./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/apache-escape-absolute.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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 20:21:20,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 20:21:20,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-17 20:21:20,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 20:21:20,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 20:21:20,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 20:21:20,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 20:21:20,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 20:21:20,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 20:21:20,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 20:21:20,747 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 20:21:20,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 20:21:20,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 20:21:20,747 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 20:21:20,748 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 20:21:20,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 20:21:20,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 20:21:20,749 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 20:21:20,750 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 20:21:20,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 20:21:20,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 20:21:20,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 20:21:20,750 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 20:21:20,750 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2025-03-17 20:21:20,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 20:21:20,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 20:21:20,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 20:21:20,970 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 20:21:20,970 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 20:21:20,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2025-03-17 20:21:22,102 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee571bf47/bf8b8472b9704fa787d61001b9aa1566/FLAGa0f49d9c6 [2025-03-17 20:21:22,309 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 20:21:22,310 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2025-03-17 20:21:22,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee571bf47/bf8b8472b9704fa787d61001b9aa1566/FLAGa0f49d9c6 [2025-03-17 20:21:22,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee571bf47/bf8b8472b9704fa787d61001b9aa1566 [2025-03-17 20:21:22,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 20:21:22,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 20:21:22,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 20:21:22,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 20:21:22,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 20:21:22,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417b1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22, skipping insertion in model container [2025-03-17 20:21:22,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 20:21:22,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:21:22,506 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 20:21:22,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 20:21:22,538 INFO L204 MainTranslator]: Completed translation [2025-03-17 20:21:22,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22 WrapperNode [2025-03-17 20:21:22,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 20:21:22,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 20:21:22,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 20:21:22,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 20:21:22,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,564 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 21, calls inlined = 38, statements flattened = 243 [2025-03-17 20:21:22,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 20:21:22,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 20:21:22,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 20:21:22,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 20:21:22,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,581 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]. [2025-03-17 20:21:22,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,585 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 20:21:22,588 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 20:21:22,588 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 20:21:22,588 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 20:21:22,589 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (1/1) ... [2025-03-17 20:21:22,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:22,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:22,611 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) [2025-03-17 20:21:22,613 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 [2025-03-17 20:21:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 20:21:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 20:21:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 20:21:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 20:21:22,671 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 20:21:22,672 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 20:21:22,896 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2025-03-17 20:21:22,896 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 20:21:22,904 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 20:21:22,904 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 20:21:22,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:21:22 BoogieIcfgContainer [2025-03-17 20:21:22,905 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 20:21:22,906 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 20:21:22,906 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 20:21:22,909 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 20:21:22,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:21:22,910 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 08:21:22" (1/3) ... [2025-03-17 20:21:22,911 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dbc9870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:21:22, skipping insertion in model container [2025-03-17 20:21:22,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:21:22,911 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:21:22" (2/3) ... [2025-03-17 20:21:22,911 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dbc9870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:21:22, skipping insertion in model container [2025-03-17 20:21:22,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 20:21:22,911 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:21:22" (3/3) ... [2025-03-17 20:21:22,911 INFO L363 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2025-03-17 20:21:22,944 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 20:21:22,944 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 20:21:22,944 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 20:21:22,944 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 20:21:22,944 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 20:21:22,945 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 20:21:22,945 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 20:21:22,945 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 20:21:22,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 94 states, 93 states have (on average 1.5483870967741935) internal successors, (144), 93 states have internal predecessors, (144), 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) [2025-03-17 20:21:22,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2025-03-17 20:21:22,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:21:22,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:21:22,964 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 20:21:22,965 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-03-17 20:21:22,965 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 20:21:22,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 94 states, 93 states have (on average 1.5483870967741935) internal successors, (144), 93 states have internal predecessors, (144), 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) [2025-03-17 20:21:22,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2025-03-17 20:21:22,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 20:21:22,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 20:21:22,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 20:21:22,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-03-17 20:21:22,974 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~pre6#1, main_#t~pre7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~pre10#1, main_#t~pre11#1, main_~scheme~0#1, main_~urilen~0#1, main_~tokenlen~0#1, main_~cp~0#1, main_~c~0#1;havoc main_~scheme~0#1;havoc main_~urilen~0#1;havoc main_~tokenlen~0#1;havoc main_~cp~0#1;havoc main_~c~0#1;havoc main_#t~nondet1#1;main_~urilen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~tokenlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~scheme~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume !!(main_~urilen~0#1 <= 1000000 && main_~urilen~0#1 >= -1000000);" "assume !!(main_~tokenlen~0#1 <= 1000000 && main_~tokenlen~0#1 >= -1000000);" "assume !!(main_~scheme~0#1 <= 1000000 && main_~scheme~0#1 >= -1000000);" "assume main_~urilen~0#1 > 0;" "assume main_~tokenlen~0#1 > 0;" "assume main_~scheme~0#1 >= 0;" "assume !(0 == main_~scheme~0#1 || main_~urilen~0#1 - 1 < main_~scheme~0#1);main_~cp~0#1 := main_~scheme~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 - 1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~nondet4#1;" "assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" [2025-03-17 20:21:22,975 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~cp~0#1 != main_~urilen~0#1 - 1;havoc main_#t~nondet5#1;" "assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~pre6#1 := 1 + main_~cp~0#1;main_~cp~0#1 := 1 + main_~cp~0#1;havoc main_#t~pre6#1;" [2025-03-17 20:21:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:21:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1152368316, now seen corresponding path program 1 times [2025-03-17 20:21:22,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:21:22,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239812090] [2025-03-17 20:21:22,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:21:22,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:21:23,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 20:21:23,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 20:21:23,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,060 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:21:23,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 20:21:23,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 20:21:23,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:21:23,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:21:23,099 INFO L85 PathProgramCache]: Analyzing trace with hash -154365898, now seen corresponding path program 1 times [2025-03-17 20:21:23,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:21:23,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939410053] [2025-03-17 20:21:23,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:21:23,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:21:23,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:21:23,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:21:23,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,115 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:21:23,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:21:23,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:21:23,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:21:23,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:21:23,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1130992441, now seen corresponding path program 1 times [2025-03-17 20:21:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 20:21:23,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732950028] [2025-03-17 20:21:23,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 20:21:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 20:21:23,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 20:21:23,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 20:21:23,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,160 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 20:21:23,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 20:21:23,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 20:21:23,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 20:21:23,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 20:21:23,269 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:21:23,269 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:21:23,269 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:21:23,269 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:21:23,270 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 20:21:23,270 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,270 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:21:23,270 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:21:23,270 INFO L132 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2025-03-17 20:21:23,270 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:21:23,270 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:21:23,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,354 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:21:23,354 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 20:21:23,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,359 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) [2025-03-17 20:21:23,360 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 [2025-03-17 20:21:23,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:21:23,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:21:23,375 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 20:21:23,375 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 20:21:23,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-03-17 20:21:23,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,385 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) [2025-03-17 20:21:23,386 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 [2025-03-17 20:21:23,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 20:21:23,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:21:23,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-17 20:21:23,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,408 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) [2025-03-17 20:21:23,409 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 [2025-03-17 20:21:23,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 20:21:23,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 20:21:23,444 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 20:21:23,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-17 20:21:23,450 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 20:21:23,450 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 20:21:23,450 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 20:21:23,450 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 20:21:23,450 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 20:21:23,450 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,450 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 20:21:23,450 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 20:21:23,450 INFO L132 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2025-03-17 20:21:23,450 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 20:21:23,450 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 20:21:23,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 20:21:23,509 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 20:21:23,511 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 20:21:23,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,514 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) [2025-03-17 20:21:23,515 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 [2025-03-17 20:21:23,517 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 [2025-03-17 20:21:23,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:21:23,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:21:23,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:21:23,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:21:23,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:21:23,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:21:23,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:21:23,533 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 20:21:23,538 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 [2025-03-17 20:21:23,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,540 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) [2025-03-17 20:21:23,542 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 [2025-03-17 20:21:23,543 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 [2025-03-17 20:21:23,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 20:21:23,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 20:21:23,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 20:21:23,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 20:21:23,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 20:21:23,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 20:21:23,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 20:21:23,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 20:21:23,559 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 20:21:23,561 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 20:21:23,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 20:21:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 20:21:23,564 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) [2025-03-17 20:21:23,565 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 [2025-03-17 20:21:23,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 20:21:23,566 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 20:21:23,566 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 20:21:23,567 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~urilen~0#1, ULTIMATE.start_main_~cp~0#1) = 1*ULTIMATE.start_main_~urilen~0#1 - 1*ULTIMATE.start_main_~cp~0#1 Supporting invariants [] [2025-03-17 20:21:23,572 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 [2025-03-17 20:21:23,575 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 20:21:23,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 20:21:23,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 20:21:23,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 20:21:23,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:21:23,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 20:21:23,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:21:23,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 20:21:23,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 20:21:23,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 20:21:23,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 20:21:23,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 20:21:23,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 20:21:23,681 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 [2025-03-17 20:21:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 20:21:23,750 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-17 20:21:23,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 94 states, 93 states have (on average 1.5483870967741935) internal successors, (144), 93 states have internal predecessors, (144), 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 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:21:23,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 94 states, 93 states have (on average 1.5483870967741935) internal successors, (144), 93 states have internal predecessors, (144), 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 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 225 states and 322 transitions. Complement of second has 12 states. [2025-03-17 20:21:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-17 20:21:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 20:21:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2025-03-17 20:21:23,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 251 transitions. Stem has 17 letters. Loop has 6 letters. [2025-03-17 20:21:23,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:21:23,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 251 transitions. Stem has 23 letters. Loop has 6 letters. [2025-03-17 20:21:23,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:21:23,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 251 transitions. Stem has 17 letters. Loop has 12 letters. [2025-03-17 20:21:23,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 20:21:23,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 322 transitions. [2025-03-17 20:21:23,953 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:21:23,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 0 states and 0 transitions. [2025-03-17 20:21:23,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 20:21:23,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 20:21:23,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 20:21:23,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 20:21:23,955 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:21:23,958 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:21:23,958 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 20:21:23,958 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 20:21:23,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 20:21:23,958 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 20:21:23,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 20:21:23,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 08:21:23 BoogieIcfgContainer [2025-03-17 20:21:23,965 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 20:21:23,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 20:21:23,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 20:21:23,966 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 20:21:23,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:21:22" (3/4) ... [2025-03-17 20:21:23,968 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 20:21:23,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 20:21:23,969 INFO L158 Benchmark]: Toolchain (without parser) took 1609.83ms. Allocated memory is still 167.8MB. Free memory was 124.7MB in the beginning and 98.1MB in the end (delta: 26.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2025-03-17 20:21:23,969 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:21:23,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.19ms. Allocated memory is still 167.8MB. Free memory was 124.7MB in the beginning and 113.2MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 20:21:23,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.75ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 20:21:23,969 INFO L158 Benchmark]: Boogie Preprocessor took 22.85ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:21:23,970 INFO L158 Benchmark]: IcfgBuilder took 316.87ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 92.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 20:21:23,970 INFO L158 Benchmark]: BuchiAutomizer took 1059.96ms. Allocated memory is still 167.8MB. Free memory was 91.3MB in the beginning and 98.2MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:21:23,970 INFO L158 Benchmark]: Witness Printer took 2.34ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 20:21:23,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.19ms. Allocated memory is still 167.8MB. Free memory was 124.7MB in the beginning and 113.2MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.75ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.85ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 316.87ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 92.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1059.96ms. Allocated memory is still 167.8MB. Free memory was 91.3MB in the beginning and 98.2MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.34ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 33.1kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * cp) + urilen) and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 60 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf96 smp62 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 20:21:23,986 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