./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-15/cstrncpy_reverse_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 3c4d1f74b81dbb287c4425592070f3cc0de08845db85b6da85a8a6e68f14746e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:59:11,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:59:11,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:59:11,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:59:11,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:59:11,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:59:11,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:59:11,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:59:11,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:59:11,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:59:11,090 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:59:11,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:59:11,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:59:11,090 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:59:11,090 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:59:11,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:59:11,091 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:59:11,092 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:59:11,093 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:59:11,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:59:11,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:59:11,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:59:11,093 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:59:11,093 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c4d1f74b81dbb287c4425592070f3cc0de08845db85b6da85a8a6e68f14746e [2025-03-17 19:59:11,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:59:11,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:59:11,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:59:11,295 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:59:11,298 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:59:11,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2025-03-17 19:59:12,475 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c45de20e1/735f4d3b1b97469db84367ccde5b84a7/FLAG25d8e93e5 [2025-03-17 19:59:12,765 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:59:12,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2025-03-17 19:59:12,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c45de20e1/735f4d3b1b97469db84367ccde5b84a7/FLAG25d8e93e5 [2025-03-17 19:59:13,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c45de20e1/735f4d3b1b97469db84367ccde5b84a7 [2025-03-17 19:59:13,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:59:13,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:59:13,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:59:13,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:59:13,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:59:13,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f1f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13, skipping insertion in model container [2025-03-17 19:59:13,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:59:13,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:59:13,286 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:59:13,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:59:13,338 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:59:13,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13 WrapperNode [2025-03-17 19:59:13,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:59:13,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:59:13,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:59:13,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:59:13,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,359 INFO L138 Inliner]: procedures = 152, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2025-03-17 19:59:13,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:59:13,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:59:13,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:59:13,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:59:13,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,374 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 3 writes are split as follows [1, 2]. [2025-03-17 19:59:13,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,378 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:59:13,381 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:59:13,381 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:59:13,381 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:59:13,382 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (1/1) ... [2025-03-17 19:59:13,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:13,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:13,403 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 19:59:13,405 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 19:59:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:59:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:59:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:59:13,482 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:59:13,484 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:59:13,619 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L391: call ULTIMATE.dealloc(main_#t~malloc213#1.base, main_#t~malloc213#1.offset);havoc main_#t~malloc213#1.base, main_#t~malloc213#1.offset;call ULTIMATE.dealloc(main_#t~malloc214#1.base, main_#t~malloc214#1.offset);havoc main_#t~malloc214#1.base, main_#t~malloc214#1.offset; [2025-03-17 19:59:13,635 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-03-17 19:59:13,635 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:59:13,643 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:59:13,643 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:59:13,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:59:13 BoogieIcfgContainer [2025-03-17 19:59:13,644 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:59:13,644 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:59:13,645 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:59:13,649 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:59:13,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:59:13,650 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:59:13" (1/3) ... [2025-03-17 19:59:13,651 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c896502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:59:13, skipping insertion in model container [2025-03-17 19:59:13,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:59:13,652 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:59:13" (2/3) ... [2025-03-17 19:59:13,653 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c896502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:59:13, skipping insertion in model container [2025-03-17 19:59:13,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:59:13,653 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:59:13" (3/3) ... [2025-03-17 19:59:13,654 INFO L363 chiAutomizerObserver]: Analyzing ICFG cstrncpy_reverse_alloca.i [2025-03-17 19:59:13,690 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:59:13,691 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:59:13,691 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:59:13,691 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:59:13,691 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:59:13,691 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:59:13,692 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:59:13,692 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:59:13,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 19:59:13,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-03-17 19:59:13,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:59:13,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:59:13,709 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-17 19:59:13,709 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:59:13,710 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:59:13,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 19:59:13,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-03-17 19:59:13,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:59:13,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:59:13,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-17 19:59:13,710 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:59:13,714 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet211#1, main_#t~nondet212#1, main_#t~malloc213#1.base, main_#t~malloc213#1.offset, main_#t~malloc214#1.base, main_#t~malloc214#1.offset, main_#t~ret215#1.base, main_#t~ret215#1.offset, main_~length~0#1, main_~n~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc main_#t~nondet211#1;main_~length~0#1 := main_#t~nondet211#1;havoc main_#t~nondet211#1;havoc main_#t~nondet212#1;main_~n~0#1 := main_#t~nondet212#1;havoc main_#t~nondet212#1;" "assume !(main_~length~0#1 < 1);" "assume main_~n~0#1 < 1;main_~n~0#1 := 1;" "call main_#t~malloc213#1.base, main_#t~malloc213#1.offset := #Ultimate.allocOnStack(main_~n~0#1 % 18446744073709551616);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc213#1.base, main_#t~malloc213#1.offset;call main_#t~malloc214#1.base, main_#t~malloc214#1.offset := #Ultimate.allocOnStack(main_~length~0#1 % 18446744073709551616);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc214#1.base, main_#t~malloc214#1.offset;call write~int#0(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, 1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length~0#1 - 1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset + (main_~n~0#1 - 1);assume { :begin_inline_cstrncpy } true;cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset, cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset, cstrncpy_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, main_~n~0#1;havoc cstrncpy_#res#1.base, cstrncpy_#res#1.offset;havoc cstrncpy_#t~post205#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, cstrncpy_#t~mem208#1, cstrncpy_#t~post209#1, cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset, cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset, cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset, cstrncpy_~n#1, cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset, cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset, cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset, cstrncpy_~n2~0#1;cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset := cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset;cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset := cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset;cstrncpy_~n#1 := cstrncpy_#in~n#1;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset;havoc cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset;havoc cstrncpy_~n2~0#1;" [2025-03-17 19:59:13,714 INFO L754 eck$LassoCheckResult]: Loop: "assume cstrncpy_~n#1 > 0;cstrncpy_#t~post205#1 := cstrncpy_~n#1;cstrncpy_~n#1 := cstrncpy_#t~post205#1 - 1;havoc cstrncpy_#t~post205#1;cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset := cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset - 1;cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset := cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset - 1;call cstrncpy_#t~mem208#1 := read~int#0(cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, 1);call write~int#1(cstrncpy_#t~mem208#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, 1);" "assume !(0 == cstrncpy_#t~mem208#1);havoc cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset;havoc cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset;havoc cstrncpy_#t~mem208#1;" [2025-03-17 19:59:13,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1507327, now seen corresponding path program 1 times [2025-03-17 19:59:13,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:13,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732687927] [2025-03-17 19:59:13,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:13,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:13,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:59:13,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:59:13,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,803 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:13,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:59:13,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:59:13,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:13,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1344, now seen corresponding path program 1 times [2025-03-17 19:59:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035675145] [2025-03-17 19:59:13,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:13,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:13,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:13,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:13,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,850 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:13,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:13,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:13,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:13,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1448541630, now seen corresponding path program 1 times [2025-03-17 19:59:13,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:13,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141310985] [2025-03-17 19:59:13,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:13,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:13,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:13,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,901 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:13,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:13,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:13,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:13,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:13,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:14,561 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:59:14,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:59:14,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:59:14,563 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:59:14,564 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:59:14,564 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:14,564 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:59:14,564 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:59:14,564 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration1_Lasso [2025-03-17 19:59:14,564 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:59:14,564 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:59:14,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:14,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:15,252 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:59:15,256 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:59:15,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,260 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 19:59:15,261 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 19:59:15,262 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 19:59:15,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:15,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:15,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:15,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:15,283 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:15,290 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 [2025-03-17 19:59:15,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,294 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 19:59:15,296 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 19:59:15,296 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 19:59:15,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:15,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:15,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:15,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:15,309 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:15,315 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 19:59:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,317 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 19:59:15,319 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 19:59:15,320 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 19:59:15,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:15,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,331 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-17 19:59:15,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,331 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-17 19:59:15,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:15,333 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:15,339 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 19:59:15,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,341 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 19:59:15,342 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 19:59:15,344 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 19:59:15,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:15,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:15,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:15,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:15,357 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:15,362 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 19:59:15,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,364 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 19:59:15,365 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 19:59:15,367 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 19:59:15,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:15,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:59:15,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:59:15,382 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:15,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-17 19:59:15,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,389 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 19:59:15,390 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 19:59:15,391 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 19:59:15,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:15,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:15,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:15,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:15,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:59:15,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:59:15,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:59:15,430 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2025-03-17 19:59:15,432 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2025-03-17 19:59:15,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:15,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:15,436 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) [2025-03-17 19:59:15,437 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 [2025-03-17 19:59:15,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:59:15,448 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-03-17 19:59:15,448 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:59:15,449 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~dst~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc213#1.base)_1) = 2*ULTIMATE.start_cstrncpy_~dst~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc213#1.base)_1 Supporting invariants [] [2025-03-17 19:59:15,455 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 19:59:15,481 INFO L156 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2025-03-17 19:59:15,486 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2025-03-17 19:59:15,487 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2025-03-17 19:59:15,488 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~dst~0!offset [2025-03-17 19:59:15,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:15,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:59:15,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:59:15,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:15,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 19:59:15,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:15,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:15,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:15,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:15,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 19:59:15,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:15,598 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 [2025-03-17 19:59:15,608 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 19:59:15,631 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 [2025-03-17 19:59:15,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:59:15,671 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 18 states and 26 transitions. Complement of second has 5 states. [2025-03-17 19:59:15,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-17 19:59:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:59:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2025-03-17 19:59:15,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2025-03-17 19:59:15,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:15,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2025-03-17 19:59:15,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:15,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2025-03-17 19:59:15,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:15,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 26 transitions. [2025-03-17 19:59:15,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:59:15,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 10 states and 13 transitions. [2025-03-17 19:59:15,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2025-03-17 19:59:15,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2025-03-17 19:59:15,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2025-03-17 19:59:15,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:59:15,685 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2025-03-17 19:59:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2025-03-17 19:59:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-03-17 19:59:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 19:59:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2025-03-17 19:59:15,703 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-03-17 19:59:15,703 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-03-17 19:59:15,703 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:59:15,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2025-03-17 19:59:15,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:59:15,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:59:15,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:59:15,705 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:59:15,705 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:59:15,705 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet211#1, main_#t~nondet212#1, main_#t~malloc213#1.base, main_#t~malloc213#1.offset, main_#t~malloc214#1.base, main_#t~malloc214#1.offset, main_#t~ret215#1.base, main_#t~ret215#1.offset, main_~length~0#1, main_~n~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc main_#t~nondet211#1;main_~length~0#1 := main_#t~nondet211#1;havoc main_#t~nondet211#1;havoc main_#t~nondet212#1;main_~n~0#1 := main_#t~nondet212#1;havoc main_#t~nondet212#1;" "assume !(main_~length~0#1 < 1);" "assume main_~n~0#1 < 1;main_~n~0#1 := 1;" "call main_#t~malloc213#1.base, main_#t~malloc213#1.offset := #Ultimate.allocOnStack(main_~n~0#1 % 18446744073709551616);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc213#1.base, main_#t~malloc213#1.offset;call main_#t~malloc214#1.base, main_#t~malloc214#1.offset := #Ultimate.allocOnStack(main_~length~0#1 % 18446744073709551616);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc214#1.base, main_#t~malloc214#1.offset;call write~int#0(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, 1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length~0#1 - 1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset + (main_~n~0#1 - 1);assume { :begin_inline_cstrncpy } true;cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset, cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset, cstrncpy_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, main_~n~0#1;havoc cstrncpy_#res#1.base, cstrncpy_#res#1.offset;havoc cstrncpy_#t~post205#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, cstrncpy_#t~mem208#1, cstrncpy_#t~post209#1, cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset, cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset, cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset, cstrncpy_~n#1, cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset, cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset, cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset, cstrncpy_~n2~0#1;cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset := cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset;cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset := cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset;cstrncpy_~n#1 := cstrncpy_#in~n#1;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset;havoc cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset;havoc cstrncpy_~n2~0#1;" "assume cstrncpy_~n#1 > 0;cstrncpy_#t~post205#1 := cstrncpy_~n#1;cstrncpy_~n#1 := cstrncpy_#t~post205#1 - 1;havoc cstrncpy_#t~post205#1;cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset := cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset - 1;cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset := cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset - 1;call cstrncpy_#t~mem208#1 := read~int#0(cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, 1);call write~int#1(cstrncpy_#t~mem208#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, 1);" "assume 0 == cstrncpy_#t~mem208#1;havoc cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset;havoc cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset;havoc cstrncpy_#t~mem208#1;cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset := cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset;cstrncpy_~n2~0#1 := cstrncpy_~n#1;" [2025-03-17 19:59:15,705 INFO L754 eck$LassoCheckResult]: Loop: "assume true;cstrncpy_#t~post209#1 := cstrncpy_~n2~0#1;cstrncpy_~n2~0#1 := cstrncpy_#t~post209#1 - 1;" "assume 0 != cstrncpy_#t~post209#1;havoc cstrncpy_#t~post209#1;cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset := cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset;cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset := cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset - 1;call write~int#1(0, cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset, 1);" [2025-03-17 19:59:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1448541629, now seen corresponding path program 1 times [2025-03-17 19:59:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408375262] [2025-03-17 19:59:15,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:15,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:15,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:15,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:15,731 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:15,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:15,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:15,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:15,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:15,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:15,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 1 times [2025-03-17 19:59:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:15,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663324648] [2025-03-17 19:59:15,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:15,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:15,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:15,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:15,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:15,766 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:15,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:15,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:15,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:15,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:15,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash 479101820, now seen corresponding path program 1 times [2025-03-17 19:59:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546673382] [2025-03-17 19:59:15,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:15,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:59:15,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:59:15,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:15,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:15,964 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 19:59:15,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:59:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546673382] [2025-03-17 19:59:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546673382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:59:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:59:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:59:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799016992] [2025-03-17 19:59:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:59:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:59:16,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:59:16,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:59:16,021 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 19:59:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:59:16,044 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2025-03-17 19:59:16,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2025-03-17 19:59:16,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:59:16,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 9 states and 11 transitions. [2025-03-17 19:59:16,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2025-03-17 19:59:16,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2025-03-17 19:59:16,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2025-03-17 19:59:16,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:59:16,045 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-03-17 19:59:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2025-03-17 19:59:16,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-17 19:59:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2025-03-17 19:59:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2025-03-17 19:59:16,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-03-17 19:59:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:59:16,047 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-03-17 19:59:16,047 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 19:59:16,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2025-03-17 19:59:16,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-17 19:59:16,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:59:16,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:59:16,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:59:16,048 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-17 19:59:16,048 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet211#1, main_#t~nondet212#1, main_#t~malloc213#1.base, main_#t~malloc213#1.offset, main_#t~malloc214#1.base, main_#t~malloc214#1.offset, main_#t~ret215#1.base, main_#t~ret215#1.offset, main_~length~0#1, main_~n~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc main_#t~nondet211#1;main_~length~0#1 := main_#t~nondet211#1;havoc main_#t~nondet211#1;havoc main_#t~nondet212#1;main_~n~0#1 := main_#t~nondet212#1;havoc main_#t~nondet212#1;" "assume !(main_~length~0#1 < 1);" "assume !(main_~n~0#1 < 1);" "call main_#t~malloc213#1.base, main_#t~malloc213#1.offset := #Ultimate.allocOnStack(main_~n~0#1 % 18446744073709551616);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc213#1.base, main_#t~malloc213#1.offset;call main_#t~malloc214#1.base, main_#t~malloc214#1.offset := #Ultimate.allocOnStack(main_~length~0#1 % 18446744073709551616);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc214#1.base, main_#t~malloc214#1.offset;call write~int#0(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, 1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length~0#1 - 1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset + (main_~n~0#1 - 1);assume { :begin_inline_cstrncpy } true;cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset, cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset, cstrncpy_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset, main_~n~0#1;havoc cstrncpy_#res#1.base, cstrncpy_#res#1.offset;havoc cstrncpy_#t~post205#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, cstrncpy_#t~mem208#1, cstrncpy_#t~post209#1, cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset, cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset, cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset, cstrncpy_~n#1, cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset, cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset, cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset, cstrncpy_~n2~0#1;cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset := cstrncpy_#in~s1#1.base, cstrncpy_#in~s1#1.offset;cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset := cstrncpy_#in~s2#1.base, cstrncpy_#in~s2#1.offset;cstrncpy_~n#1 := cstrncpy_#in~n#1;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_~s1#1.base, cstrncpy_~s1#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_~s2#1.base, cstrncpy_~s2#1.offset;havoc cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset;havoc cstrncpy_~n2~0#1;" "assume cstrncpy_~n#1 > 0;cstrncpy_#t~post205#1 := cstrncpy_~n#1;cstrncpy_~n#1 := cstrncpy_#t~post205#1 - 1;havoc cstrncpy_#t~post205#1;cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset := cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset;cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset := cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset - 1;cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset := cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset;cstrncpy_~src~0#1.base, cstrncpy_~src~0#1.offset := cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset - 1;call cstrncpy_#t~mem208#1 := read~int#0(cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset, 1);call write~int#1(cstrncpy_#t~mem208#1, cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset, 1);" "assume 0 == cstrncpy_#t~mem208#1;havoc cstrncpy_#t~post206#1.base, cstrncpy_#t~post206#1.offset;havoc cstrncpy_#t~post207#1.base, cstrncpy_#t~post207#1.offset;havoc cstrncpy_#t~mem208#1;cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset := cstrncpy_~dst~0#1.base, cstrncpy_~dst~0#1.offset;cstrncpy_~n2~0#1 := cstrncpy_~n#1;" [2025-03-17 19:59:16,048 INFO L754 eck$LassoCheckResult]: Loop: "assume true;cstrncpy_#t~post209#1 := cstrncpy_~n2~0#1;cstrncpy_~n2~0#1 := cstrncpy_#t~post209#1 - 1;" "assume 0 != cstrncpy_#t~post209#1;havoc cstrncpy_#t~post209#1;cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset := cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset;cstrncpy_~us~0#1.base, cstrncpy_~us~0#1.offset := cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset - 1;call write~int#1(0, cstrncpy_#t~post210#1.base, cstrncpy_#t~post210#1.offset, 1);" [2025-03-17 19:59:16,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1448571420, now seen corresponding path program 1 times [2025-03-17 19:59:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446143802] [2025-03-17 19:59:16,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:16,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:16,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:16,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:16,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:16,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,068 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:16,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:16,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:16,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:16,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:16,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 2 times [2025-03-17 19:59:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261065763] [2025-03-17 19:59:16,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:59:16,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:16,095 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:16,096 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:16,096 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:59:16,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,096 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:16,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:16,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:16,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:16,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:16,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash 507730971, now seen corresponding path program 1 times [2025-03-17 19:59:16,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:59:16,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679952451] [2025-03-17 19:59:16,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:59:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:59:16,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:59:16,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:59:16,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:16,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,124 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:59:16,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:59:16,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:59:16,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:16,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:59:16,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:59:16,845 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:59:16,845 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:59:16,845 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:59:16,845 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:59:16,845 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:59:16,845 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:16,845 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:59:16,845 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:59:16,845 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration3_Lasso [2025-03-17 19:59:16,845 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:59:16,845 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:59:16,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:16,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:59:17,434 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:59:17,434 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:59:17,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,436 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) [2025-03-17 19:59:17,436 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 [2025-03-17 19:59:17,437 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 19:59:17,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,449 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-17 19:59:17,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,456 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) [2025-03-17 19:59:17,457 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 [2025-03-17 19:59:17,458 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 19:59:17,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,468 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,474 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 [2025-03-17 19:59:17,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,476 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) [2025-03-17 19:59:17,476 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 [2025-03-17 19:59:17,477 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 19:59:17,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,488 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,493 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 [2025-03-17 19:59:17,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,495 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) [2025-03-17 19:59:17,496 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 [2025-03-17 19:59:17,497 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 19:59:17,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,508 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-03-17 19:59:17,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,516 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) [2025-03-17 19:59:17,516 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 [2025-03-17 19:59:17,517 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 19:59:17,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,528 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,533 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 [2025-03-17 19:59:17,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,535 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) [2025-03-17 19:59:17,536 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 [2025-03-17 19:59:17,537 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 19:59:17,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,548 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,553 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 [2025-03-17 19:59:17,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,557 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) [2025-03-17 19:59:17,557 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 [2025-03-17 19:59:17,558 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 19:59:17,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,573 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,578 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 [2025-03-17 19:59:17,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,580 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) [2025-03-17 19:59:17,581 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 [2025-03-17 19:59:17,582 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 19:59:17,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,596 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,601 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 [2025-03-17 19:59:17,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,603 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) [2025-03-17 19:59:17,604 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 [2025-03-17 19:59:17,605 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 19:59:17,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,616 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,621 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 [2025-03-17 19:59:17,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,623 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) [2025-03-17 19:59:17,623 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 [2025-03-17 19:59:17,625 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 19:59:17,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,636 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-17 19:59:17,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,643 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) [2025-03-17 19:59:17,644 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 [2025-03-17 19:59:17,645 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 19:59:17,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,656 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,661 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 [2025-03-17 19:59:17,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,663 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) [2025-03-17 19:59:17,664 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 [2025-03-17 19:59:17,665 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 19:59:17,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,676 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,681 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 [2025-03-17 19:59:17,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,683 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) [2025-03-17 19:59:17,684 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 [2025-03-17 19:59:17,685 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 19:59:17,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,698 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,704 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 [2025-03-17 19:59:17,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,706 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) [2025-03-17 19:59:17,708 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 [2025-03-17 19:59:17,709 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 19:59:17,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,721 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-03-17 19:59:17,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,729 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) [2025-03-17 19:59:17,729 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 [2025-03-17 19:59:17,731 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 19:59:17,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,743 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-03-17 19:59:17,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,752 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) [2025-03-17 19:59:17,753 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 [2025-03-17 19:59:17,755 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 19:59:17,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,769 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,775 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 [2025-03-17 19:59:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,777 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) [2025-03-17 19:59:17,777 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 [2025-03-17 19:59:17,778 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 19:59:17,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,789 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-17 19:59:17,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,797 INFO L229 MonitoredProcess]: Starting monitored process 26 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 19:59:17,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-17 19:59:17,799 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 19:59:17,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:59:17,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:59:17,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:59:17,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:59:17,810 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:59:17,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-03-17 19:59:17,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,818 INFO L229 MonitoredProcess]: Starting monitored process 27 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 19:59:17,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-17 19:59:17,819 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 19:59:17,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:59:17,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:59:17,829 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-17 19:59:17,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:59:17,848 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-03-17 19:59:17,848 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-03-17 19:59:17,877 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:59:17,948 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2025-03-17 19:59:17,948 INFO L444 ModelExtractionUtils]: 9 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. [2025-03-17 19:59:17,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:59:17,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:59:17,952 INFO L229 MonitoredProcess]: Starting monitored process 28 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 19:59:17,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-03-17 19:59:17,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:59:17,965 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2025-03-17 19:59:17,965 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:59:17,966 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n2~0#1) = 1*ULTIMATE.start_cstrncpy_~n2~0#1 Supporting invariants [1*ULTIMATE.start_cstrncpy_~n2~0#1 >= 0] [2025-03-17 19:59:17,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-03-17 19:59:17,994 INFO L156 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2025-03-17 19:59:18,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:18,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:18,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:18,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:18,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:18,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:59:18,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:18,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:18,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:18,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:18,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:18,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:59:18,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:18,079 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 19:59:18,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-03-17 19:59:18,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 19:59:18,112 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 12 states and 14 transitions. Complement of second has 5 states. [2025-03-17 19:59:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2025-03-17 19:59:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 19:59:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2025-03-17 19:59:18,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2025-03-17 19:59:18,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:18,114 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:59:18,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:59:18,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:59:18,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:59:18,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:18,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:18,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:59:18,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:18,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:59:18,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:59:18,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:59:18,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:59:18,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:59:18,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:59:18,201 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 19:59:18,201 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2025-03-17 19:59:18,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 19:59:18,228 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 11 states and 14 transitions. Complement of second has 5 states. [2025-03-17 19:59:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-17 19:59:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 19:59:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2025-03-17 19:59:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2025-03-17 19:59:18,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2025-03-17 19:59:18,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:18,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2025-03-17 19:59:18,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:59:18,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2025-03-17 19:59:18,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:59:18,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:59:18,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:59:18,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:59:18,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 19:59:18,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:59:18,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:59:18,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:59:18,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:59:18 BoogieIcfgContainer [2025-03-17 19:59:18,240 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:59:18,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:59:18,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:59:18,241 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:59:18,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:59:13" (3/4) ... [2025-03-17 19:59:18,243 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:59:18,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:59:18,245 INFO L158 Benchmark]: Toolchain (without parser) took 5204.61ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 104.5MB in the beginning and 175.6MB in the end (delta: -71.0MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2025-03-17 19:59:18,245 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:59:18,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.85ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 87.1MB in the end (delta: 17.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:59:18,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.00ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:59:18,247 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:59:18,247 INFO L158 Benchmark]: IcfgBuilder took 262.78ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 69.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:59:18,247 INFO L158 Benchmark]: BuchiAutomizer took 4595.82ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 69.2MB in the beginning and 175.6MB in the end (delta: -106.4MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2025-03-17 19:59:18,248 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 285.2MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:59:18,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.85ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 87.1MB in the end (delta: 17.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.00ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 262.78ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 69.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4595.82ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 69.2MB in the beginning and 175.6MB in the end (delta: -106.4MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 285.2MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~dst~0!offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 3 locations. One deterministic module has affine ranking function n2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [1, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 36 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax100 hnf100 lsp95 ukn84 mio100 lsp31 div175 bol100 ite100 ukn100 eq159 hnf93 smp66 dnf118 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 149ms VariablesStem: 7 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:59:18,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-03-17 19:59:18,461 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