./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 4b2397f02ca31d86bec1660af6a105f36402aae0113477a6332673f13a213eff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:43:32,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:43:32,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:43:32,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:43:32,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:43:32,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:43:32,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:43:32,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:43:32,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:43:32,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:43:32,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:43:32,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:43:32,170 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:43:32,170 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:43:32,172 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:43:32,173 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:43:32,173 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:43:32,173 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:43:32,174 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:43:32,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:43:32,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:43:32,178 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:43:32,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:43:32,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:43:32,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:43:32,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:43:32,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:43:32,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:43:32,180 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:43:32,180 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:43:32,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:43:32,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:43:32,181 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:43:32,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:43:32,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:43:32,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:43:32,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:43:32,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:43:32,186 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:43:32,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b2397f02ca31d86bec1660af6a105f36402aae0113477a6332673f13a213eff [2024-10-13 17:43:32,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:43:32,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:43:32,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:43:32,483 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:43:32,485 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:43:32,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1b.c [2024-10-13 17:43:33,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:43:34,105 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:43:34,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1b.c [2024-10-13 17:43:34,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2649fac3e/4a14088ac91c4dbeb13bbe79233402ee/FLAG96997a187 [2024-10-13 17:43:34,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2649fac3e/4a14088ac91c4dbeb13bbe79233402ee [2024-10-13 17:43:34,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:43:34,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:43:34,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:43:34,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:43:34,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:43:34,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f08dac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34, skipping insertion in model container [2024-10-13 17:43:34,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:43:34,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:43:34,332 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:43:34,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:43:34,361 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:43:34,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34 WrapperNode [2024-10-13 17:43:34,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:43:34,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:43:34,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:43:34,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:43:34,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,387 INFO L138 Inliner]: procedures = 12, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-10-13 17:43:34,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:43:34,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:43:34,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:43:34,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:43:34,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,409 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-10-13 17:43:34,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:43:34,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:43:34,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:43:34,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:43:34,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (1/1) ... [2024-10-13 17:43:34,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:34,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:34,459 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) [2024-10-13 17:43:34,463 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 [2024-10-13 17:43:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 17:43:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 17:43:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:43:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_19_to_19_0 [2024-10-13 17:43:34,515 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_19_to_19_0 [2024-10-13 17:43:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:43:34,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:43:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 17:43:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 17:43:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:43:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 17:43:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 17:43:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 17:43:34,592 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:43:34,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:43:34,732 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-13 17:43:34,734 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:43:34,749 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:43:34,750 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 17:43:34,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:43:34 BoogieIcfgContainer [2024-10-13 17:43:34,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:43:34,754 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:43:34,754 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:43:34,758 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:43:34,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:43:34,760 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:43:34" (1/3) ... [2024-10-13 17:43:34,761 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37f972f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:43:34, skipping insertion in model container [2024-10-13 17:43:34,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:43:34,761 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:43:34" (2/3) ... [2024-10-13 17:43:34,762 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37f972f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:43:34, skipping insertion in model container [2024-10-13 17:43:34,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:43:34,762 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:43:34" (3/3) ... [2024-10-13 17:43:34,764 INFO L332 chiAutomizerObserver]: Analyzing ICFG recursified_nested_1b.c [2024-10-13 17:43:34,824 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:43:34,825 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:43:34,826 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:43:34,826 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:43:34,826 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:43:34,826 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:43:34,826 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:43:34,826 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:43:34,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 17:43:34,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 17:43:34,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:43:34,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:43:34,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:43:34,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 17:43:34,858 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:43:34,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 17:43:34,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 17:43:34,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:43:34,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:43:34,861 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:43:34,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 17:43:34,871 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem7#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#1(6, main_~#a~0#1.base, main_~#a~0#1.offset, 4);call write~int#1(0, main_~#a~0#1.base, main_~#a~0#1.offset, 4); 4#L44true call func_to_recursive_line_19_to_19_0(main_~#a~0#1.base, main_~#a~0#1.offset);< 15#$Ultimate##0true [2024-10-13 17:43:34,871 INFO L747 eck$LassoCheckResult]: Loop: 15#$Ultimate##0true ~a.base, ~a.offset := #in~a.base, #in~a.offset;call #t~mem4 := read~int#1(~a.base, ~a.offset, 4); 14#L25true assume #t~mem4 < 6;havoc #t~mem4;call #t~mem5 := read~int#1(~a.base, ~a.offset, 4);#t~pre6 := 1 + #t~mem5;call write~int#1(1 + #t~mem5, ~a.base, ~a.offset, 4);havoc #t~mem5;havoc #t~pre6; 10#L32true call func_to_recursive_line_19_to_19_0(~a.base, ~a.offset);< 15#$Ultimate##0true [2024-10-13 17:43:34,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:43:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 38809, now seen corresponding path program 1 times [2024-10-13 17:43:34,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:43:34,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719400470] [2024-10-13 17:43:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:43:34,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:43:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:43:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:43:35,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:43:35,061 INFO L85 PathProgramCache]: Analyzing trace with hash 29910, now seen corresponding path program 1 times [2024-10-13 17:43:35,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:43:35,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383506986] [2024-10-13 17:43:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:43:35,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:43:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:43:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:43:35,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:43:35,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1156159038, now seen corresponding path program 1 times [2024-10-13 17:43:35,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:43:35,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499904479] [2024-10-13 17:43:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:43:35,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:43:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:43:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:43:35,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:43:36,055 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:43:36,056 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:43:36,056 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:43:36,056 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:43:36,057 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 17:43:36,057 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:36,058 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:43:36,058 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:43:36,058 INFO L132 ssoRankerPreferences]: Filename of dumped script: recursified_nested_1b.c_Iteration1_Lasso [2024-10-13 17:43:36,058 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:43:36,059 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:43:36,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:43:36,838 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:43:36,842 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 17:43:36,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:36,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:36,846 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) [2024-10-13 17:43:36,848 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 [2024-10-13 17:43:36,849 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 [2024-10-13 17:43:36,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:36,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:36,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:36,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:36,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:36,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:36,873 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:43:36,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-13 17:43:36,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:36,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:36,894 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) [2024-10-13 17:43:36,896 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 [2024-10-13 17:43:36,897 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 [2024-10-13 17:43:36,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:36,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:36,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:36,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:36,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:36,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:36,923 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:43:36,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-13 17:43:36,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:36,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:36,943 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) [2024-10-13 17:43:36,945 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 [2024-10-13 17:43:36,946 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 [2024-10-13 17:43:36,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:36,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:36,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:36,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:36,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:36,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:36,971 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:43:36,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-13 17:43:36,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:36,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:36,991 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) [2024-10-13 17:43:36,993 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 [2024-10-13 17:43:36,994 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 [2024-10-13 17:43:37,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:37,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:37,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:37,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:37,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:37,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:37,020 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:43:37,035 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 [2024-10-13 17:43:37,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:37,038 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) [2024-10-13 17:43:37,040 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 [2024-10-13 17:43:37,041 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 [2024-10-13 17:43:37,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:37,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:37,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:37,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:37,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:37,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:37,061 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:43:37,076 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 [2024-10-13 17:43:37,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:37,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:37,079 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) [2024-10-13 17:43:37,081 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 [2024-10-13 17:43:37,082 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 [2024-10-13 17:43:37,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:43:37,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:43:37,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:43:37,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:43:37,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 17:43:37,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 17:43:37,120 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 17:43:37,175 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-10-13 17:43:37,176 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-10-13 17:43:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:43:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:43:37,202 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) [2024-10-13 17:43:37,204 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 [2024-10-13 17:43:37,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 17:43:37,221 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-13 17:43:37,222 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 17:43:37,222 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#1 func_to_recursive_line_19_to_19_0_#in~a.base) func_to_recursive_line_19_to_19_0_#in~a.offset)_1) = -2*v_rep(select (select #memory_int#1 func_to_recursive_line_19_to_19_0_#in~a.base) func_to_recursive_line_19_to_19_0_#in~a.offset)_1 + 11 Supporting invariants [] [2024-10-13 17:43:37,238 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 [2024-10-13 17:43:37,259 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-10-13 17:43:37,267 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-13 17:43:37,268 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-10-13 17:43:37,268 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~a!base,]]] [2024-10-13 17:43:37,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:43:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:43:37,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 17:43:37,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:43:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:43:37,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 17:43:37,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:43:37,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-10-13 17:43:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:43:37,464 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-13 17:43:37,466 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:43:37,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 16 states. [2024-10-13 17:43:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-13 17:43:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:43:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-10-13 17:43:37,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-13 17:43:37,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:43:37,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-13 17:43:37,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:43:37,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-13 17:43:37,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:43:37,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2024-10-13 17:43:37,593 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:43:37,596 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-10-13 17:43:37,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 17:43:37,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 17:43:37,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 17:43:37,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:43:37,597 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:43:37,598 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:43:37,598 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:43:37,598 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:43:37,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 17:43:37,598 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:43:37,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 17:43:37,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:43:37 BoogieIcfgContainer [2024-10-13 17:43:37,610 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:43:37,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:43:37,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:43:37,611 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:43:37,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:43:34" (3/4) ... [2024-10-13 17:43:37,614 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 17:43:37,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:43:37,617 INFO L158 Benchmark]: Toolchain (without parser) took 3487.69ms. Allocated memory is still 178.3MB. Free memory was 109.4MB in the beginning and 78.5MB in the end (delta: 30.9MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,617 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:43:37,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.30ms. Allocated memory is still 178.3MB. Free memory was 108.9MB in the beginning and 97.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.25ms. Allocated memory is still 178.3MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,619 INFO L158 Benchmark]: Boogie Preprocessor took 31.09ms. Allocated memory is still 178.3MB. Free memory was 96.3MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,620 INFO L158 Benchmark]: RCFGBuilder took 330.07ms. Allocated memory is still 178.3MB. Free memory was 94.3MB in the beginning and 83.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,622 INFO L158 Benchmark]: BuchiAutomizer took 2856.44ms. Allocated memory is still 178.3MB. Free memory was 83.3MB in the beginning and 79.5MB in the end (delta: 3.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-13 17:43:37,622 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 178.3MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:43:37,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.30ms. Allocated memory is still 178.3MB. Free memory was 108.9MB in the beginning and 97.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.25ms. Allocated memory is still 178.3MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.09ms. Allocated memory is still 178.3MB. Free memory was 96.3MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.07ms. Allocated memory is still 178.3MB. Free memory was 94.3MB in the beginning and 83.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2856.44ms. Allocated memory is still 178.3MB. Free memory was 83.3MB in the beginning and 79.5MB in the end (delta: 3.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 178.3MB. Free memory is still 78.5MB. 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: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~a!base,]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital148 mio100 ax100 hnf100 lsp90 ukn87 mio100 lsp31 div100 bol100 ite100 ukn100 eq213 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 17:43:37,658 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 [2024-10-13 17:43:37,857 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