./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:11:04,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:11:04,830 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:11:04,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:11:04,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:11:04,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:11:04,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:11:04,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:11:04,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:11:04,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:11:04,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:11:04,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:11:04,852 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:11:04,852 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:11:04,852 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:11:04,852 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:11:04,853 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:11:04,853 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:11:04,853 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:11:04,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:11:04,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:11:04,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:11:04,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:11:04,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:11:04,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:11:04,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:11:04,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:11:04,887 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:11:04,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:11:04,887 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:11:04,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:11:04,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:11:04,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:11:04,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:11:04,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:11:04,889 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:11:04,889 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 [2024-10-12 00:11:05,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:11:05,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:11:05,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:11:05,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:11:05,179 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:11:05,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c [2024-10-12 00:11:06,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:11:06,794 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:11:06,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-04.c [2024-10-12 00:11:06,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/caa4abe59/abfb74b15e3542f3a97fecfd7bdd1f33/FLAGbfb3e9268 [2024-10-12 00:11:06,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/caa4abe59/abfb74b15e3542f3a97fecfd7bdd1f33 [2024-10-12 00:11:06,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:11:06,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:11:06,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:06,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:11:06,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:11:06,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7784cc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06, skipping insertion in model container [2024-10-12 00:11:06,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:11:06,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:06,960 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:11:06,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:06,983 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:11:06,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06 WrapperNode [2024-10-12 00:11:06,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:06,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:06,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:11:06,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:11:06,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:06,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,006 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-10-12 00:11:07,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:07,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:11:07,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:11:07,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:11:07,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,022 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-12 00:11:07,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:11:07,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:11:07,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:11:07,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:11:07,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (1/1) ... [2024-10-12 00:11:07,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:11:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:11:07,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:11:07,185 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:11:07,187 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:11:07,290 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-12 00:11:07,290 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:11:07,310 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:11:07,310 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 00:11:07,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:07 BoogieIcfgContainer [2024-10-12 00:11:07,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:11:07,312 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:11:07,312 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:11:07,321 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:11:07,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:07,323 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:11:06" (1/3) ... [2024-10-12 00:11:07,323 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@677fedb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:07, skipping insertion in model container [2024-10-12 00:11:07,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:07,324 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:06" (2/3) ... [2024-10-12 00:11:07,327 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@677fedb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:07, skipping insertion in model container [2024-10-12 00:11:07,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:07,328 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:07" (3/3) ... [2024-10-12 00:11:07,329 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04.c [2024-10-12 00:11:07,395 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:11:07,395 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:11:07,395 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:11:07,395 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:11:07,395 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:11:07,395 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:11:07,395 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:11:07,396 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:11:07,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:07,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:07,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:07,415 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:07,415 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:07,415 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:11:07,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:07,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:07,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:07,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:07,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:07,422 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L16-2true [2024-10-12 00:11:07,423 INFO L747 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 > 5); 2#L16true assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 8#L16-2true [2024-10-12 00:11:07,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-12 00:11:07,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887531973] [2024-10-12 00:11:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1331, now seen corresponding path program 1 times [2024-10-12 00:11:07,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172828123] [2024-10-12 00:11:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 925813, now seen corresponding path program 1 times [2024-10-12 00:11:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894130599] [2024-10-12 00:11:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:07,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:07,592 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:07,593 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:07,593 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:07,593 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:07,594 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:07,594 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,594 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:07,594 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:07,594 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2024-10-12 00:11:07,594 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:07,594 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:07,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,650 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:07,651 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:07,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:11:07,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:07,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:11:07,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:11:07,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:07,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:07,706 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:07,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-12 00:11:07,719 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:07,719 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:07,719 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:07,719 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:07,719 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:07,719 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,719 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:07,720 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:07,720 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2024-10-12 00:11:07,720 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:07,720 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:07,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:07,748 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:07,752 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:07,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:11:07,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:07,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:07,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:07,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:07,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:07,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:07,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:07,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:07,780 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:07,785 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:11:07,785 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:11:07,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:07,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:07,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:11:07,793 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:07,793 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:07,794 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:07,794 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:11:07,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-12 00:11:07,811 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:07,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:07,843 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:07,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:07,862 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:11:07,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:07,909 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-12 00:11:07,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 49 transitions. Complement of second has 6 states. [2024-10-12 00:11:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:11:07,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-10-12 00:11:07,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-12 00:11:07,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:07,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-12 00:11:07,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:07,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-12 00:11:07,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2024-10-12 00:11:08,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 15 states and 21 transitions. [2024-10-12 00:11:08,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-12 00:11:08,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-12 00:11:08,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-10-12 00:11:08,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-12 00:11:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-10-12 00:11:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-12 00:11:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2024-10-12 00:11:08,029 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-12 00:11:08,030 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-12 00:11:08,030 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:11:08,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2024-10-12 00:11:08,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,031 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-12 00:11:08,031 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-12 00:11:08,032 INFO L745 eck$LassoCheckResult]: Stem: 91#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 93#L16-2 assume !!(main_~x~0#1 > 5); 80#L16 assume 10 != main_~x~0#1; 81#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-12 00:11:08,032 INFO L747 eck$LassoCheckResult]: Loop: 85#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 89#L16-2 assume !!(main_~x~0#1 > 5); 90#L16 assume 10 != main_~x~0#1; 84#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise1#1 := 0; 85#L17-5 [2024-10-12 00:11:08,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2024-10-12 00:11:08,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849007790] [2024-10-12 00:11:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:11:08,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849007790] [2024-10-12 00:11:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849007790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:11:08,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:11:08,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:11:08,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691171420] [2024-10-12 00:11:08,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:11:08,097 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:11:08,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1738900, now seen corresponding path program 1 times [2024-10-12 00:11:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917970577] [2024-10-12 00:11:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:11:08,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917970577] [2024-10-12 00:11:08,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917970577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:11:08,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:11:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:11:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704959016] [2024-10-12 00:11:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:11:08,130 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:11:08,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:11:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:11:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:11:08,137 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:11:08,152 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-10-12 00:11:08,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-10-12 00:11:08,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:11:08,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2024-10-12 00:11:08,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-12 00:11:08,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-12 00:11:08,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2024-10-12 00:11:08,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:08,154 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-10-12 00:11:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2024-10-12 00:11:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-12 00:11:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-12 00:11:08,157 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:11:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:11:08,158 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:11:08,159 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:11:08,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-12 00:11:08,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,160 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:11:08,160 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:11:08,160 INFO L745 eck$LassoCheckResult]: Stem: 122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 126#L16-2 assume !!(main_~x~0#1 > 5); 116#L16 assume 10 != main_~x~0#1; 117#L17 [2024-10-12 00:11:08,160 INFO L747 eck$LassoCheckResult]: Loop: 117#L17 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 120#L17-2 assume !(main_~x~0#1 == main_~x~0#1 - 1); 121#L17-4 havoc main_#t~bitwise1#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise1#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise1#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise1#1 >= -2147483648; 127#L17-5 main_~x~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1; 124#L16-2 assume !!(main_~x~0#1 > 5); 125#L16 assume 10 != main_~x~0#1; 117#L17 [2024-10-12 00:11:08,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-12 00:11:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636522900] [2024-10-12 00:11:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1454393131, now seen corresponding path program 1 times [2024-10-12 00:11:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150388959] [2024-10-12 00:11:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-12 00:11:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash 981190608, now seen corresponding path program 1 times [2024-10-12 00:11:08,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360413920] [2024-10-12 00:11:08,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,364 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,364 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,365 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,365 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,365 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:08,365 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,365 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,365 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,365 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2024-10-12 00:11:08,365 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,365 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,416 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,416 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:08,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:11:08,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:08,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:11:08,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:11:08,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:08,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,523 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:08,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,532 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,532 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,532 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,532 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,532 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:08,532 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,532 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,533 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,533 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2024-10-12 00:11:08,533 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,533 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,590 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,590 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:08,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:11:08,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:11:08,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:08,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:08,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:08,607 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-12 00:11:08,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:08,608 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-12 00:11:08,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:08,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:08,614 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:11:08,614 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:11:08,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:11:08,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:08,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:08,621 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:08,621 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-12 00:11:08,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,633 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:08,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:08,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:11:08,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:08,772 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-12 00:11:08,773 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 24 states and 30 transitions. Complement of second has 10 states. [2024-10-12 00:11:08,817 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 [2024-10-12 00:11:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:11:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2024-10-12 00:11:08,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-12 00:11:08,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 10 letters. Loop has 6 letters. [2024-10-12 00:11:08,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 4 letters. Loop has 12 letters. [2024-10-12 00:11:08,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:08,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2024-10-12 00:11:08,820 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:08,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2024-10-12 00:11:08,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:11:08,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:11:08,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:11:08,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:11:08,820 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:08,820 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:08,820 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:08,820 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:11:08,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:11:08,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:08,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:11:08,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:11:08 BoogieIcfgContainer [2024-10-12 00:11:08,828 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:11:08,828 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:11:08,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:11:08,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:11:08,829 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:07" (3/4) ... [2024-10-12 00:11:08,831 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:11:08,832 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:11:08,832 INFO L158 Benchmark]: Toolchain (without parser) took 2016.45ms. Allocated memory was 142.6MB in the beginning and 281.0MB in the end (delta: 138.4MB). Free memory was 74.6MB in the beginning and 211.3MB in the end (delta: -136.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2024-10-12 00:11:08,832 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:08,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.70ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 63.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:11:08,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.91ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:08,833 INFO L158 Benchmark]: Boogie Preprocessor took 25.40ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 60.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:11:08,834 INFO L158 Benchmark]: RCFGBuilder took 274.52ms. Allocated memory was 142.6MB in the beginning and 281.0MB in the end (delta: 138.4MB). Free memory was 60.6MB in the beginning and 247.8MB in the end (delta: -187.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-10-12 00:11:08,834 INFO L158 Benchmark]: BuchiAutomizer took 1516.20ms. Allocated memory is still 281.0MB. Free memory was 247.7MB in the beginning and 212.1MB in the end (delta: 35.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-10-12 00:11:08,834 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 281.0MB. Free memory was 212.1MB in the beginning and 211.3MB in the end (delta: 880.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:08,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.70ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 63.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.91ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.40ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 60.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.52ms. Allocated memory was 142.6MB in the beginning and 281.0MB in the end (delta: 138.4MB). Free memory was 60.6MB in the beginning and 247.8MB in the end (delta: -187.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1516.20ms. Allocated memory is still 281.0MB. Free memory was 247.7MB in the beginning and 212.1MB in the end (delta: 35.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 281.0MB. Free memory was 212.1MB in the beginning and 211.3MB in the end (delta: 880.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf122 smp94 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:11:08,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:09,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE