2024-11-10 22:31:06,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:06,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:06,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:06,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 22:31:06,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-10 22:31:06,999 INFO L745 eck$LassoCheckResult]: Stem: 7#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~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#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;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L16true [2024-11-10 22:31:06,999 INFO L747 eck$LassoCheckResult]: Loop: 2#L16true assume true; 5#L16-1true assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 10#L18true assume main_~a~0#1 > 0; 9#L19-4true assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise3#1 := 0; 15#L19true main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 2#L16true [2024-11-10 22:31:07,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1792, now seen corresponding path program 1 times [2024-11-10 22:31:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169165449] [2024-11-10 22:31:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash 50542000, now seen corresponding path program 1 times [2024-11-10 22:31:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738720319] [2024-11-10 22:31:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:07,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:31:07,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738720319] [2024-11-10 22:31:07,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738720319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:31:07,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:31:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:31:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385012781] [2024-11-10 22:31:07,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:31:07,178 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 22:31:07,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:31:07,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:31:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:31:07,206 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2024-11-10 22:31:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:31:07,251 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-10 22:31:07,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-11-10 22:31:07,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:07,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2024-11-10 22:31:07,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-10 22:31:07,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-10 22:31:07,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-10 22:31:07,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:31:07,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-10 22:31:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-10 22:31:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-10 22:31:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-10 22:31:07,288 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-10 22:31:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:31:07,293 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-10 22:31:07,295 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 22:31:07,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2024-11-10 22:31:07,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:07,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:07,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:07,298 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 22:31:07,298 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-10 22:31:07,299 INFO L745 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 52#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L16 [2024-11-10 22:31:07,299 INFO L747 eck$LassoCheckResult]: Loop: 46#L16 assume true; 47#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 50#L18 assume !(main_~a~0#1 > 0); 55#L21-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise4#1 := 0; 56#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 46#L16 [2024-11-10 22:31:07,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1792, now seen corresponding path program 2 times [2024-11-10 22:31:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601163090] [2024-11-10 22:31:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,317 INFO L85 PathProgramCache]: Analyzing trace with hash 50543185, now seen corresponding path program 1 times [2024-11-10 22:31:07,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765126532] [2024-11-10 22:31:07,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,348 INFO L85 PathProgramCache]: Analyzing trace with hash -214254926, now seen corresponding path program 1 times [2024-11-10 22:31:07,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278313772] [2024-11-10 22:31:07,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,473 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:07,473 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:07,474 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:07,474 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:07,474 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:07,474 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,474 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:07,474 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:07,474 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration2_Loop [2024-11-10 22:31:07,474 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:07,477 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:07,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,630 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:07,630 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:07,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,638 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) [2024-11-10 22:31:07,640 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 [2024-11-10 22:31:07,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:07,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,657 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:07,657 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise4#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:07,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-10 22:31:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,670 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) [2024-11-10 22:31:07,671 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 [2024-11-10 22:31:07,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:07,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,714 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 [2024-11-10 22:31:07,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,718 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) [2024-11-10 22:31:07,720 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 [2024-11-10 22:31:07,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:07,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,742 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:07,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-10 22:31:07,753 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:07,753 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:07,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:07,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:07,754 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:07,754 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,754 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:07,754 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:07,754 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration2_Loop [2024-11-10 22:31:07,754 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:07,754 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:07,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,810 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:07,814 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:07,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,819 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) [2024-11-10 22:31:07,820 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 [2024-11-10 22:31:07,821 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 [2024-11-10 22:31:07,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:07,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:07,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:07,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:07,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:07,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:07,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:07,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:07,840 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:31:07,840 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-10 22:31:07,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,862 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) [2024-11-10 22:31:07,863 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 [2024-11-10 22:31:07,864 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:07,864 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:07,865 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:07,865 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 [] [2024-11-10 22:31:07,878 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 [2024-11-10 22:31:07,881 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:07,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-10 22:31:07,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:07,934 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:07,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:07,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:07,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:08,031 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 22:31:08,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:08,093 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 57 transitions. Complement of second has 10 states. [2024-11-10 22:31:08,098 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 [2024-11-10 22:31:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2024-11-10 22:31:08,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-10 22:31:08,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-10 22:31:08,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-10 22:31:08,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2024-11-10 22:31:08,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:08,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 43 states and 55 transitions. [2024-11-10 22:31:08,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-10 22:31:08,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-10 22:31:08,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 55 transitions. [2024-11-10 22:31:08,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:08,108 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 55 transitions. [2024-11-10 22:31:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 55 transitions. [2024-11-10 22:31:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2024-11-10 22:31:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 26 states have internal predecessors, (34), 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) [2024-11-10 22:31:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-10 22:31:08,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-10 22:31:08,112 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-10 22:31:08,112 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 22:31:08,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2024-11-10 22:31:08,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-10 22:31:08,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:08,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:08,113 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:31:08,113 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:31:08,113 INFO L745 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 167#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 174#L16 assume true; 157#L16-1 [2024-11-10 22:31:08,113 INFO L747 eck$LassoCheckResult]: Loop: 157#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 160#L18 assume main_~a~0#1 > 0; 168#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 169#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 153#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 156#L16 assume true; 157#L16-1 [2024-11-10 22:31:08,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,116 INFO L85 PathProgramCache]: Analyzing trace with hash 55575, now seen corresponding path program 1 times [2024-11-10 22:31:08,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389173180] [2024-11-10 22:31:08,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1533317900, now seen corresponding path program 1 times [2024-11-10 22:31:08,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394093619] [2024-11-10 22:31:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,137 INFO L85 PathProgramCache]: Analyzing trace with hash 258458530, now seen corresponding path program 1 times [2024-11-10 22:31:08,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809408324] [2024-11-10 22:31:08,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,180 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,180 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,180 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,180 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,180 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:08,180 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,180 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,180 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,180 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration3_Loop [2024-11-10 22:31:08,181 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,181 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,216 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,216 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:08,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,218 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) [2024-11-10 22:31:08,219 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 [2024-11-10 22:31:08,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,231 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:08,232 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:08,245 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 [2024-11-10 22:31:08,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,247 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) [2024-11-10 22:31:08,248 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 [2024-11-10 22:31:08,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,271 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 [2024-11-10 22:31:08,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,273 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) [2024-11-10 22:31:08,273 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 [2024-11-10 22:31:08,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:08,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,324 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:08,328 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 [2024-11-10 22:31:08,329 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,329 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,329 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,329 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,329 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:08,329 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,329 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,329 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,329 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration3_Loop [2024-11-10 22:31:08,329 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,329 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,364 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,365 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:08,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,385 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) [2024-11-10 22:31:08,386 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 [2024-11-10 22:31:08,387 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 [2024-11-10 22:31:08,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,401 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:08,403 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 22:31:08,403 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:31:08,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,405 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) [2024-11-10 22:31:08,406 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 [2024-11-10 22:31:08,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:08,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:08,407 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:08,407 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 [] [2024-11-10 22:31:08,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:08,420 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:08,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:08,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:08,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:31:08,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:08,468 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 22:31:08,468 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:08,493 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 76 transitions. Complement of second has 6 states. [2024-11-10 22:31:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-10 22:31:08,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-10 22:31:08,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-10 22:31:08,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-10 22:31:08,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:08,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2024-11-10 22:31:08,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:08,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 76 transitions. [2024-11-10 22:31:08,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-10 22:31:08,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-10 22:31:08,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 76 transitions. [2024-11-10 22:31:08,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:08,500 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 76 transitions. [2024-11-10 22:31:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 76 transitions. [2024-11-10 22:31:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2024-11-10 22:31:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 51 states have internal predecessors, (67), 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) [2024-11-10 22:31:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-10 22:31:08,503 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-10 22:31:08,503 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-10 22:31:08,503 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 22:31:08,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 67 transitions. [2024-11-10 22:31:08,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:08,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:08,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:08,504 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 22:31:08,504 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:08,504 INFO L745 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 306#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 312#L16 assume true; 327#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 298#L18 [2024-11-10 22:31:08,505 INFO L747 eck$LassoCheckResult]: Loop: 298#L18 assume !(main_~a~0#1 > 0); 310#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 301#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 302#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 313#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 294#L16 assume true; 295#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 298#L18 [2024-11-10 22:31:08,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1722847, now seen corresponding path program 1 times [2024-11-10 22:31:08,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279486471] [2024-11-10 22:31:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1010771133, now seen corresponding path program 1 times [2024-11-10 22:31:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692600353] [2024-11-10 22:31:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash 368420127, now seen corresponding path program 1 times [2024-11-10 22:31:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:08,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079464502] [2024-11-10 22:31:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:08,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,637 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,637 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,637 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,637 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,637 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:08,637 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,637 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,637 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,637 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration4_Loop [2024-11-10 22:31:08,637 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,637 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,698 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:08,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,700 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) [2024-11-10 22:31:08,704 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 [2024-11-10 22:31:08,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:08,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,752 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) [2024-11-10 22:31:08,755 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 [2024-11-10 22:31:08,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:08,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,781 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:08,781 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=0}, {ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~a~0#1=-1}] Lambdas: [12, 4, 1] Nus: [0, 0] [2024-11-10 22:31:08,792 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 [2024-11-10 22:31:08,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,794 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) [2024-11-10 22:31:08,795 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 [2024-11-10 22:31:08,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,817 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 [2024-11-10 22:31:08,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:31:08,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-10 22:31:08,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:08,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,862 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:08,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:08,868 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,868 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,868 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,868 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,868 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:08,869 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,869 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,869 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,869 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration4_Loop [2024-11-10 22:31:08,869 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,869 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,907 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,908 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:08,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,910 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) [2024-11-10 22:31:08,911 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 [2024-11-10 22:31:08,912 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 [2024-11-10 22:31:08,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,925 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:08,935 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 [2024-11-10 22:31:08,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,939 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) [2024-11-10 22:31:08,947 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 [2024-11-10 22:31:08,948 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 [2024-11-10 22:31:08,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,961 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:08,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:08,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,977 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) [2024-11-10 22:31:08,983 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 [2024-11-10 22:31:08,984 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 [2024-11-10 22:31:08,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:09,000 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:31:09,000 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-10 22:31:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,022 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) [2024-11-10 22:31:09,023 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 [2024-11-10 22:31:09,024 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:09,024 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:09,024 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:09,024 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 [] [2024-11-10 22:31:09,034 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 [2024-11-10 22:31:09,035 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:09,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:09,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:09,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:09,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:31:09,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:09,153 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 [2024-11-10 22:31:09,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 67 transitions. cyclomatic complexity: 19 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) [2024-11-10 22:31:09,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 67 transitions. cyclomatic complexity: 19. 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 125 states and 151 transitions. Complement of second has 11 states. [2024-11-10 22:31:09,219 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 [2024-11-10 22:31:09,220 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) [2024-11-10 22:31:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-11-10 22:31:09,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 4 letters. Loop has 7 letters. [2024-11-10 22:31:09,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 11 letters. Loop has 7 letters. [2024-11-10 22:31:09,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 4 letters. Loop has 14 letters. [2024-11-10 22:31:09,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 151 transitions. [2024-11-10 22:31:09,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:09,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 85 states and 109 transitions. [2024-11-10 22:31:09,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-10 22:31:09,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-10 22:31:09,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 109 transitions. [2024-11-10 22:31:09,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:09,231 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-10 22:31:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 109 transitions. [2024-11-10 22:31:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2024-11-10 22:31:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 66 states have internal predecessors, (84), 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) [2024-11-10 22:31:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2024-11-10 22:31:09,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-11-10 22:31:09,238 INFO L425 stractBuchiCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-11-10 22:31:09,238 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 22:31:09,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 84 transitions. [2024-11-10 22:31:09,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:09,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:09,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:09,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:09,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:09,239 INFO L745 eck$LassoCheckResult]: Stem: 547#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 548#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 535#L16 assume true; 536#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 544#L18 assume main_~a~0#1 > 0; 571#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 563#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 532#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 556#L16 [2024-11-10 22:31:09,239 INFO L747 eck$LassoCheckResult]: Loop: 556#L16 assume true; 564#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 552#L18 assume !(main_~a~0#1 > 0); 553#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 540#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 541#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 555#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 556#L16 [2024-11-10 22:31:09,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:09,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1948000021, now seen corresponding path program 2 times [2024-11-10 22:31:09,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:09,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827943070] [2024-11-10 22:31:09,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:09,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:09,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:09,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:09,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:09,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1327515167, now seen corresponding path program 2 times [2024-11-10 22:31:09,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:09,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072680232] [2024-11-10 22:31:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:09,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:09,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:09,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:09,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:09,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1517631349, now seen corresponding path program 1 times [2024-11-10 22:31:09,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756502842] [2024-11-10 22:31:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:09,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:09,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:31:09,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756502842] [2024-11-10 22:31:09,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756502842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:31:09,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:31:09,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:31:09,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676467071] [2024-11-10 22:31:09,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:31:09,480 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:09,481 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:09,481 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:09,481 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:09,481 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:09,481 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,481 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:09,481 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:09,481 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration5_Loop [2024-11-10 22:31:09,483 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:09,483 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:09,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,528 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 [2024-11-10 22:31:09,552 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 [2024-11-10 22:31:09,576 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:09,580 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,582 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) [2024-11-10 22:31:09,585 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 [2024-11-10 22:31:09,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:09,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,598 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:09,598 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:09,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,615 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) [2024-11-10 22:31:09,623 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 [2024-11-10 22:31:09,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:09,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,651 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) [2024-11-10 22:31:09,652 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 [2024-11-10 22:31:09,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:09,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,701 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:09,701 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~a~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=0}] Lambdas: [4, 1, 10] Nus: [0, 1] [2024-11-10 22:31:09,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-10 22:31:09,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,713 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) [2024-11-10 22:31:09,714 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 [2024-11-10 22:31:09,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:09,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,727 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:09,727 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise4#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:09,736 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 [2024-11-10 22:31:09,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,738 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) [2024-11-10 22:31:09,739 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 [2024-11-10 22:31:09,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:09,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,762 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) [2024-11-10 22:31:09,763 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 [2024-11-10 22:31:09,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:09,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:09,792 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:09,796 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 [2024-11-10 22:31:09,796 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:09,797 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:09,797 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:09,797 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:09,797 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:09,797 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,797 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:09,797 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:09,797 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration5_Loop [2024-11-10 22:31:09,797 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:09,797 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:09,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:09,845 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:09,845 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:09,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,847 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) [2024-11-10 22:31:09,848 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 [2024-11-10 22:31:09,850 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 [2024-11-10 22:31:09,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:09,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:09,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:09,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:09,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:09,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:09,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:09,862 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:09,872 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 [2024-11-10 22:31:09,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,874 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) [2024-11-10 22:31:09,876 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 [2024-11-10 22:31:09,877 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 [2024-11-10 22:31:09,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:09,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:09,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:09,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:09,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:09,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:09,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:09,891 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:09,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,903 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:31:09,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-10 22:31:09,905 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 [2024-11-10 22:31:09,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:09,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:09,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:09,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:09,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:09,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:09,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:09,917 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:09,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-10 22:31:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,929 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) [2024-11-10 22:31:09,930 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 [2024-11-10 22:31:09,931 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 [2024-11-10 22:31:09,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:09,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:09,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:09,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:09,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:09,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:09,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:09,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:09,946 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:31:09,946 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-10 22:31:09,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:09,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:09,948 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) [2024-11-10 22:31:09,952 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 [2024-11-10 22:31:09,952 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:09,952 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:09,952 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:09,952 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 [] [2024-11-10 22:31:09,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,964 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:09,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:09,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:09,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:09,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:09,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:10,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:10,014 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 22:31:10,014 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 67 states and 84 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,059 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 67 states and 84 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 209 states and 257 transitions. Complement of second has 9 states. [2024-11-10 22:31:10,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-11-10 22:31:10,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 7 letters. [2024-11-10 22:31:10,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-10 22:31:10,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 14 letters. [2024-11-10 22:31:10,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 257 transitions. [2024-11-10 22:31:10,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2024-11-10 22:31:10,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 148 states and 186 transitions. [2024-11-10 22:31:10,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-10 22:31:10,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-11-10 22:31:10,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 186 transitions. [2024-11-10 22:31:10,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:10,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 186 transitions. [2024-11-10 22:31:10,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 186 transitions. [2024-11-10 22:31:10,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2024-11-10 22:31:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.2543859649122806) internal successors, (143), 113 states have internal predecessors, (143), 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) [2024-11-10 22:31:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2024-11-10 22:31:10,077 INFO L240 hiAutomatonCegarLoop]: Abstraction has 114 states and 143 transitions. [2024-11-10 22:31:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:31:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:31:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:31:10,078 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:31:10,121 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2024-11-10 22:31:10,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2024-11-10 22:31:10,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:10,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 149 states and 184 transitions. [2024-11-10 22:31:10,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-10 22:31:10,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-10 22:31:10,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 184 transitions. [2024-11-10 22:31:10,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:10,123 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 184 transitions. [2024-11-10 22:31:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 184 transitions. [2024-11-10 22:31:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2024-11-10 22:31:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 130 states have (on average 1.2307692307692308) internal successors, (160), 129 states have internal predecessors, (160), 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) [2024-11-10 22:31:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 160 transitions. [2024-11-10 22:31:10,128 INFO L240 hiAutomatonCegarLoop]: Abstraction has 130 states and 160 transitions. [2024-11-10 22:31:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:31:10,129 INFO L425 stractBuchiCegarLoop]: Abstraction has 130 states and 160 transitions. [2024-11-10 22:31:10,129 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-10 22:31:10,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 160 transitions. [2024-11-10 22:31:10,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:10,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:10,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:10,130 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:10,130 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:10,130 INFO L745 eck$LassoCheckResult]: Stem: 1170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1171#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1159#L16 assume true; 1161#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1216#L18 assume !(main_~a~0#1 > 0); 1192#L21-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise4#1 := 0; 1191#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1189#L16 assume true; 1188#L16-1 [2024-11-10 22:31:10,130 INFO L747 eck$LassoCheckResult]: Loop: 1188#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1174#L18 assume !(main_~a~0#1 > 0); 1175#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 1166#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 1167#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 1178#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1179#L16 assume true; 1188#L16-1 [2024-11-10 22:31:10,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1948031909, now seen corresponding path program 2 times [2024-11-10 22:31:10,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301991336] [2024-11-10 22:31:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:10,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,136 INFO L85 PathProgramCache]: Analyzing trace with hash 323629997, now seen corresponding path program 3 times [2024-11-10 22:31:10,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275533003] [2024-11-10 22:31:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:10,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash -367396983, now seen corresponding path program 1 times [2024-11-10 22:31:10,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507857566] [2024-11-10 22:31:10,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:10,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:31:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507857566] [2024-11-10 22:31:10,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507857566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:31:10,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:31:10,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:31:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037975778] [2024-11-10 22:31:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:31:10,226 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:10,227 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:10,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:10,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:10,227 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:10,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:10,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:10,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration6_Loop [2024-11-10 22:31:10,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:10,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:10,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,264 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:10,264 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:10,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,266 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) [2024-11-10 22:31:10,267 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 [2024-11-10 22:31:10,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:10,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:10,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-10 22:31:10,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,292 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) [2024-11-10 22:31:10,299 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 [2024-11-10 22:31:10,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:10,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:10,327 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:10,331 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 [2024-11-10 22:31:10,331 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:10,331 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:10,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:10,332 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:10,332 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:10,332 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,332 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:10,332 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:10,332 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration6_Loop [2024-11-10 22:31:10,332 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:10,332 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:10,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,371 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:10,371 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:10,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,372 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) [2024-11-10 22:31:10,374 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 [2024-11-10 22:31:10,374 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 [2024-11-10 22:31:10,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:10,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:10,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:10,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:10,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:10,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:10,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:10,386 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:10,388 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 22:31:10,388 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:31:10,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,408 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) [2024-11-10 22:31:10,410 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 [2024-11-10 22:31:10,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:10,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:10,410 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:10,410 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 [] [2024-11-10 22:31:10,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-10 22:31:10,421 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:10,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:10,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:10,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:10,482 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 [2024-11-10 22:31:10,482 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 130 states and 160 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,505 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 130 states and 160 transitions. cyclomatic complexity: 40. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 198 states and 241 transitions. Complement of second has 9 states. [2024-11-10 22:31:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-10 22:31:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 7 letters. [2024-11-10 22:31:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-10 22:31:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 14 letters. [2024-11-10 22:31:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:10,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 241 transitions. [2024-11-10 22:31:10,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:10,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 132 states and 164 transitions. [2024-11-10 22:31:10,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-10 22:31:10,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-10 22:31:10,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 164 transitions. [2024-11-10 22:31:10,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:10,509 INFO L218 hiAutomatonCegarLoop]: Abstraction has 132 states and 164 transitions. [2024-11-10 22:31:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 164 transitions. [2024-11-10 22:31:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2024-11-10 22:31:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.248062015503876) internal successors, (161), 128 states have internal predecessors, (161), 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) [2024-11-10 22:31:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2024-11-10 22:31:10,516 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 161 transitions. [2024-11-10 22:31:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:31:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:31:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:31:10,517 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:31:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:31:10,530 INFO L93 Difference]: Finished difference Result 129 states and 147 transitions. [2024-11-10 22:31:10,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 147 transitions. [2024-11-10 22:31:10,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:10,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 49 states and 56 transitions. [2024-11-10 22:31:10,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-10 22:31:10,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-10 22:31:10,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 56 transitions. [2024-11-10 22:31:10,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:10,531 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-10 22:31:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 56 transitions. [2024-11-10 22:31:10,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-10 22:31:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 48 states have internal predecessors, (56), 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) [2024-11-10 22:31:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-10 22:31:10,532 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-10 22:31:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:31:10,533 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-10 22:31:10,533 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-10 22:31:10,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 56 transitions. [2024-11-10 22:31:10,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-10 22:31:10,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:10,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:10,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 22:31:10,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:10,534 INFO L745 eck$LassoCheckResult]: Stem: 1831#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1832#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1816#L16 assume true; 1817#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1829#L18 assume main_~a~0#1 > 0; 1833#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1834#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 1844#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 1818#L16 assume true; 1819#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1830#L18 assume main_~a~0#1 > 0; 1848#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1845#L19-3 assume !(main_~x~0#1 == main_~a~0#1); 1820#L19-2 havoc main_#t~bitwise3#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise3#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise3#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise3#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise3#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise3#1 >= -2147483648; 1821#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 1840#L16 [2024-11-10 22:31:10,534 INFO L747 eck$LassoCheckResult]: Loop: 1840#L16 assume true; 1847#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1835#L18 assume !(main_~a~0#1 > 0); 1836#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 1824#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 1825#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 1839#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1840#L16 [2024-11-10 22:31:10,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1518770110, now seen corresponding path program 1 times [2024-11-10 22:31:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332066138] [2024-11-10 22:31:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:10,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1327515167, now seen corresponding path program 4 times [2024-11-10 22:31:10,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008635767] [2024-11-10 22:31:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:10,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:10,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 435045054, now seen corresponding path program 1 times [2024-11-10 22:31:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171985516] [2024-11-10 22:31:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:10,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:31:10,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:31:10,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171985516] [2024-11-10 22:31:10,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171985516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:31:10,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:31:10,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:31:10,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643284615] [2024-11-10 22:31:10,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:31:10,683 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:10,683 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:10,683 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:10,683 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:10,683 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:10,683 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,683 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:10,683 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:10,683 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration7_Loop [2024-11-10 22:31:10,683 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:10,683 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:10,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,725 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:10,725 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:10,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,729 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) [2024-11-10 22:31:10,730 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 [2024-11-10 22:31:10,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:10,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:10,778 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 [2024-11-10 22:31:10,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,782 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 22:31:10,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-10 22:31:10,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:10,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:10,817 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:10,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-10 22:31:10,824 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:10,824 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:10,824 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:10,824 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:10,824 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:10,824 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,824 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:10,824 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:10,824 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration7_Loop [2024-11-10 22:31:10,824 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:10,824 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:10,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:10,864 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:10,864 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,866 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) [2024-11-10 22:31:10,867 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 [2024-11-10 22:31:10,868 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 [2024-11-10 22:31:10,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:10,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:10,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:10,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:10,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:10,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:10,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:10,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:10,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:31:10,885 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-10 22:31:10,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:10,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:10,886 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) [2024-11-10 22:31:10,887 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 [2024-11-10 22:31:10,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:10,887 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:10,888 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:10,888 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 [] [2024-11-10 22:31:10,898 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 [2024-11-10 22:31:10,899 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:10,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:10,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:10,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:10,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:10,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:10,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:11,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-10 22:31:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:11,012 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 22:31:11,012 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 71 states and 81 transitions. Complement of second has 9 states. [2024-11-10 22:31:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-10 22:31:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-10 22:31:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:11,048 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-10 22:31:11,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:11,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:11,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:11,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:11,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:11,125 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 22:31:11,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,145 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 71 states and 81 transitions. Complement of second has 9 states. [2024-11-10 22:31:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-10 22:31:11,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-10 22:31:11,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:11,146 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-10 22:31:11,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:11,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:11,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:11,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:31:11,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:11,234 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 3 loop predicates [2024-11-10 22:31:11,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,262 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 75 states and 85 transitions. Complement of second has 8 states. [2024-11-10 22:31:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-10 22:31:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2024-11-10 22:31:11,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-10 22:31:11,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:11,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 22 letters. Loop has 7 letters. [2024-11-10 22:31:11,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:11,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 14 letters. [2024-11-10 22:31:11,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:11,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 85 transitions. [2024-11-10 22:31:11,265 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:11,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2024-11-10 22:31:11,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 22:31:11,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 22:31:11,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 22:31:11,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:31:11,265 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:11,265 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:31:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:31:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:31:11,266 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2024-11-10 22:31:11,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:31:11,266 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-10 22:31:11,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-10 22:31:11,266 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:11,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 22:31:11,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 22:31:11,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 22:31:11,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 22:31:11,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:31:11,267 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:11,267 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 22:31:11,268 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:11,268 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-10 22:31:11,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 22:31:11,268 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:11,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 22:31:11,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:31:11 BoogieIcfgContainer [2024-11-10 22:31:11,274 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:31:11,274 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:31:11,274 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:31:11,274 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:31:11,275 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06" (3/4) ... [2024-11-10 22:31:11,276 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 22:31:11,277 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:31:11,277 INFO L158 Benchmark]: Toolchain (without parser) took 4944.15ms. Allocated memory was 146.8MB in the beginning and 270.5MB in the end (delta: 123.7MB). Free memory was 77.3MB in the beginning and 204.7MB in the end (delta: -127.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:11,277 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:11,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.90ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 65.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 22:31:11,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.27ms. Allocated memory is still 146.8MB. Free memory was 65.6MB in the beginning and 64.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:31:11,278 INFO L158 Benchmark]: Boogie Preprocessor took 20.87ms. Allocated memory is still 146.8MB. Free memory was 64.3MB in the beginning and 63.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:11,278 INFO L158 Benchmark]: IcfgBuilder took 287.60ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 62.9MB in the beginning and 193.6MB in the end (delta: -130.7MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-10 22:31:11,279 INFO L158 Benchmark]: BuchiAutomizer took 4394.95ms. Allocated memory was 224.4MB in the beginning and 270.5MB in the end (delta: 46.1MB). Free memory was 193.4MB in the beginning and 204.7MB in the end (delta: -11.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-11-10 22:31:11,279 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 270.5MB. Free memory is still 204.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:11,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.90ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 65.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.27ms. Allocated memory is still 146.8MB. Free memory was 65.6MB in the beginning and 64.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.87ms. Allocated memory is still 146.8MB. Free memory was 64.3MB in the beginning and 63.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 287.60ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 62.9MB in the beginning and 193.6MB in the end (delta: -130.7MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4394.95ms. Allocated memory was 224.4MB in the beginning and 270.5MB in the end (delta: 46.1MB). Free memory was 193.4MB in the beginning and 204.7MB in the end (delta: -11.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 270.5MB. Free memory is still 204.7MB. 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 (4 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function a and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 99 StatesRemovedByMinimization, 6 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 [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 143 mSDtfsCounter, 347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf96 smp91 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 49ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 22:31:11,298 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