./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 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/array-memsafety/openbsd_cstrnlen-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:45:48,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:45:48,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 15:45:48,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:45:48,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:45:48,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:45:48,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:45:48,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:45:48,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:45:48,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:45:48,757 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:45:48,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:45:48,758 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:45:48,758 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:45:48,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:45:48,759 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:45:48,760 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:45:48,760 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:45:48,760 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:45:48,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:45:48,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:45:48,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:45:48,760 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:45:48,760 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b [2025-03-04 15:45:48,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:45:48,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:45:48,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:45:48,995 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:45:48,995 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:45:48,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2025-03-04 15:45:50,092 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230b961d8/b9c37a56cae84669b0d03a8577dc10ea/FLAG829d21d53 [2025-03-04 15:45:50,387 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:45:50,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2025-03-04 15:45:50,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230b961d8/b9c37a56cae84669b0d03a8577dc10ea/FLAG829d21d53 [2025-03-04 15:45:50,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230b961d8/b9c37a56cae84669b0d03a8577dc10ea [2025-03-04 15:45:50,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:45:50,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:45:50,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:45:50,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:45:50,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:45:50,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:50,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75324191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50, skipping insertion in model container [2025-03-04 15:45:50,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:50,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:45:50,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:45:50,914 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:45:50,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:45:50,969 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:45:50,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50 WrapperNode [2025-03-04 15:45:50,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:45:50,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:45:50,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:45:50,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:45:50,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:50,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:50,998 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2025-03-04 15:45:50,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:45:51,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:45:51,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:45:51,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:45:51,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,013 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2025-03-04 15:45:51,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,021 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:45:51,025 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:45:51,026 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:45:51,026 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:45:51,026 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (1/1) ... [2025-03-04 15:45:51,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:51,047 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) [2025-03-04 15:45:51,049 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 [2025-03-04 15:45:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:45:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:45:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:45:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:45:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:45:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:45:51,131 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:45:51,132 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:45:51,218 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: havoc main_#t~ret11#1;call ULTIMATE.dealloc(main_#t~malloc8#1.base, main_#t~malloc8#1.offset);havoc main_#t~malloc8#1.base, main_#t~malloc8#1.offset; [2025-03-04 15:45:51,228 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-04 15:45:51,228 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:45:51,233 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:45:51,234 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:45:51,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:45:51 BoogieIcfgContainer [2025-03-04 15:45:51,234 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:45:51,235 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:45:51,235 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:45:51,239 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:45:51,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:45:51,239 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:45:50" (1/3) ... [2025-03-04 15:45:51,240 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@381a787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:45:51, skipping insertion in model container [2025-03-04 15:45:51,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:45:51,240 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:45:50" (2/3) ... [2025-03-04 15:45:51,241 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@381a787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:45:51, skipping insertion in model container [2025-03-04 15:45:51,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:45:51,241 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:45:51" (3/3) ... [2025-03-04 15:45:51,242 INFO L363 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca-1.i [2025-03-04 15:45:51,272 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:45:51,272 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:45:51,272 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:45:51,272 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:45:51,272 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:45:51,272 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:45:51,272 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:45:51,272 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:45:51,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2025-03-04 15:45:51,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-03-04 15:45:51,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:45:51,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:45:51,291 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-04 15:45:51,291 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:45:51,291 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:45:51,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2025-03-04 15:45:51,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-03-04 15:45:51,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:45:51,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:45:51,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-04 15:45:51,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-04 15:45:51,298 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~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet9#1, main_#t~post10#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~length1~0#1 < 1);" "assume !(main_~n~0#1 < 1);" "call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0;" [2025-03-04 15:45:51,298 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~length1~0#1 - 1;havoc main_#t~nondet9#1;call write~int#0(main_#t~nondet9#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1;main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1;" [2025-03-04 15:45:51,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash 49592018, now seen corresponding path program 1 times [2025-03-04 15:45:51,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:51,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079258435] [2025-03-04 15:45:51,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:51,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:45:51,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:45:51,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,381 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:51,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:45:51,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:45:51,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:51,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2025-03-04 15:45:51,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:51,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356753298] [2025-03-04 15:45:51,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:51,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:51,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:45:51,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:45:51,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,420 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:51,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:45:51,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:45:51,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:51,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1537352573, now seen corresponding path program 1 times [2025-03-04 15:45:51,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:51,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490306890] [2025-03-04 15:45:51,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:51,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:51,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:45:51,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:45:51,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,461 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:51,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:45:51,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:45:51,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:51,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:51,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:51,727 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:45:51,727 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:45:51,728 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:45:51,728 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:45:51,728 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:45:51,728 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:51,728 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:45:51,728 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:45:51,729 INFO L132 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration1_Lasso [2025-03-04 15:45:51,729 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:45:51,729 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:45:51,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:51,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:52,119 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:45:52,121 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:45:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,124 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) [2025-03-04 15:45:52,125 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 [2025-03-04 15:45:52,130 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 [2025-03-04 15:45:52,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,152 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,159 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 [2025-03-04 15:45:52,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,162 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) [2025-03-04 15:45:52,163 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 [2025-03-04 15:45:52,169 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 [2025-03-04 15:45:52,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:52,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:52,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:52,182 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,188 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 [2025-03-04 15:45:52,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,190 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) [2025-03-04 15:45:52,191 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 [2025-03-04 15:45:52,194 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 [2025-03-04 15:45:52,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,213 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 15:45:52,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,221 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) [2025-03-04 15:45:52,222 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 [2025-03-04 15:45:52,223 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 [2025-03-04 15:45:52,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:52,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:52,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:52,236 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,242 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 [2025-03-04 15:45:52,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,244 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) [2025-03-04 15:45:52,246 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 [2025-03-04 15:45:52,247 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 [2025-03-04 15:45:52,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,262 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,267 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 [2025-03-04 15:45:52,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,269 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) [2025-03-04 15:45:52,270 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 [2025-03-04 15:45:52,271 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 [2025-03-04 15:45:52,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:52,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:52,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:52,283 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,289 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 [2025-03-04 15:45:52,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,291 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) [2025-03-04 15:45:52,291 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 [2025-03-04 15:45:52,304 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 [2025-03-04 15:45:52,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:52,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:52,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:52,315 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,320 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 [2025-03-04 15:45:52,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,330 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) [2025-03-04 15:45:52,331 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 [2025-03-04 15:45:52,331 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 [2025-03-04 15:45:52,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:52,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:52,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:52,343 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:52,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,352 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) [2025-03-04 15:45:52,353 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 [2025-03-04 15:45:52,354 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 [2025-03-04 15:45:52,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,375 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:52,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,384 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) [2025-03-04 15:45:52,399 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 [2025-03-04 15:45:52,400 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 [2025-03-04 15:45:52,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,414 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,418 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:52,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,427 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) [2025-03-04 15:45:52,428 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 [2025-03-04 15:45:52,429 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 [2025-03-04 15:45:52,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,447 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:52,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:52,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,456 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) [2025-03-04 15:45:52,458 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 [2025-03-04 15:45:52,458 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 [2025-03-04 15:45:52,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:52,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:52,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:52,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:52,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:52,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:52,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:45:52,511 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2025-03-04 15:45:52,513 INFO L444 ModelExtractionUtils]: 2 out of 19 variables were initially zero. Simplification set additionally 13 variables to zero. [2025-03-04 15:45:52,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:52,518 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) [2025-03-04 15:45:52,519 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 [2025-03-04 15:45:52,520 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:45:52,537 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-03-04 15:45:52,537 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:45:52,538 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2025-03-04 15:45:52,544 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 [2025-03-04 15:45:52,558 INFO L156 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2025-03-04 15:45:52,566 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2025-03-04 15:45:52,567 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2025-03-04 15:45:52,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:52,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 15:45:52,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 15:45:52,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:45:52,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:45:52,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:45:52,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-04 15:45:52,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-04 15:45:52,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:45:52,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:45:52,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:45:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:45:52,648 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-03-04 15:45:52,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-03-04 15:45:52,687 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 16 states and 23 transitions. Complement of second has 3 states. [2025-03-04 15:45:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-04 15:45:52,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2025-03-04 15:45:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2025-03-04 15:45:52,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2025-03-04 15:45:52,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:52,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2025-03-04 15:45:52,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:52,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2025-03-04 15:45:52,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:52,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2025-03-04 15:45:52,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:45:52,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 11 states and 16 transitions. [2025-03-04 15:45:52,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-03-04 15:45:52,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2025-03-04 15:45:52,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2025-03-04 15:45:52,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:45:52,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2025-03-04 15:45:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2025-03-04 15:45:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2025-03-04 15:45:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:45:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2025-03-04 15:45:52,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2025-03-04 15:45:52,721 INFO L432 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2025-03-04 15:45:52,721 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:45:52,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2025-03-04 15:45:52,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:45:52,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:45:52,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:45:52,722 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:45:52,722 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:45:52,722 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~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet9#1, main_#t~post10#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~length1~0#1 < 1);" "assume !(main_~n~0#1 < 1);" "call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0;" "assume !(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_~i~0#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset, cstrnlen_#in~maxlen#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~n~0#1;havoc cstrnlen_#res#1;havoc cstrnlen_#t~mem2#1, cstrnlen_#t~short3#1, cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset, cstrnlen_#t~post5#1, cstrnlen_~str#1.base, cstrnlen_~str#1.offset, cstrnlen_~maxlen#1, cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~str#1.base, cstrnlen_~str#1.offset := cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset;cstrnlen_~maxlen#1 := cstrnlen_#in~maxlen#1;havoc cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_~str#1.base, cstrnlen_~str#1.offset;" [2025-03-04 15:45:52,722 INFO L754 eck$LassoCheckResult]: Loop: "assume true;cstrnlen_#t~short3#1 := 0 != cstrnlen_~maxlen#1 % 4294967296;" "assume cstrnlen_#t~short3#1;call cstrnlen_#t~mem2#1 := read~int#0(cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset, 1);cstrnlen_#t~short3#1 := 0 != cstrnlen_#t~mem2#1;" "assume cstrnlen_#t~short3#1;havoc cstrnlen_#t~mem2#1;havoc cstrnlen_#t~short3#1;cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset := cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_#t~post4#1.base, 1 + cstrnlen_#t~post4#1.offset;havoc cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset;cstrnlen_#t~post5#1 := cstrnlen_~maxlen#1;cstrnlen_~maxlen#1 := cstrnlen_#t~post5#1 - 1;havoc cstrnlen_#t~post5#1;" [2025-03-04 15:45:52,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1537352572, now seen corresponding path program 1 times [2025-03-04 15:45:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627141310] [2025-03-04 15:45:52,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:52,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:45:52,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:45:52,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:52,742 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:52,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:45:52,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:45:52,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:52,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:52,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:52,757 INFO L85 PathProgramCache]: Analyzing trace with hash 41642, now seen corresponding path program 1 times [2025-03-04 15:45:52,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:52,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109884245] [2025-03-04 15:45:52,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:52,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:52,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:45:52,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:45:52,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:52,770 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:52,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:45:52,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:45:52,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:52,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:52,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:52,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2034207055, now seen corresponding path program 1 times [2025-03-04 15:45:52,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:52,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692236882] [2025-03-04 15:45:52,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:52,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:45:52,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:45:52,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:52,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:45:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:45:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:45:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692236882] [2025-03-04 15:45:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692236882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:45:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:45:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:45:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983918438] [2025-03-04 15:45:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:45:53,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:45:53,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:45:53,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:45:53,179 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2025-03-04 15:45:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 15:45:53,217 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2025-03-04 15:45:53,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2025-03-04 15:45:53,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:45:53,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2025-03-04 15:45:53,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-03-04 15:45:53,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2025-03-04 15:45:53,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2025-03-04 15:45:53,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:45:53,220 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2025-03-04 15:45:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2025-03-04 15:45:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2025-03-04 15:45:53,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:45:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2025-03-04 15:45:53,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2025-03-04 15:45:53,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:45:53,223 INFO L432 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2025-03-04 15:45:53,223 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 15:45:53,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2025-03-04 15:45:53,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-03-04 15:45:53,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:45:53,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:45:53,224 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:45:53,224 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-04 15:45:53,224 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~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet9#1, main_#t~post10#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~length1~0#1 < 1);" "assume !(main_~n~0#1 < 1);" "call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~length1~0#1 - 1;havoc main_#t~nondet9#1;call write~int#0(main_#t~nondet9#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1;main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1;" "assume !(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_~i~0#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset, cstrnlen_#in~maxlen#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~n~0#1;havoc cstrnlen_#res#1;havoc cstrnlen_#t~mem2#1, cstrnlen_#t~short3#1, cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset, cstrnlen_#t~post5#1, cstrnlen_~str#1.base, cstrnlen_~str#1.offset, cstrnlen_~maxlen#1, cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~str#1.base, cstrnlen_~str#1.offset := cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset;cstrnlen_~maxlen#1 := cstrnlen_#in~maxlen#1;havoc cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_~str#1.base, cstrnlen_~str#1.offset;" [2025-03-04 15:45:53,224 INFO L754 eck$LassoCheckResult]: Loop: "assume true;cstrnlen_#t~short3#1 := 0 != cstrnlen_~maxlen#1 % 4294967296;" "assume cstrnlen_#t~short3#1;call cstrnlen_#t~mem2#1 := read~int#0(cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset, 1);cstrnlen_#t~short3#1 := 0 != cstrnlen_#t~mem2#1;" "assume cstrnlen_#t~short3#1;havoc cstrnlen_#t~mem2#1;havoc cstrnlen_#t~short3#1;cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset := cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_#t~post4#1.base, 1 + cstrnlen_#t~post4#1.offset;havoc cstrnlen_#t~post4#1.base, cstrnlen_#t~post4#1.offset;cstrnlen_#t~post5#1 := cstrnlen_~maxlen#1;cstrnlen_~maxlen#1 := cstrnlen_#t~post5#1 - 1;havoc cstrnlen_#t~post5#1;" [2025-03-04 15:45:53,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:53,224 INFO L85 PathProgramCache]: Analyzing trace with hash 413289521, now seen corresponding path program 1 times [2025-03-04 15:45:53,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:53,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447309975] [2025-03-04 15:45:53,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:53,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:53,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:45:53,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:45:53,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:53,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,239 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:53,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:45:53,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:45:53,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:53,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:53,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 41642, now seen corresponding path program 2 times [2025-03-04 15:45:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:53,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442747960] [2025-03-04 15:45:53,251 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:45:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:53,255 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:45:53,256 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:45:53,256 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:45:53,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,256 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:53,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:45:53,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:45:53,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:53,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:53,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:53,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1363105670, now seen corresponding path program 1 times [2025-03-04 15:45:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:45:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575864551] [2025-03-04 15:45:53,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:45:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:45:53,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:45:53,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:45:53,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:53,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,284 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:45:53,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:45:53,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:45:53,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:53,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:45:53,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:45:53,540 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 [2025-03-04 15:45:53,593 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:45:53,594 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:45:53,594 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:45:53,594 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:45:53,594 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:45:53,594 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:53,594 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:45:53,594 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:45:53,594 INFO L132 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration3_Lasso [2025-03-04 15:45:53,594 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:45:53,594 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:45:53,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:45:53,953 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:45:53,953 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:45:53,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:53,955 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) [2025-03-04 15:45:53,957 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 [2025-03-04 15:45:53,959 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 [2025-03-04 15:45:53,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:53,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:53,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:53,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:53,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:53,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:53,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:53,973 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:53,979 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 [2025-03-04 15:45:53,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:53,981 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) [2025-03-04 15:45:53,981 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 [2025-03-04 15:45:53,983 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 [2025-03-04 15:45:53,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:53,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:53,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:53,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:53,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:53,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:53,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:53,994 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:53,999 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 [2025-03-04 15:45:53,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,001 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) [2025-03-04 15:45:54,002 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 [2025-03-04 15:45:54,003 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 [2025-03-04 15:45:54,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,014 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,019 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 [2025-03-04 15:45:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,021 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) [2025-03-04 15:45:54,022 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 [2025-03-04 15:45:54,023 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 [2025-03-04 15:45:54,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:54,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:54,037 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,043 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 [2025-03-04 15:45:54,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,045 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) [2025-03-04 15:45:54,047 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 [2025-03-04 15:45:54,049 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 [2025-03-04 15:45:54,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,060 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,066 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 [2025-03-04 15:45:54,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,069 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) [2025-03-04 15:45:54,071 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 [2025-03-04 15:45:54,072 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 [2025-03-04 15:45:54,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,084 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:54,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,092 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) [2025-03-04 15:45:54,094 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 [2025-03-04 15:45:54,095 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 [2025-03-04 15:45:54,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,107 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,113 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 [2025-03-04 15:45:54,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,115 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) [2025-03-04 15:45:54,116 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 [2025-03-04 15:45:54,116 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 [2025-03-04 15:45:54,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:54,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:54,135 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-04 15:45:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,142 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) [2025-03-04 15:45:54,143 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 [2025-03-04 15:45:54,144 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 [2025-03-04 15:45:54,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,154 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:54,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,162 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) [2025-03-04 15:45:54,162 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 [2025-03-04 15:45:54,164 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 [2025-03-04 15:45:54,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,175 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,180 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 [2025-03-04 15:45:54,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,181 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) [2025-03-04 15:45:54,183 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 [2025-03-04 15:45:54,183 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 [2025-03-04 15:45:54,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,194 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,199 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 [2025-03-04 15:45:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,201 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) [2025-03-04 15:45:54,202 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 [2025-03-04 15:45:54,203 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 [2025-03-04 15:45:54,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,216 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-03-04 15:45:54,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,223 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) [2025-03-04 15:45:54,224 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 [2025-03-04 15:45:54,225 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 [2025-03-04 15:45:54,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:45:54,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:45:54,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:45:54,236 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 15:45:54,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-04 15:45:54,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,244 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) [2025-03-04 15:45:54,247 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 [2025-03-04 15:45:54,247 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 [2025-03-04 15:45:54,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:45:54,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:45:54,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:45:54,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:45:54,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-04 15:45:54,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-04 15:45:54,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:45:54,276 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2025-03-04 15:45:54,276 INFO L444 ModelExtractionUtils]: 2 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2025-03-04 15:45:54,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:45:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:45:54,278 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2025-03-04 15:45:54,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-03-04 15:45:54,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:45:54,289 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-03-04 15:45:54,290 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:45:54,290 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrnlen_~cp~0#1.offset, v_rep(select #length ULTIMATE.start_cstrnlen_~cp~0#1.base)_1) = -1*ULTIMATE.start_cstrnlen_~cp~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrnlen_~cp~0#1.base)_1 Supporting invariants [] [2025-03-04 15:45:54,295 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 [2025-03-04 15:45:54,306 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2025-03-04 15:45:54,307 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2025-03-04 15:45:54,308 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2025-03-04 15:45:54,308 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~cp~0!offset [2025-03-04 15:45:54,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:45:54,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:45:54,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:45:54,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:54,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:45:54,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:45:54,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:45:54,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:45:54,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:45:54,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:45:54,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:45:54,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:45:54,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:45:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:45:54,366 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 [2025-03-04 15:45:54,366 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-03-04 15:45:54,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 13 states and 17 transitions. Complement of second has 6 states. [2025-03-04 15:45:54,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-04 15:45:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-03-04 15:45:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2025-03-04 15:45:54,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2025-03-04 15:45:54,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:54,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2025-03-04 15:45:54,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:54,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2025-03-04 15:45:54,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:45:54,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2025-03-04 15:45:54,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:45:54,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:45:54,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:45:54,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:45:54,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 15:45:54,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:45:54,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:45:54,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:45:54,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:45:54 BoogieIcfgContainer [2025-03-04 15:45:54,387 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:45:54,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:45:54,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:45:54,387 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:45:54,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:45:51" (3/4) ... [2025-03-04 15:45:54,389 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:45:54,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:45:54,390 INFO L158 Benchmark]: Toolchain (without parser) took 3734.03ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 92.5MB in the end (delta: 61.5MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2025-03-04 15:45:54,390 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:45:54,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.28ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 137.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 15:45:54,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.50ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 136.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:45:54,391 INFO L158 Benchmark]: Boogie Preprocessor took 25.09ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:45:54,392 INFO L158 Benchmark]: IcfgBuilder took 208.83ms. Allocated memory is still 201.3MB. Free memory was 134.7MB in the beginning and 122.2MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 15:45:54,392 INFO L158 Benchmark]: BuchiAutomizer took 3151.56ms. Allocated memory is still 201.3MB. Free memory was 122.2MB in the beginning and 92.6MB in the end (delta: 29.6MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2025-03-04 15:45:54,392 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 201.3MB. Free memory was 92.6MB in the beginning and 92.5MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:45:54,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.28ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 137.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.50ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 136.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.09ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 208.83ms. Allocated memory is still 201.3MB. Free memory was 134.7MB in the beginning and 122.2MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3151.56ms. Allocated memory is still 201.3MB. Free memory was 122.2MB in the beginning and 92.6MB in the end (delta: 29.6MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 201.3MB. Free memory was 92.6MB in the beginning and 92.5MB in the end (delta: 50.8kB). 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: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~cp~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 2 locations. One deterministic module has affine ranking function null 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 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 26 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital101 mio100 ax117 hnf100 lsp76 ukn86 mio100 lsp47 div175 bol100 ite100 ukn100 eq151 hnf94 smp68 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:45:54,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-03-04 15:45:54,609 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