./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-03.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 86d52fe8166d050ac731ccea951d586d64260a15b87f2be13444887a7e6d3fbf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:11:04,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:11:04,402 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:11:04,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:11:04,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:11:04,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:11:04,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:11:04,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:11:04,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:11:04,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:11:04,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:11:04,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:11:04,437 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:11:04,438 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:11:04,438 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:11:04,438 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:11:04,438 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:11:04,438 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:11:04,439 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:11:04,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:11:04,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:11:04,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:11:04,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:11:04,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:11:04,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:11:04,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:11:04,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:11:04,441 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:11:04,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:11:04,442 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:11:04,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:11:04,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:11:04,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:11:04,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:11:04,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:11:04,443 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:11:04,444 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86d52fe8166d050ac731ccea951d586d64260a15b87f2be13444887a7e6d3fbf [2024-10-12 00:11:04,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:11:04,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:11:04,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:11:04,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:11:04,703 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:11:04,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-03.c [2024-10-12 00:11:06,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:11:06,324 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:11:06,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-03.c [2024-10-12 00:11:06,330 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/032264f9d/bc1fd241db524ff28866ef2566a2a06b/FLAG49431b29d [2024-10-12 00:11:06,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/032264f9d/bc1fd241db524ff28866ef2566a2a06b [2024-10-12 00:11:06,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:11:06,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:11:06,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:06,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:11:06,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:11:06,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a2a65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06, skipping insertion in model container [2024-10-12 00:11:06,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:11:06,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:06,545 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:11:06,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:06,573 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:11:06,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06 WrapperNode [2024-10-12 00:11:06,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:06,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:06,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:11:06,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:11:06,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,604 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-10-12 00:11:06,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:06,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:11:06,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:11:06,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:11:06,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,622 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-12 00:11:06,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:11:06,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:11:06,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:11:06,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:11:06,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:06,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:06,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:06,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:11:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:11:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:11:06,751 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:11:06,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:11:06,870 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-12 00:11:06,870 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:11:06,880 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:11:06,880 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 00:11:06,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:06 BoogieIcfgContainer [2024-10-12 00:11:06,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:11:06,882 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:11:06,882 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:11:06,885 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:11:06,886 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:06,886 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:11:06" (1/3) ... [2024-10-12 00:11:06,887 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cc232e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:06, skipping insertion in model container [2024-10-12 00:11:06,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:06,887 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (2/3) ... [2024-10-12 00:11:06,887 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cc232e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:06, skipping insertion in model container [2024-10-12 00:11:06,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:06,887 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:06" (3/3) ... [2024-10-12 00:11:06,889 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03.c [2024-10-12 00:11:06,933 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:11:06,933 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:11:06,933 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:11:06,933 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:11:06,933 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:11:06,933 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:11:06,934 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:11:06,934 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:11:06,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:06,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:06,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:06,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:06,954 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:06,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:06,954 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:11:06,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:06,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:06,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:06,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:06,956 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:06,956 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:06,963 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L16-2true [2024-10-12 00:11:06,963 INFO L747 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(0 != main_~x~0#1); 2#L16true assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 8#L16-2true [2024-10-12 00:11:06,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-12 00:11:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995535868] [2024-10-12 00:11:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-10-12 00:11:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498363898] [2024-10-12 00:11:07,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,093 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-10-12 00:11:07,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086775087] [2024-10-12 00:11:07,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,186 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:07,187 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:07,187 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:07,187 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:07,187 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:07,187 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,187 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:07,187 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:07,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration1_Loop [2024-10-12 00:11:07,188 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:07,188 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:07,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,278 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:07,279 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:07,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:11:07,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:07,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:07,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:11:07,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:07,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,368 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:07,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-12 00:11:07,374 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:07,375 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:07,375 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:07,375 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:07,375 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:07,375 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,376 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:07,376 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:07,376 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration1_Loop [2024-10-12 00:11:07,376 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:07,376 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:07,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,429 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:07,433 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:07,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:11:07,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:07,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:07,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:07,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:07,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:07,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:07,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:07,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:07,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:07,480 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:11:07,480 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:11:07,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:11:07,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:07,505 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:07,505 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:07,506 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:11:07,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:07,525 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:07,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:07,578 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:07,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:07,597 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:11:07,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:07,635 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:11:07,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 33 states and 49 transitions. Complement of second has 6 states. [2024-10-12 00:11:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:07,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-10-12 00:11:07,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-12 00:11:07,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:07,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-12 00:11:07,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:07,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-12 00:11:07,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:07,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2024-10-12 00:11:07,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:07,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 15 states and 21 transitions. [2024-10-12 00:11:07,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-12 00:11:07,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-12 00:11:07,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-10-12 00:11:07,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:07,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-12 00:11:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-10-12 00:11:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-12 00:11:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 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) [2024-10-12 00:11:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2024-10-12 00:11:07,731 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-12 00:11:07,731 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-12 00:11:07,731 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:11:07,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2024-10-12 00:11:07,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:07,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:07,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:07,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-12 00:11:07,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-12 00:11:07,735 INFO L745 eck$LassoCheckResult]: Stem: 91#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~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; 93#L16-2 assume !!(0 != main_~x~0#1); 80#L16 assume main_~x~0#1 > 0; 81#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-12 00:11:07,735 INFO L747 eck$LassoCheckResult]: Loop: 85#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 89#L16-2 assume !!(0 != main_~x~0#1); 90#L16 assume main_~x~0#1 > 0; 84#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-12 00:11:07,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-12 00:11:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928763687] [2024-10-12 00:11:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1738900, now seen corresponding path program 1 times [2024-10-12 00:11:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353059887] [2024-10-12 00:11:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash 584069118, now seen corresponding path program 1 times [2024-10-12 00:11:07,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646935645] [2024-10-12 00:11:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:07,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:11:07,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646935645] [2024-10-12 00:11:07,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646935645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:11:07,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:11:07,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:11:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165295716] [2024-10-12 00:11:07,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:11:07,893 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:07,894 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:07,894 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:07,894 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:07,894 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:07,894 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,894 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:07,894 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:07,894 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration2_Loop [2024-10-12 00:11:07,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:07,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:07,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,922 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:07,922 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:07,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:11:07,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:07,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,941 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:11:07,942 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:11:07,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:11:07,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,956 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:11:07,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:07,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:07,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,983 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:11:07,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:07,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,000 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:08,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:11:08,014 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,014 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,014 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,014 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,014 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:08,014 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,014 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,014 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,014 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration2_Loop [2024-10-12 00:11:08,014 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,014 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,050 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,050 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:08,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:11:08,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:08,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:08,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:08,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:08,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:08,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:08,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:08,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:08,090 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:11:08,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,107 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:11:08,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:08,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:08,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:08,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:08,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:08,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:08,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:08,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:08,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:08,127 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:11:08,127 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:11:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,129 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:11:08,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:08,131 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:08,131 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:08,131 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~bitwise1#1) = 1*ULTIMATE.start_main_#t~bitwise1#1 Supporting invariants [] [2024-10-12 00:11:08,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,146 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~bitwise1 [2024-10-12 00:11:08,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,185 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,217 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:11:08,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 20 transitions. cyclomatic complexity: 8 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) [2024-10-12 00:11:08,259 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 20 transitions. cyclomatic complexity: 8. 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 39 states and 55 transitions. Complement of second has 8 states. [2024-10-12 00:11:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:08,261 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) [2024-10-12 00:11:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2024-10-12 00:11:08,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-12 00:11:08,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-12 00:11:08,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 8 letters. [2024-10-12 00:11:08,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 55 transitions. [2024-10-12 00:11:08,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2024-10-12 00:11:08,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 29 states and 40 transitions. [2024-10-12 00:11:08,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-10-12 00:11:08,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-12 00:11:08,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 40 transitions. [2024-10-12 00:11:08,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,268 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 40 transitions. [2024-10-12 00:11:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 40 transitions. [2024-10-12 00:11:08,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2024-10-12 00:11:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-10-12 00:11:08,272 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-10-12 00:11:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:11:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:11:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:11:08,276 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. 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) [2024-10-12 00:11:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:11:08,302 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2024-10-12 00:11:08,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-10-12 00:11:08,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-10-12 00:11:08,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions. [2024-10-12 00:11:08,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-12 00:11:08,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-12 00:11:08,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2024-10-12 00:11:08,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,307 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-10-12 00:11:08,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2024-10-12 00:11:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2024-10-12 00:11:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2024-10-12 00:11:08,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-10-12 00:11:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:11:08,311 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-10-12 00:11:08,311 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:11:08,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2024-10-12 00:11:08,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:11:08,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:11:08,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-10-12 00:11:08,313 INFO L745 eck$LassoCheckResult]: Stem: 251#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 253#L16-2 assume !!(0 != main_~x~0#1); 250#L16 assume main_~x~0#1 > 0; 245#L17 [2024-10-12 00:11:08,313 INFO L747 eck$LassoCheckResult]: Loop: 245#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 246#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 255#L16-2 assume !!(0 != main_~x~0#1); 241#L16 assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 242#L16-2 assume !!(0 != main_~x~0#1); 249#L16 assume main_~x~0#1 > 0; 245#L17 [2024-10-12 00:11:08,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-12 00:11:08,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537932699] [2024-10-12 00:11:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1399490240, now seen corresponding path program 1 times [2024-10-12 00:11:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621411582] [2024-10-12 00:11:08,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:11:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621411582] [2024-10-12 00:11:08,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621411582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:11:08,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:11:08,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:11:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424648176] [2024-10-12 00:11:08,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:11:08,404 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:11:08,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:11:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:11:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:11:08,405 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:11:08,428 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2024-10-12 00:11:08,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2024-10-12 00:11:08,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 14 transitions. [2024-10-12 00:11:08,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-12 00:11:08,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-12 00:11:08,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-10-12 00:11:08,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-12 00:11:08,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-10-12 00:11:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-12 00:11:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-10-12 00:11:08,434 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-12 00:11:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:11:08,435 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-12 00:11:08,437 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:11:08,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-10-12 00:11:08,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,438 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-12 00:11:08,438 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:11:08,438 INFO L745 eck$LassoCheckResult]: Stem: 286#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 288#L16-2 assume !!(0 != main_~x~0#1); 279#L16 [2024-10-12 00:11:08,439 INFO L747 eck$LassoCheckResult]: Loop: 279#L16 assume main_~x~0#1 > 0; 280#L17 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 283#L17-2 assume !(main_~x~0#1 == main_~x~0#1 - 1); 284#L17-4 havoc main_#t~bitwise1#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise1#1 >= -2147483648; 289#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 285#L16-2 assume !!(0 != main_~x~0#1); 279#L16 [2024-10-12 00:11:08,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-12 00:11:08,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217974050] [2024-10-12 00:11:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1306598551, now seen corresponding path program 1 times [2024-10-12 00:11:08,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326734192] [2024-10-12 00:11:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash 585840638, now seen corresponding path program 1 times [2024-10-12 00:11:08,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366278775] [2024-10-12 00:11:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,539 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,540 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,540 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,540 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,541 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:08,541 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,541 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,541 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,541 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration4_Loop [2024-10-12 00:11:08,541 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,541 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,566 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,566 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:08,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,568 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:11:08,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:08,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,584 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:11:08,584 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise1#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:11:08,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-12 00:11:08,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,598 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:11:08,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:08,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-12 00:11:08,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,630 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:11:08,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:08,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,699 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:08,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,706 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,706 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,706 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,706 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,706 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:08,706 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,706 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,707 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,707 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration4_Loop [2024-10-12 00:11:08,707 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,707 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-12 00:11:08,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,804 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,805 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:08,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,806 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:11:08,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:08,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:08,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:08,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:08,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:08,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:08,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:08,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:08,826 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:08,829 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:11:08,829 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:11:08,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,831 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:11:08,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:08,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:08,835 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:08,835 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:11:08,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:11:08,850 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:08,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,946 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 [2024-10-12 00:11:08,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2024-10-12 00:11:08,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 25 states and 28 transitions. Complement of second has 9 states. [2024-10-12 00:11:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2024-10-12 00:11:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2024-10-12 00:11:08,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-12 00:11:08,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-12 00:11:08,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2024-10-12 00:11:08,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2024-10-12 00:11:08,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 12 states and 13 transitions. [2024-10-12 00:11:08,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-12 00:11:08,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-12 00:11:08,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2024-10-12 00:11:08,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,982 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-12 00:11:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2024-10-12 00:11:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-12 00:11:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-12 00:11:08,983 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-12 00:11:08,983 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-12 00:11:08,984 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:11:08,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2024-10-12 00:11:08,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2024-10-12 00:11:08,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:11:08,985 INFO L745 eck$LassoCheckResult]: Stem: 377#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~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; 376#L16-2 assume !!(0 != main_~x~0#1); 372#L16 assume !(main_~x~0#1 > 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 373#L16-2 assume !!(0 != main_~x~0#1); 370#L16 [2024-10-12 00:11:08,986 INFO L747 eck$LassoCheckResult]: Loop: 370#L16 assume main_~x~0#1 > 0; 371#L17 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 374#L17-2 assume !(main_~x~0#1 == main_~x~0#1 - 1); 375#L17-4 havoc main_#t~bitwise1#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise1#1 >= -2147483648; 379#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 380#L16-2 assume !!(0 != main_~x~0#1); 370#L16 [2024-10-12 00:11:08,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,986 INFO L85 PathProgramCache]: Analyzing trace with hash 28700214, now seen corresponding path program 2 times [2024-10-12 00:11:08,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354107977] [2024-10-12 00:11:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:09,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1306598551, now seen corresponding path program 2 times [2024-10-12 00:11:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677567993] [2024-10-12 00:11:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:09,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1922486028, now seen corresponding path program 1 times [2024-10-12 00:11:09,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:09,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467232777] [2024-10-12 00:11:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:11:09,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467232777] [2024-10-12 00:11:09,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467232777] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:11:09,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906269032] [2024-10-12 00:11:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:11:09,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,069 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-12 00:11:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:11:09,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906269032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:11:09,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:11:09,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-12 00:11:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421035385] [2024-10-12 00:11:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:11:09,185 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:09,185 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:09,185 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:09,185 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:09,185 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:09,185 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,185 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:09,185 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:09,185 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration5_Loop [2024-10-12 00:11:09,185 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:09,185 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:09,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,216 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:09,216 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:09,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,220 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:11:09,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:09,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:09,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-12 00:11:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,248 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:11:09,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:09,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:09,299 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:09,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-12 00:11:09,308 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:09,308 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:09,308 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:09,308 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:09,308 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:09,308 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,308 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:09,308 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:09,308 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration5_Loop [2024-10-12 00:11:09,308 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:09,308 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:09,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,351 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:09,351 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:09,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,356 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:11:09,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:09,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:09,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:09,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:09,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:09,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:09,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:09,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:09,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:09,382 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:11:09,382 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:11:09,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,398 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-12 00:11:09,399 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:09,400 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:09,400 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:09,400 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:11:09,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-12 00:11:09,418 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:09,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,506 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 [2024-10-12 00:11:09,506 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 12 states and 13 transitions. Complement of second has 3 states. [2024-10-12 00:11:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-12 00:11:09,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-12 00:11:09,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,511 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:11:09,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,598 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-12 00:11:09,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,603 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 12 states and 13 transitions. Complement of second has 3 states. [2024-10-12 00:11:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-12 00:11:09,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-12 00:11:09,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,604 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:11:09,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,683 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 4 loop predicates [2024-10-12 00:11:09,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,710 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 18 states and 20 transitions. Complement of second has 8 states. [2024-10-12 00:11:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 00:11:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-10-12 00:11:09,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-12 00:11:09,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 11 letters. Loop has 6 letters. [2024-10-12 00:11:09,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 12 letters. [2024-10-12 00:11:09,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2024-10-12 00:11:09,712 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:09,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2024-10-12 00:11:09,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:11:09,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:11:09,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:11:09,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:11:09,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:09,712 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:11:09,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:11:09,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:11:09,713 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:09,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:11:09,713 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:09,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:11:09,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:11:09,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:11:09,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 00:11:09,714 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:09,714 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:11:09,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:11:09,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:09,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:11:09,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:11:09 BoogieIcfgContainer [2024-10-12 00:11:09,721 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:11:09,721 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:11:09,721 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:11:09,721 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:11:09,721 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:06" (3/4) ... [2024-10-12 00:11:09,723 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:11:09,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:11:09,724 INFO L158 Benchmark]: Toolchain (without parser) took 3379.21ms. Allocated memory is still 172.0MB. Free memory was 104.1MB in the beginning and 79.4MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-12 00:11:09,724 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 172.0MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:09,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.00ms. Allocated memory is still 172.0MB. Free memory was 103.9MB in the beginning and 93.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:11:09,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.14ms. Allocated memory is still 172.0MB. Free memory was 92.9MB in the beginning and 91.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:11:09,725 INFO L158 Benchmark]: Boogie Preprocessor took 25.42ms. Allocated memory is still 172.0MB. Free memory was 91.5MB in the beginning and 90.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:09,725 INFO L158 Benchmark]: RCFGBuilder took 249.97ms. Allocated memory is still 172.0MB. Free memory was 90.0MB in the beginning and 139.9MB in the end (delta: -49.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-10-12 00:11:09,726 INFO L158 Benchmark]: BuchiAutomizer took 2839.04ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 79.6MB in the end (delta: 60.2MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2024-10-12 00:11:09,726 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 172.0MB. Free memory was 79.6MB in the beginning and 79.4MB in the end (delta: 196.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:09,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 172.0MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.00ms. Allocated memory is still 172.0MB. Free memory was 103.9MB in the beginning and 93.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.14ms. Allocated memory is still 172.0MB. Free memory was 92.9MB in the beginning and 91.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.42ms. Allocated memory is still 172.0MB. Free memory was 91.5MB in the beginning and 90.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.97ms. Allocated memory is still 172.0MB. Free memory was 90.0MB in the beginning and 139.9MB in the end (delta: -49.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2839.04ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 79.6MB in the end (delta: 60.2MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 172.0MB. Free memory was 79.6MB in the beginning and 79.4MB in the end (delta: 196.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~bitwise1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * x) and consists of 4 locations. One deterministic module has affine ranking function null 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. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 49 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf95 smp69 dnf100 smp100 tf116 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 71ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:11:09,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:09,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-12 00:11:10,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:10,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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