./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/up.i -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 ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:26:47,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:26:47,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:26:47,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:26:47,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:26:47,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:26:47,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:26:47,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:26:47,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:26:47,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:26:47,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:26:47,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:26:47,525 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:26:47,526 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:26:47,526 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:26:47,528 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:26:47,529 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:26:47,529 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:26:47,531 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:26:47,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:26:47,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:26:47,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:26:47,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:26:47,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:26:47,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:26:47,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:26:47,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:26:47,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:26:47,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:26:47,538 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:26:47,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:26:47,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:26:47,540 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:26:47,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:26:47,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:26:47,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:26:47,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:26:47,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:26:47,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:26:47,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f [2024-11-12 21:26:47,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:26:47,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:26:47,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:26:47,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:26:47,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:26:47,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/up.i [2024-11-12 21:26:49,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:26:49,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:26:49,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i [2024-11-12 21:26:49,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf913034/76dcf980154d4b0b96eb004641c4f299/FLAGce60b0f26 [2024-11-12 21:26:49,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf913034/76dcf980154d4b0b96eb004641c4f299 [2024-11-12 21:26:49,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:26:49,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:26:49,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:26:49,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:26:49,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:26:49,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:26:49" (1/1) ... [2024-11-12 21:26:49,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9c700f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:49, skipping insertion in model container [2024-11-12 21:26:49,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:26:49" (1/1) ... [2024-11-12 21:26:49,900 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:26:50,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:26:50,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:26:50,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:26:50,183 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:26:50,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50 WrapperNode [2024-11-12 21:26:50,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:26:50,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:26:50,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:26:50,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:26:50,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,219 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-12 21:26:50,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:26:50,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:26:50,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:26:50,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:26:50,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,242 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 21:26:50,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:26:50,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:26:50,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:26:50,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:26:50,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (1/1) ... [2024-11-12 21:26:50,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:50,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:50,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:50,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 21:26:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:26:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:26:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:26:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:26:50,411 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:26:50,413 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:26:50,527 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-12 21:26:50,527 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:26:50,545 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:26:50,547 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 21:26:50,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:50 BoogieIcfgContainer [2024-11-12 21:26:50,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:26:50,549 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:26:50,549 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:26:50,553 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:26:50,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:50,555 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:26:49" (1/3) ... [2024-11-12 21:26:50,556 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11ab7853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:26:50, skipping insertion in model container [2024-11-12 21:26:50,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:50,556 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:26:50" (2/3) ... [2024-11-12 21:26:50,558 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11ab7853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:26:50, skipping insertion in model container [2024-11-12 21:26:50,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:26:50,558 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:50" (3/3) ... [2024-11-12 21:26:50,559 INFO L332 chiAutomizerObserver]: Analyzing ICFG up.i [2024-11-12 21:26:50,615 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:26:50,616 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:26:50,616 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:26:50,616 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:26:50,616 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:26:50,617 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:26:50,617 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:26:50,617 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:26:50,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:50,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-12 21:26:50,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:50,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:50,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:26:50,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 21:26:50,641 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:26:50,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:50,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-12 21:26:50,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:50,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:50,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:26:50,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 21:26:50,652 INFO L747 eck$LassoCheckResult]: Stem: "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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-12 21:26:50,652 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~i~0#1 < main_~n~0#1);main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;" [2024-11-12 21:26:50,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:50,662 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 21:26:50,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:50,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330042774] [2024-11-12 21:26:50,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:50,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,766 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:50,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2024-11-12 21:26:50,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:50,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668596864] [2024-11-12 21:26:50,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:50,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-12 21:26:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378881155] [2024-11-12 21:26:50,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:50,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:50,932 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:50,932 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:50,933 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:50,933 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:50,933 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:50,934 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:50,934 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:50,934 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:50,934 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2024-11-12 21:26:50,934 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:50,934 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:50,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:50,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:50,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:50,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:51,039 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:51,039 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:51,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-12 21:26:51,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:51,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:51,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-12 21:26:51,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-12 21:26:51,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:51,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:51,108 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:51,108 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=4}, {ULTIMATE.start_main_~k~0#1=-1}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-11-12 21:26:51,119 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 [2024-11-12 21:26:51,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-12 21:26:51,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:51,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:51,138 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:51,139 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:51,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-12 21:26:51,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:51,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:51,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-12 21:26:51,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:51,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:51,315 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:51,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,320 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:51,321 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:51,321 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:51,321 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:51,321 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:51,321 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,321 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:51,321 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:51,321 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2024-11-12 21:26:51,321 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:51,321 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:51,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:51,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:51,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:51,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:51,382 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:51,389 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:51,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-12 21:26:51,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:51,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:51,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:51,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:51,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:51,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:51,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:51,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:51,412 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:51,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,424 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-12 21:26:51,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:51,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:51,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:51,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:51,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:51,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:51,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:51,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:51,439 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:51,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-12 21:26:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,452 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-12 21:26:51,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:51,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:51,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:51,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:51,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:51,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:51,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:51,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:51,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:51,481 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-12 21:26:51,481 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 21:26:51,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:51,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,507 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-12 21:26:51,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:51,509 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:51,509 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:51,510 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-12 21:26:51,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,524 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:51,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:51,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:51,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:51,583 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:51,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:51,647 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-12 21:26:51,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:51,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:51,687 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 34 transitions. Complement of second has 4 states. [2024-11-12 21:26:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2024-11-12 21:26:51,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2024-11-12 21:26:51,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:51,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2024-11-12 21:26:51,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:51,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-12 21:26:51,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:51,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 34 transitions. [2024-11-12 21:26:51,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-12 21:26:51,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 11 states and 15 transitions. [2024-11-12 21:26:51,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-12 21:26:51,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-12 21:26:51,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2024-11-12 21:26:51,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:51,707 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-12 21:26:51,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2024-11-12 21:26:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-12 21:26:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2024-11-12 21:26:51,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-12 21:26:51,729 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-12 21:26:51,730 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:26:51,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2024-11-12 21:26:51,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-12 21:26:51,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:26:51,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:26:51,731 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 21:26:51,731 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 21:26:51,731 INFO L747 eck$LassoCheckResult]: Stem: "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(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~i~0#1, main_~k~0#1, main_~j~0#1;havoc main_~n~0#1;main_~i~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(main_~i~0#1 < main_~n~0#1);" "main_~j~0#1 := 0;" [2024-11-12 21:26:51,731 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~j~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" [2024-11-12 21:26:51,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2024-11-12 21:26:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:51,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178558873] [2024-11-12 21:26:51,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:51,739 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:51,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:51,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 54074, now seen corresponding path program 1 times [2024-11-12 21:26:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:51,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065394418] [2024-11-12 21:26:51,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:51,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:51,753 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:26:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:26:51,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:26:51,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1808851474, now seen corresponding path program 1 times [2024-11-12 21:26:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:26:51,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802578603] [2024-11-12 21:26:51,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:51,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:26:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:26:51,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802578603] [2024-11-12 21:26:51,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802578603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:26:51,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448001158] [2024-11-12 21:26:51,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:26:51,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:26:51,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:51,902 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:26:51,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 21:26:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:51,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:51,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:51,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:26:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448001158] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:26:52,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:26:52,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-12 21:26:52,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15769376] [2024-11-12 21:26:52,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:26:52,081 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:52,082 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:52,082 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:52,082 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:52,082 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:26:52,082 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,082 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:52,082 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:52,082 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2024-11-12 21:26:52,083 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:52,083 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:52,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,156 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:52,157 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:26:52,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,160 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-12 21:26:52,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:52,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:52,180 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:52,180 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:52,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:52,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,194 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-12 21:26:52,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:52,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:52,207 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:26:52,207 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:26:52,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,220 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-12 21:26:52,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:26:52,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:52,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-12 21:26:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,254 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-12 21:26:52,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:26:52,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:26:52,368 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:26:52,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:52,373 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:26:52,373 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:26:52,373 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:26:52,373 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:26:52,373 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:26:52,373 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,373 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:26:52,373 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:26:52,373 INFO L132 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2024-11-12 21:26:52,373 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:26:52,373 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:26:52,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:26:52,451 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:26:52,451 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:26:52,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,455 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-12 21:26:52,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:52,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:52,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:52,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:52,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:52,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:52,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:52,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:52,470 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:52,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:52,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,482 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-12 21:26:52,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:52,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:52,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:52,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:52,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:52,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:52,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:52,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:52,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:26:52,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-12 21:26:52,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,511 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-12 21:26:52,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 21:26:52,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:26:52,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:26:52,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:26:52,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:26:52,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:26:52,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:26:52,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:26:52,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:26:52,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:26:52,530 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:26:52,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:26:52,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:26:52,532 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:26:52,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-12 21:26:52,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:26:52,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:26:52,535 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:26:52,535 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-12 21:26:52,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-12 21:26:52,550 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:26:52,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:26:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:52,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:26:52,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:26:52,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:26:52,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:26:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:26:52,626 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 21:26:52,627 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:52,650 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 28 transitions. Complement of second has 5 states. [2024-11-12 21:26:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-12 21:26:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-12 21:26:52,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-12 21:26:52,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:52,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-12 21:26:52,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:52,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-12 21:26:52,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:26:52,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2024-11-12 21:26:52,657 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:52,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-11-12 21:26:52,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 21:26:52,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 21:26:52,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 21:26:52,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:52,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:52,658 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:52,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:26:52,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 21:26:52,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 21:26:52,662 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:26:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:26:52,664 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-12 21:26:52,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-12 21:26:52,665 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:52,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 21:26:52,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 21:26:52,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 21:26:52,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 21:26:52,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:26:52,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:52,665 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 21:26:52,666 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 21:26:52,667 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:26:52,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 21:26:52,667 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 21:26:52,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 21:26:52,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:26:52 BoogieIcfgContainer [2024-11-12 21:26:52,675 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:26:52,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:26:52,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:26:52,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:26:52,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:26:50" (3/4) ... [2024-11-12 21:26:52,679 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 21:26:52,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:26:52,681 INFO L158 Benchmark]: Toolchain (without parser) took 2811.57ms. Allocated memory is still 161.5MB. Free memory was 94.6MB in the beginning and 78.3MB in the end (delta: 16.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-11-12 21:26:52,683 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:52,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.67ms. Allocated memory is still 161.5MB. Free memory was 94.4MB in the beginning and 130.0MB in the end (delta: -35.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:26:52,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 161.5MB. Free memory was 130.0MB in the beginning and 128.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:26:52,684 INFO L158 Benchmark]: Boogie Preprocessor took 41.07ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 126.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:52,685 INFO L158 Benchmark]: RCFGBuilder took 285.65ms. Allocated memory is still 161.5MB. Free memory was 126.7MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 21:26:52,687 INFO L158 Benchmark]: BuchiAutomizer took 2126.77ms. Allocated memory is still 161.5MB. Free memory was 116.5MB in the beginning and 78.3MB in the end (delta: 38.2MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-12 21:26:52,687 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 161.5MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:26:52,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.67ms. Allocated memory is still 161.5MB. Free memory was 94.4MB in the beginning and 130.0MB in the end (delta: -35.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 161.5MB. Free memory was 130.0MB in the beginning and 128.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.07ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 126.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.65ms. Allocated memory is still 161.5MB. Free memory was 126.7MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2126.77ms. Allocated memory is still 161.5MB. Free memory was 116.5MB in the beginning and 78.3MB in the end (delta: 38.2MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 161.5MB. Free memory is still 78.3MB. 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 (((long long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-12 21:26:52,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-12 21:26:52,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 21:26:53,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE