./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/seq-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/seq-3.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 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:27:59,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:27:59,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:27:59,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:27:59,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:27:59,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:27:59,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:27:59,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:27:59,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:27:59,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:27:59,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:27:59,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:27:59,660 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:27:59,660 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:27:59,660 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:27:59,660 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:27:59,661 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:27:59,661 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:27:59,661 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:27:59,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:27:59,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:27:59,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:27:59,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:27:59,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:27:59,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:27:59,667 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:27:59,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:27:59,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:27:59,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:27:59,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:27:59,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:27:59,668 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:27:59,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 [2024-10-13 17:27:59,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:27:59,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:27:59,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:27:59,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:27:59,897 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:27:59,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/seq-3.i [2024-10-13 17:28:01,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:28:01,356 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:28:01,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/seq-3.i [2024-10-13 17:28:01,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e605f3b/7c26bba76fb24eaeb8e6a20de6fbdc7a/FLAG1be472873 [2024-10-13 17:28:01,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e605f3b/7c26bba76fb24eaeb8e6a20de6fbdc7a [2024-10-13 17:28:01,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:28:01,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:28:01,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:28:01,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:28:01,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:28:01,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:01,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204d9222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01, skipping insertion in model container [2024-10-13 17:28:01,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:01,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:28:01,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:28:01,945 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:28:01,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:28:01,972 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:28:01,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01 WrapperNode [2024-10-13 17:28:01,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:28:01,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:28:01,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:28:01,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:28:01,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:01,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,003 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-10-13 17:28:02,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:28:02,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:28:02,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:28:02,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:28:02,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,023 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]. [2024-10-13 17:28:02,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:28:02,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:28:02,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:28:02,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:28:02,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (1/1) ... [2024-10-13 17:28:02,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-13 17:28:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:28:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:28:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:28:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:28:02,161 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:28:02,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:28:02,330 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-13 17:28:02,331 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:28:02,348 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:28:02,348 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 17:28:02,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:02 BoogieIcfgContainer [2024-10-13 17:28:02,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:28:02,349 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:28:02,349 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:28:02,353 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:28:02,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:02,354 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:28:01" (1/3) ... [2024-10-13 17:28:02,355 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2920e24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:28:02, skipping insertion in model container [2024-10-13 17:28:02,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:02,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:01" (2/3) ... [2024-10-13 17:28:02,355 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2920e24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:28:02, skipping insertion in model container [2024-10-13 17:28:02,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:02,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:02" (3/3) ... [2024-10-13 17:28:02,360 INFO L332 chiAutomizerObserver]: Analyzing ICFG seq-3.i [2024-10-13 17:28:02,401 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:28:02,402 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:28:02,402 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:28:02,402 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:28:02,402 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:28:02,402 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:28:02,402 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:28:02,402 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:28:02,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:02,416 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2024-10-13 17:28:02,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:02,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:02,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-13 17:28:02,421 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 17:28:02,421 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:28:02,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:02,422 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2024-10-13 17:28:02,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:02,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:02,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-13 17:28:02,423 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 17:28:02,428 INFO L745 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L30true assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 6#L31true assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 8#L32-2true [2024-10-13 17:28:02,428 INFO L747 eck$LassoCheckResult]: Loop: 8#L32-2true assume !!(main_~i0~0#1 < main_~n0~0#1);main_#t~post3#1 := main_~i0~0#1;main_~i0~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8#L32-2true [2024-10-13 17:28:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-13 17:28:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:02,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962391435] [2024-10-13 17:28:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:02,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2024-10-13 17:28:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:02,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976098666] [2024-10-13 17:28:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:02,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2024-10-13 17:28:02,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:02,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675108469] [2024-10-13 17:28:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:02,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:02,648 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:02,648 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:02,648 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:02,649 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:02,649 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 17:28:02,649 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:02,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:02,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2024-10-13 17:28:02,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:02,650 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:02,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:02,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:02,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:02,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:02,721 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:02,722 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 17:28:02,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-13 17:28:02,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:02,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:02,754 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 17:28:02,754 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: [] [2024-10-13 17:28:02,766 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 [2024-10-13 17:28:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-13 17:28:02,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:02,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:02,782 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 17:28:02,782 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 17:28:02,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-13 17:28:02,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-13 17:28:02,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:02,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:02,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-13 17:28:02,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-13 17:28:02,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 17:28:02,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:02,860 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 17:28:02,860 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] [2024-10-13 17:28:02,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-13 17:28:02,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,873 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-13 17:28:02,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:02,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:02,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-13 17:28:02,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:02,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:02,902 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:02,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-13 17:28:02,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 17:28:02,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,012 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 17:28:03,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-13 17:28:03,017 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:03,018 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:03,018 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:03,018 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:03,018 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 17:28:03,018 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,018 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:03,018 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:03,018 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2024-10-13 17:28:03,018 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:03,018 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:03,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:03,063 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 17:28:03,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:03,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-13 17:28:03,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,090 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:28:03,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-13 17:28:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,103 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) [2024-10-13 17:28:03,105 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 [2024-10-13 17:28:03,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,121 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:28:03,132 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 [2024-10-13 17:28:03,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,134 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) [2024-10-13 17:28:03,135 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 [2024-10-13 17:28:03,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,150 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:28:03,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-13 17:28:03,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:03,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-13 17:28:03,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,179 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 17:28:03,183 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-13 17:28:03,183 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 17:28:03,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,188 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) [2024-10-13 17:28:03,192 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 [2024-10-13 17:28:03,195 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 17:28:03,195 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 17:28:03,195 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 17:28:03,196 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i0~0#1, ULTIMATE.start_main_~n0~0#1) = -1*ULTIMATE.start_main_~i0~0#1 + 1*ULTIMATE.start_main_~n0~0#1 Supporting invariants [] [2024-10-13 17:28:03,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-13 17:28:03,211 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 17:28:03,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:03,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 17:28:03,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:03,258 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 17:28:03,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:28:03,287 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 17:28:03,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:03,319 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 48 transitions. Complement of second has 4 states. [2024-10-13 17:28:03,323 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 [2024-10-13 17:28:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2024-10-13 17:28:03,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 4 letters. Loop has 1 letters. [2024-10-13 17:28:03,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:03,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 5 letters. Loop has 1 letters. [2024-10-13 17:28:03,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:03,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-13 17:28:03,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:03,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 48 transitions. [2024-10-13 17:28:03,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-13 17:28:03,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 15 states and 21 transitions. [2024-10-13 17:28:03,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-13 17:28:03,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-13 17:28:03,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2024-10-13 17:28:03,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:28:03,340 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-13 17:28:03,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2024-10-13 17:28:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-13 17:28:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2024-10-13 17:28:03,359 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-13 17:28:03,360 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-10-13 17:28:03,360 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:28:03,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2024-10-13 17:28:03,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-13 17:28:03,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:03,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:03,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-13 17:28:03,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 17:28:03,362 INFO L745 eck$LassoCheckResult]: Stem: 98#$Ultimate##0 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); 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 89#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 90#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 91#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 93#L32-3 main_~i1~0#1 := 0; 87#L37-2 [2024-10-13 17:28:03,362 INFO L747 eck$LassoCheckResult]: Loop: 87#L37-2 assume !!(main_~i1~0#1 < main_~n1~0#1);main_#t~post5#1 := main_~i1~0#1;main_~i1~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 87#L37-2 [2024-10-13 17:28:03,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash 889571406, now seen corresponding path program 1 times [2024-10-13 17:28:03,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:03,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126142893] [2024-10-13 17:28:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:03,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2024-10-13 17:28:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:03,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560712593] [2024-10-13 17:28:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:03,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:03,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1806909844, now seen corresponding path program 1 times [2024-10-13 17:28:03,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146527314] [2024-10-13 17:28:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:03,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:03,453 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:03,453 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:03,453 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:03,453 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:03,453 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 17:28:03,453 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,454 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:03,454 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:03,454 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2024-10-13 17:28:03,454 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:03,454 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:03,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,503 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:03,505 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 17:28:03,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,507 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) [2024-10-13 17:28:03,510 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 [2024-10-13 17:28:03,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:03,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,524 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 17:28:03,524 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 17:28:03,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-13 17:28:03,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,537 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) [2024-10-13 17:28:03,538 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 [2024-10-13 17:28:03,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:03,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,563 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 [2024-10-13 17:28:03,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,565 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) [2024-10-13 17:28:03,567 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 [2024-10-13 17:28:03,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 17:28:03,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,597 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 17:28:03,597 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] [2024-10-13 17:28:03,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-13 17:28:03,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,613 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) [2024-10-13 17:28:03,615 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 [2024-10-13 17:28:03,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:03,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-13 17:28:03,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,644 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) [2024-10-13 17:28:03,645 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 [2024-10-13 17:28:03,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 17:28:03,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:03,781 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 17:28:03,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-13 17:28:03,787 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:03,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:03,787 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:03,787 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:03,787 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 17:28:03,787 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,787 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:03,788 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:03,788 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2024-10-13 17:28:03,788 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:03,788 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:03,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:03,883 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:03,884 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 17:28:03,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,885 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) [2024-10-13 17:28:03,887 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 [2024-10-13 17:28:03,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,906 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:28:03,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-13 17:28:03,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,918 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) [2024-10-13 17:28:03,920 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 [2024-10-13 17:28:03,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,935 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 17:28:03,947 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 [2024-10-13 17:28:03,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,951 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:03,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-13 17:28:03,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:03,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:03,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:03,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:03,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:03,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:03,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:03,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:03,976 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 17:28:03,982 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 17:28:03,982 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 17:28:03,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:03,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:03,986 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:03,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-13 17:28:03,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 17:28:03,989 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 17:28:03,989 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 17:28:03,990 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0#1, ULTIMATE.start_main_~n1~0#1) = -1*ULTIMATE.start_main_~i1~0#1 + 1*ULTIMATE.start_main_~n1~0#1 Supporting invariants [] [2024-10-13 17:28:04,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-13 17:28:04,002 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 17:28:04,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:04,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 17:28:04,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:04,035 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 17:28:04,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:28:04,036 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 17:28:04,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-10-13 17:28:04,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 23 states and 33 transitions. Complement of second has 4 states. [2024-10-13 17:28:04,045 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 [2024-10-13 17:28:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-10-13 17:28:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2024-10-13 17:28:04,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 6 letters. Loop has 1 letters. [2024-10-13 17:28:04,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:04,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 1 letters. [2024-10-13 17:28:04,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:04,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 17:28:04,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:04,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. [2024-10-13 17:28:04,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 17:28:04,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 22 transitions. [2024-10-13 17:28:04,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-13 17:28:04,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-13 17:28:04,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2024-10-13 17:28:04,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:28:04,048 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-13 17:28:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2024-10-13 17:28:04,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-13 17:28:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:04,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2024-10-13 17:28:04,051 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-13 17:28:04,051 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2024-10-13 17:28:04,051 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:28:04,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2024-10-13 17:28:04,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 17:28:04,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:04,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:04,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:28:04,052 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 17:28:04,053 INFO L745 eck$LassoCheckResult]: Stem: 175#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;havoc main_#t~nondet1#1;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 166#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 167#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 168#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 170#L32-3 main_~i1~0#1 := 0; 163#L37-2 assume !(main_~i1~0#1 < main_~n1~0#1); 164#L37-3 main_~j1~0#1 := 0; 174#L42-2 [2024-10-13 17:28:04,053 INFO L747 eck$LassoCheckResult]: Loop: 174#L42-2 assume !!(main_~j1~0#1 < main_~n0~0#1 + main_~n1~0#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; 172#L18 assume !(0 == __VERIFIER_assert_~cond#1); 162#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~j1~0#1;main_~j1~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1; 174#L42-2 [2024-10-13 17:28:04,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:04,053 INFO L85 PathProgramCache]: Analyzing trace with hash 179630292, now seen corresponding path program 1 times [2024-10-13 17:28:04,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:04,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936657201] [2024-10-13 17:28:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:04,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:04,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:04,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:04,071 INFO L85 PathProgramCache]: Analyzing trace with hash 76913, now seen corresponding path program 1 times [2024-10-13 17:28:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:04,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726894708] [2024-10-13 17:28:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:04,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:04,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:04,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash -163174722, now seen corresponding path program 1 times [2024-10-13 17:28:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:04,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848575404] [2024-10-13 17:28:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:04,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:04,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-13 17:28:04,166 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 [2024-10-13 17:28:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:28:04,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:28:04,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848575404] [2024-10-13 17:28:04,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848575404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:28:04,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:28:04,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 17:28:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242185002] [2024-10-13 17:28:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:28:04,324 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:04,324 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:04,324 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:04,324 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:04,324 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 17:28:04,324 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:04,324 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:04,324 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:04,324 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2024-10-13 17:28:04,324 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:04,325 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:04,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:04,373 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:04,373 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 17:28:04,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:04,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:04,376 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:04,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-13 17:28:04,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 17:28:04,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:04,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-13 17:28:04,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:04,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:04,406 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:04,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-13 17:28:04,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 17:28:04,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 17:28:05,965 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 17:28:05,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-13 17:28:05,970 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 17:28:05,970 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 17:28:05,970 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 17:28:05,970 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 17:28:05,970 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 17:28:05,970 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:05,970 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 17:28:05,970 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 17:28:05,970 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2024-10-13 17:28:05,970 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 17:28:05,970 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 17:28:05,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:05,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:05,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:05,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:05,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:05,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 17:28:06,026 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 17:28:06,026 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 17:28:06,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:06,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:06,027 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:06,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-13 17:28:06,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 17:28:06,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 17:28:06,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 17:28:06,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 17:28:06,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 17:28:06,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 17:28:06,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 17:28:06,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 17:28:06,042 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 17:28:06,047 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 17:28:06,047 INFO L444 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 17:28:06,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:06,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:06,049 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:28:06,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-13 17:28:06,051 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 17:28:06,051 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 17:28:06,051 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 17:28:06,051 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j1~0#1, ULTIMATE.start_main_~n0~0#1, ULTIMATE.start_main_~n1~0#1) = -1*ULTIMATE.start_main_~j1~0#1 + 1*ULTIMATE.start_main_~n0~0#1 + 1*ULTIMATE.start_main_~n1~0#1 Supporting invariants [] [2024-10-13 17:28:06,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-13 17:28:06,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 17:28:06,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:06,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 17:28:06,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:06,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 17:28:06,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 17:28:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:28:06,192 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 [2024-10-13 17:28:06,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:06,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 35 transitions. Complement of second has 5 states. [2024-10-13 17:28:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 17:28:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2024-10-13 17:28:06,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-13 17:28:06,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:06,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 3 letters. [2024-10-13 17:28:06,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:06,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 6 letters. [2024-10-13 17:28:06,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 17:28:06,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions. [2024-10-13 17:28:06,217 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:28:06,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2024-10-13 17:28:06,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 17:28:06,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 17:28:06,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 17:28:06,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:28:06,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:28:06,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:28:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:28:06,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 17:28:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 17:28:06,221 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:28:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:28:06,223 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-13 17:28:06,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-13 17:28:06,223 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:28:06,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 17:28:06,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 17:28:06,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 17:28:06,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 17:28:06,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:28:06,224 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:28:06,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:28:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 17:28:06,225 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:28:06,225 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:28:06,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 17:28:06,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:28:06,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 17:28:06,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:28:06 BoogieIcfgContainer [2024-10-13 17:28:06,232 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:28:06,232 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:28:06,232 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:28:06,232 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:28:06,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:02" (3/4) ... [2024-10-13 17:28:06,234 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 17:28:06,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:28:06,235 INFO L158 Benchmark]: Toolchain (without parser) took 4459.81ms. Allocated memory is still 207.6MB. Free memory was 142.8MB in the beginning and 139.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-10-13 17:28:06,236 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:06,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.98ms. Allocated memory is still 207.6MB. Free memory was 142.6MB in the beginning and 130.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 17:28:06,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.29ms. Allocated memory is still 207.6MB. Free memory was 130.7MB in the beginning and 129.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:28:06,236 INFO L158 Benchmark]: Boogie Preprocessor took 26.00ms. Allocated memory is still 207.6MB. Free memory was 129.1MB in the beginning and 127.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:06,236 INFO L158 Benchmark]: RCFGBuilder took 317.90ms. Allocated memory is still 207.6MB. Free memory was 127.4MB in the beginning and 178.2MB in the end (delta: -50.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-10-13 17:28:06,237 INFO L158 Benchmark]: BuchiAutomizer took 3882.26ms. Allocated memory is still 207.6MB. Free memory was 177.4MB in the beginning and 139.3MB in the end (delta: 38.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-13 17:28:06,237 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 207.6MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:06,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.98ms. Allocated memory is still 207.6MB. Free memory was 142.6MB in the beginning and 130.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.29ms. Allocated memory is still 207.6MB. Free memory was 130.7MB in the beginning and 129.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.00ms. Allocated memory is still 207.6MB. Free memory was 129.1MB in the beginning and 127.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.90ms. Allocated memory is still 207.6MB. Free memory was 127.4MB in the beginning and 178.2MB in the end (delta: -50.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3882.26ms. Allocated memory is still 207.6MB. Free memory was 177.4MB in the beginning and 139.3MB in the end (delta: 38.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 207.6MB. Free memory is still 139.3MB. 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (n0 + ((long long) -1 * i0)) and consists of 3 locations. One deterministic module has affine ranking function (n1 + ((long long) -1 * i1)) and consists of 3 locations. One deterministic module has affine ranking function ((((long long) -1 * j1) + n0) + n1) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 28 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 17:28:06,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-13 17:28:06,458 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