./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/and-03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 86d52fe8166d050ac731ccea951d586d64260a15b87f2be13444887a7e6d3fbf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:00:25,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:00:25,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:00:25,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:00:25,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:00:25,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:00:25,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:00:25,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:00:25,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:00:25,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:00:25,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:00:25,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:00:25,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:00:25,982 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:00:25,982 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:00:25,983 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:00:25,983 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:00:25,983 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:00:25,983 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:00:25,984 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:00:25,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:00:25,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:00:25,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:00:25,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:00:25,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:00:25,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:00:25,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:00:25,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:00:25,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:00:25,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:00:25,991 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:00:25,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:00:25,993 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:00:25,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:00:25,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:00:25,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:00:25,994 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:00:25,994 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86d52fe8166d050ac731ccea951d586d64260a15b87f2be13444887a7e6d3fbf [2024-11-17 08:00:26,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:00:26,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:00:26,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:00:26,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:00:26,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:00:26,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-03.c [2024-11-17 08:00:27,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:00:27,896 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:00:27,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-03.c [2024-11-17 08:00:27,904 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644632d69/9fe54af1593f49ea87d183dd0612ed53/FLAG668b354b1 [2024-11-17 08:00:27,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644632d69/9fe54af1593f49ea87d183dd0612ed53 [2024-11-17 08:00:27,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:00:27,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:00:27,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:27,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:00:27,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:00:27,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d8b33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27, skipping insertion in model container [2024-11-17 08:00:27,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:00:28,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:28,125 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:00:28,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:28,154 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:00:28,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28 WrapperNode [2024-11-17 08:00:28,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:28,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:28,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:00:28,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:00:28,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,185 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-17 08:00:28,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:28,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:00:28,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:00:28,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:00:28,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,206 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:00:28,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,209 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:00:28,215 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:00:28,215 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:00:28,215 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:00:28,216 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (1/1) ... [2024-11-17 08:00:28,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:28,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:00:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:00:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:00:28,347 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:00:28,349 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:00:28,451 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-17 08:00:28,451 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:00:28,485 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:00:28,485 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:00:28,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28 BoogieIcfgContainer [2024-11-17 08:00:28,486 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:00:28,489 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:00:28,489 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:00:28,493 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:00:28,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,494 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:00:27" (1/3) ... [2024-11-17 08:00:28,495 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d2df51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:28, skipping insertion in model container [2024-11-17 08:00:28,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:28" (2/3) ... [2024-11-17 08:00:28,497 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d2df51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:28, skipping insertion in model container [2024-11-17 08:00:28,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:28,497 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28" (3/3) ... [2024-11-17 08:00:28,499 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03.c [2024-11-17 08:00:28,574 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:00:28,575 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:00:28,575 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:00:28,575 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:00:28,576 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:00:28,576 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:00:28,576 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:00:28,576 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:00:28,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:28,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:28,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,605 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:28,605 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:28,606 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:00:28,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:28,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:28,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,609 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:28,609 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:28,615 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~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; 7#L14true [2024-11-17 08:00:28,616 INFO L747 eck$LassoCheckResult]: Loop: 7#L14true assume true; 13#L14-1true 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; 7#L14true [2024-11-17 08:00:28,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1504, now seen corresponding path program 1 times [2024-11-17 08:00:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168974009] [2024-11-17 08:00:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash 43658, now seen corresponding path program 1 times [2024-11-17 08:00:28,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766262877] [2024-11-17 08:00:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash 44819531, now seen corresponding path program 1 times [2024-11-17 08:00:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313440188] [2024-11-17 08:00:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,858 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:28,862 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:28,862 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:28,862 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:28,862 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:28,862 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,862 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:28,862 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:28,862 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration1_Loop [2024-11-17 08:00:28,863 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:28,863 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:28,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,996 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:28,997 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:28,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:00:29,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-17 08:00:29,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:00:29,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:29,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,084 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:29,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,089 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,089 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,089 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,090 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,090 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:29,090 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,090 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,090 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,090 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration1_Loop [2024-11-17 08:00:29,090 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,091 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,157 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,162 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:29,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:00:29,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:29,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:29,201 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:00:29,202 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:00:29,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:00:29,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:29,235 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:29,236 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:29,236 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:29,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,256 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:29,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,298 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,310 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:29,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,399 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 51 transitions. Complement of second has 6 states. [2024-11-17 08:00:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2024-11-17 08:00:29,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-17 08:00:29,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-17 08:00:29,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-17 08:00:29,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2024-11-17 08:00:29,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 18 states and 24 transitions. [2024-11-17 08:00:29,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-17 08:00:29,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-17 08:00:29,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2024-11-17 08:00:29,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:29,427 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-11-17 08:00:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2024-11-17 08:00:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2024-11-17 08:00:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2024-11-17 08:00:29,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 23 transitions. [2024-11-17 08:00:29,454 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2024-11-17 08:00:29,454 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:00:29,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2024-11-17 08:00:29,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:29,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:29,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:29,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:29,455 INFO L745 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 95#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~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; 96#L14 assume true; 100#L14-1 assume !!(0 != main_~x~0#1); 87#L16 assume main_~x~0#1 > 0; 88#L17-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 91#L17 [2024-11-17 08:00:29,456 INFO L747 eck$LassoCheckResult]: Loop: 91#L17 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 92#L14 assume true; 98#L14-1 assume !!(0 != main_~x~0#1); 103#L16 assume main_~x~0#1 > 0; 102#L17-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 91#L17 [2024-11-17 08:00:29,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1389405496, now seen corresponding path program 1 times [2024-11-17 08:00:29,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211868996] [2024-11-17 08:00:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash 31829626, now seen corresponding path program 1 times [2024-11-17 08:00:29,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532892183] [2024-11-17 08:00:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -561073245, now seen corresponding path program 1 times [2024-11-17 08:00:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026224710] [2024-11-17 08:00:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:29,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026224710] [2024-11-17 08:00:29,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026224710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:29,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:29,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:00:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854789353] [2024-11-17 08:00:29,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:29,635 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,635 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,635 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,635 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,636 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:29,636 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,636 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,636 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,636 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration2_Loop [2024-11-17 08:00:29,636 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,636 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,676 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,676 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:29,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:00:29,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:00:29,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:29,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,750 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:29,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,765 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,765 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,765 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,765 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,765 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:29,765 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,765 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,765 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,765 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration2_Loop [2024-11-17 08:00:29,766 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,766 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,802 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,802 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:29,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:00:29,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:29,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:29,823 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:29,823 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:29,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,828 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:29,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-17 08:00:29,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:29,829 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:29,830 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:29,830 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 [] [2024-11-17 08:00:29,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-17 08:00:29,850 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:29,853 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~bitwise1 [2024-11-17 08:00:29,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,899 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,945 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:00:29,945 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 8 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) [2024-11-17 08:00:29,991 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 8. 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) Result 46 states and 62 transitions. Complement of second has 8 states. [2024-11-17 08:00:29,993 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 [2024-11-17 08:00:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2024-11-17 08:00:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-11-17 08:00:29,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 5 letters. [2024-11-17 08:00:29,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:00:29,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 10 letters. [2024-11-17 08:00:29,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 62 transitions. [2024-11-17 08:00:29,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2024-11-17 08:00:30,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 35 states and 46 transitions. [2024-11-17 08:00:30,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-11-17 08:00:30,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-17 08:00:30,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 46 transitions. [2024-11-17 08:00:30,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,003 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 46 transitions. [2024-11-17 08:00:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 46 transitions. [2024-11-17 08:00:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-17 08:00:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2024-11-17 08:00:30,008 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-11-17 08:00:30,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:30,013 INFO L87 Difference]: Start difference. First operand 33 states and 43 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) [2024-11-17 08:00:30,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:30,046 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-11-17 08:00:30,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2024-11-17 08:00:30,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2024-11-17 08:00:30,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 30 states and 36 transitions. [2024-11-17 08:00:30,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-17 08:00:30,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-17 08:00:30,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2024-11-17 08:00:30,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-11-17 08:00:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2024-11-17 08:00:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2024-11-17 08:00:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-17 08:00:30,054 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-17 08:00:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:30,056 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-17 08:00:30,056 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:00:30,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2024-11-17 08:00:30,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:30,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,058 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:30,058 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,059 INFO L745 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 284#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~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; 285#L14 assume true; 288#L14-1 assume !!(0 != main_~x~0#1); 293#L16 assume main_~x~0#1 > 0; 291#L17-4 [2024-11-17 08:00:30,059 INFO L747 eck$LassoCheckResult]: Loop: 291#L17-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 286#L17-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 281#L17-2 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; 282#L17 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 278#L14 assume true; 287#L14-1 assume !!(0 != main_~x~0#1); 290#L16 assume main_~x~0#1 > 0; 291#L17-4 [2024-11-17 08:00:30,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash 44819532, now seen corresponding path program 1 times [2024-11-17 08:00:30,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473176754] [2024-11-17 08:00:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1387092220, now seen corresponding path program 1 times [2024-11-17 08:00:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660420457] [2024-11-17 08:00:30,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash 76618321, now seen corresponding path program 1 times [2024-11-17 08:00:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096409694] [2024-11-17 08:00:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,147 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,148 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,148 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,148 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,148 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:30,148 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,148 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,148 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,149 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration3_Loop [2024-11-17 08:00:30,149 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,149 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,171 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,171 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:30,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-17 08:00:30,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,210 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-17 08:00:30,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:30,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,271 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:30,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,276 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,276 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,276 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,276 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,276 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:30,276 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,277 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,277 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,277 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration3_Loop [2024-11-17 08:00:30,277 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,277 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,297 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,297 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:30,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:00:30,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:30,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,315 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:30,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:30,319 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:30,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,322 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:00:30,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:30,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:30,324 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:30,324 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:30,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,340 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:30,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,559 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-17 08:00:30,560 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-17 08:00:30,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:00:30,657 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Result 43 states and 54 transitions. Complement of second has 11 states. [2024-11-17 08:00:30,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-17 08:00:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-11-17 08:00:30,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 7 letters. [2024-11-17 08:00:30,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 12 letters. Loop has 7 letters. [2024-11-17 08:00:30,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:00:30,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 14 letters. [2024-11-17 08:00:30,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2024-11-17 08:00:30,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-17 08:00:30,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 54 transitions. [2024-11-17 08:00:30,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-17 08:00:30,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-17 08:00:30,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2024-11-17 08:00:30,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,675 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 54 transitions. [2024-11-17 08:00:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2024-11-17 08:00:30,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-17 08:00:30,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-11-17 08:00:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-17 08:00:30,685 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-17 08:00:30,685 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-17 08:00:30,686 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:00:30,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2024-11-17 08:00:30,686 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-17 08:00:30,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,687 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,687 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-11-17 08:00:30,687 INFO L745 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 418#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~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; 419#L14 assume true; 431#L14-1 assume !!(0 != main_~x~0#1); 430#L16 assume main_~x~0#1 > 0; 429#L17-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 410#L17 [2024-11-17 08:00:30,687 INFO L747 eck$LassoCheckResult]: Loop: 410#L17 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 411#L14 assume true; 423#L14-1 assume !!(0 != main_~x~0#1); 425#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; 439#L14 assume true; 443#L14-1 assume !!(0 != main_~x~0#1); 438#L16 assume main_~x~0#1 > 0; 440#L17-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 410#L17 [2024-11-17 08:00:30,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1389405496, now seen corresponding path program 2 times [2024-11-17 08:00:30,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289162086] [2024-11-17 08:00:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash -951997023, now seen corresponding path program 1 times [2024-11-17 08:00:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903212208] [2024-11-17 08:00:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:30,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903212208] [2024-11-17 08:00:30,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903212208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:00:30,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622667430] [2024-11-17 08:00:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:00:30,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,744 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:00:30,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 08:00:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:00:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622667430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:00:30,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:00:30,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-17 08:00:30,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773372787] [2024-11-17 08:00:30,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,826 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:00:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:30,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:30,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:30,827 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:30,855 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-17 08:00:30,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 44 transitions. [2024-11-17 08:00:30,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:30,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 29 states and 33 transitions. [2024-11-17 08:00:30,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-17 08:00:30,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-17 08:00:30,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2024-11-17 08:00:30,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,859 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-17 08:00:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2024-11-17 08:00:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2024-11-17 08:00:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-17 08:00:30,861 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-17 08:00:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:00:30,862 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-17 08:00:30,863 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:00:30,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2024-11-17 08:00:30,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:30,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,864 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:00:30,864 INFO L745 eck$LassoCheckResult]: Stem: 546#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 547#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_#t~post2#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 548#L14 assume true; 555#L14-1 assume !!(0 != main_~x~0#1); 554#L16 assume main_~x~0#1 > 0; 553#L17-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 542#L17 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 538#L14 [2024-11-17 08:00:30,864 INFO L747 eck$LassoCheckResult]: Loop: 538#L14 assume true; 551#L14-1 assume !!(0 != main_~x~0#1); 537#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; 538#L14 [2024-11-17 08:00:30,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,865 INFO L85 PathProgramCache]: Analyzing trace with hash 121897419, now seen corresponding path program 2 times [2024-11-17 08:00:30,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168398514] [2024-11-17 08:00:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash 43658, now seen corresponding path program 2 times [2024-11-17 08:00:30,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849467713] [2024-11-17 08:00:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2096309120, now seen corresponding path program 1 times [2024-11-17 08:00:30,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773027545] [2024-11-17 08:00:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:30,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773027545] [2024-11-17 08:00:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773027545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:30,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:30,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:00:30,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664289325] [2024-11-17 08:00:30,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,959 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,959 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,959 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,959 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,959 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:30,960 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,960 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,960 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,960 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration5_Loop [2024-11-17 08:00:30,960 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,960 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,999 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,999 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:31,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,003 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-17 08:00:31,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,025 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:31,025 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:31,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-17 08:00:31,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,044 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-17 08:00:31,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,084 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-17 08:00:31,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:31,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,113 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:31,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:00:31,117 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:31,117 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:31,117 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:31,117 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:31,117 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:31,118 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,118 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:31,118 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:31,118 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-03.c_Iteration5_Loop [2024-11-17 08:00:31,118 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:31,118 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:31,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,168 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:31,168 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:31,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,171 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:00:31,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:31,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:31,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:31,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:31,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:31,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:31,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:31,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:31,194 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:31,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,209 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:00:31,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:00:31,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:31,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:31,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:31,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:31,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:31,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:31,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:31,225 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:31,228 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:00:31,228 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:00:31,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,230 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:00:31,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:00:31,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:31,232 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:31,232 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:31,232 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:31,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,245 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:31,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,287 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:31,298 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-17 08:00:31,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:31,316 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 53 transitions. Complement of second has 5 states. [2024-11-17 08:00:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-17 08:00:31,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-17 08:00:31,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-17 08:00:31,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-17 08:00:31,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 53 transitions. [2024-11-17 08:00:31,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-17 08:00:31,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 30 states and 34 transitions. [2024-11-17 08:00:31,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-17 08:00:31,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-17 08:00:31,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 34 transitions. [2024-11-17 08:00:31,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:31,321 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-17 08:00:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 34 transitions. [2024-11-17 08:00:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2024-11-17 08:00:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-17 08:00:31,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-17 08:00:31,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:31,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:00:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:00:31,324 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:31,350 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-17 08:00:31,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2024-11-17 08:00:31,350 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:31,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2024-11-17 08:00:31,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:00:31,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:00:31,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:00:31,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:31,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:31,351 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:00:31,355 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:31,355 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:00:31,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:00:31,355 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:31,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:00:31,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:00:31 BoogieIcfgContainer [2024-11-17 08:00:31,367 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:00:31,368 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:00:31,368 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:00:31,368 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:00:31,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:28" (3/4) ... [2024-11-17 08:00:31,370 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:00:31,372 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:00:31,372 INFO L158 Benchmark]: Toolchain (without parser) took 3452.55ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 104.4MB in the beginning and 150.2MB in the end (delta: -45.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-17 08:00:31,373 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:31,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.48ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 92.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:00:31,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.98ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:00:31,374 INFO L158 Benchmark]: Boogie Preprocessor took 25.38ms. Allocated memory is still 159.4MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:31,374 INFO L158 Benchmark]: IcfgBuilder took 271.00ms. Allocated memory is still 159.4MB. Free memory was 89.2MB in the beginning and 79.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:00:31,374 INFO L158 Benchmark]: BuchiAutomizer took 2878.62ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 78.8MB in the beginning and 150.2MB in the end (delta: -71.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:31,375 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 224.4MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:31,380 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.48ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 92.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.98ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.38ms. Allocated memory is still 159.4MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 271.00ms. Allocated memory is still 159.4MB. Free memory was 89.2MB in the beginning and 79.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2878.62ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 78.8MB in the beginning and 150.2MB in the end (delta: -71.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 224.4MB. Free memory is still 150.2MB. 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, 4 deterministic, 0 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 6 locations. One deterministic module has affine ranking function ((long) -1 * x) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 37 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 59 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf94 smp82 dnf100 smp100 tf115 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 73ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2024-11-17 08:00:31,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-17 08:00:31,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE