./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-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 dd76b7822e4f01d656aa547f942373edd42b5cbb2c90dd9f0d7299ee64d98734 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-25 00:00:35,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 00:00:35,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-25 00:00:35,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 00:00:35,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 00:00:35,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 00:00:35,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 00:00:35,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 00:00:35,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-25 00:00:35,867 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-25 00:00:35,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 00:00:35,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 00:00:35,869 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 00:00:35,869 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-25 00:00:35,872 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-25 00:00:35,873 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-25 00:00:35,873 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-25 00:00:35,873 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-25 00:00:35,874 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-25 00:00:35,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 00:00:35,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-25 00:00:35,875 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 00:00:35,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 00:00:35,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 00:00:35,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 00:00:35,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-25 00:00:35,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-25 00:00:35,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-25 00:00:35,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 00:00:35,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-25 00:00:35,876 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 00:00:35,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 00:00:35,877 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-25 00:00:35,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 00:00:35,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 00:00:35,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 00:00:35,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 00:00:35,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 00:00:35,880 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-25 00:00:35,880 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd76b7822e4f01d656aa547f942373edd42b5cbb2c90dd9f0d7299ee64d98734 [2024-10-25 00:00:36,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 00:00:36,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 00:00:36,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 00:00:36,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 00:00:36,182 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 00:00:36,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2024-10-25 00:00:37,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 00:00:37,996 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 00:00:37,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2024-10-25 00:00:38,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52efb5fc9/dfffcb0ec2224ebda705226eb26ed2f5/FLAG022c6024c [2024-10-25 00:00:38,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52efb5fc9/dfffcb0ec2224ebda705226eb26ed2f5 [2024-10-25 00:00:38,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 00:00:38,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 00:00:38,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 00:00:38,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 00:00:38,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 00:00:38,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d1474d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38, skipping insertion in model container [2024-10-25 00:00:38,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 00:00:38,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:00:38,475 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 00:00:38,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:00:38,555 INFO L204 MainTranslator]: Completed translation [2024-10-25 00:00:38,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38 WrapperNode [2024-10-25 00:00:38,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 00:00:38,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 00:00:38,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 00:00:38,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 00:00:38,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,606 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2024-10-25 00:00:38,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 00:00:38,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 00:00:38,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 00:00:38,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 00:00:38,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,645 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]. [2024-10-25 00:00:38,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 00:00:38,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 00:00:38,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 00:00:38,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 00:00:38,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (1/1) ... [2024-10-25 00:00:38,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:38,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:38,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-25 00:00:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-25 00:00:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-25 00:00:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-25 00:00:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-25 00:00:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 00:00:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 00:00:38,848 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 00:00:38,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 00:00:38,962 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-25 00:00:38,963 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 00:00:38,978 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 00:00:38,978 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-25 00:00:38,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:00:38 BoogieIcfgContainer [2024-10-25 00:00:38,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 00:00:38,980 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-25 00:00:38,981 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-25 00:00:38,985 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-25 00:00:38,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:00:38,987 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.10 12:00:38" (1/3) ... [2024-10-25 00:00:38,989 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7546ce04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:00:38, skipping insertion in model container [2024-10-25 00:00:38,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:00:38,989 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:00:38" (2/3) ... [2024-10-25 00:00:38,989 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7546ce04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:00:38, skipping insertion in model container [2024-10-25 00:00:38,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:00:38,990 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:00:38" (3/3) ... [2024-10-25 00:00:38,992 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca-1.i [2024-10-25 00:00:39,057 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-25 00:00:39,058 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-25 00:00:39,058 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-25 00:00:39,058 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-25 00:00:39,058 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-25 00:00:39,059 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-25 00:00:39,059 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-25 00:00:39,059 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-25 00:00:39,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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) [2024-10-25 00:00:39,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-10-25 00:00:39,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:00:39,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:00:39,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-25 00:00:39,106 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-25 00:00:39,106 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-25 00:00:39,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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) [2024-10-25 00:00:39,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-10-25 00:00:39,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:00:39,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:00:39,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-25 00:00:39,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-25 00:00:39,120 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet6#1, main_#t~post7#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet4#1;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9#L524true assume !(main_~length1~0#1 < 1); 14#L524-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 5#L528-3true [2024-10-25 00:00:39,122 INFO L747 eck$LassoCheckResult]: Loop: 5#L528-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet6#1;call write~int#0(main_#t~nondet6#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 7#L528-2true main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 5#L528-3true [2024-10-25 00:00:39,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:39,133 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2024-10-25 00:00:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:39,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768201468] [2024-10-25 00:00:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:39,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2024-10-25 00:00:39,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483937545] [2024-10-25 00:00:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:39,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:39,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2024-10-25 00:00:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141566501] [2024-10-25 00:00:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:39,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:39,780 INFO L204 LassoAnalysis]: Preferences: [2024-10-25 00:00:39,781 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-25 00:00:39,781 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-25 00:00:39,781 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-25 00:00:39,781 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-25 00:00:39,781 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:39,782 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-25 00:00:39,782 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-25 00:00:39,782 INFO L132 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration1_Lasso [2024-10-25 00:00:39,782 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-25 00:00:39,782 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-25 00:00:39,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:39,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:40,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:40,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:40,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-25 00:00:40,284 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-25 00:00:40,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-25 00:00:40,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:40,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:40,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-25 00:00:40,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:40,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:40,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:40,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-25 00:00:40,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-25 00:00:40,310 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:40,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-25 00:00:40,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-25 00:00:40,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:40,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:40,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:40,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:40,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:40,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:40,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:40,368 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:40,386 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 [2024-10-25 00:00:40,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-25 00:00:40,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:40,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:40,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-25 00:00:40,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:40,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:40,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:40,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-25 00:00:40,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-25 00:00:40,411 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:40,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-25 00:00:40,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-25 00:00:40,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:40,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:40,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:40,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:40,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:40,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:40,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:40,458 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:40,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-25 00:00:40,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-25 00:00:40,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:40,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:40,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:40,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:40,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:40,497 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:40,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:40,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-25 00:00:40,531 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2024-10-25 00:00:40,531 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-10-25 00:00:40,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:40,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:40,553 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:40,561 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-25 00:00:40,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-25 00:00:40,577 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-25 00:00:40,578 INFO L474 LassoAnalysis]: Proved termination. [2024-10-25 00:00:40,579 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~length1~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~length1~0#1 Supporting invariants [] [2024-10-25 00:00:40,596 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 [2024-10-25 00:00:40,609 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-10-25 00:00:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:00:40,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-25 00:00:40,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 00:00:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:00:40,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-25 00:00:40,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 00:00:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:00:40,740 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-25 00:00:40,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:40,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 34 transitions. Complement of second has 6 states. [2024-10-25 00:00:40,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-25 00:00:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-25 00:00:40,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-25 00:00:40,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:40,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-25 00:00:40,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:40,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-25 00:00:40,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:40,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2024-10-25 00:00:40,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-25 00:00:40,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 11 states and 14 transitions. [2024-10-25 00:00:40,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-25 00:00:40,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-25 00:00:40,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-10-25 00:00:40,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:00:40,803 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-25 00:00:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-10-25 00:00:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-25 00:00:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-10-25 00:00:40,830 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-25 00:00:40,830 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-25 00:00:40,830 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-25 00:00:40,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-10-25 00:00:40,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-25 00:00:40,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:00:40,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:00:40,832 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-25 00:00:40,832 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-25 00:00:40,832 INFO L745 eck$LassoCheckResult]: Stem: 104#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet6#1, main_#t~post7#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet4#1;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 95#L524 assume !(main_~length1~0#1 < 1); 96#L524-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 100#L528-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 99#L528-4 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_cstrlen } true;cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~mem2#1, cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset, cstrlen_~str#1.base, cstrlen_~str#1.offset, cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~str#1.base, cstrlen_~str#1.offset := cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset;havoc cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~str#1.base, cstrlen_~str#1.offset; 97#L518-4 [2024-10-25 00:00:40,833 INFO L747 eck$LassoCheckResult]: Loop: 97#L518-4 call cstrlen_#t~mem2#1 := read~int#0(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1); 98#L518-1 assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1; 103#L518-3 cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset; 97#L518-4 [2024-10-25 00:00:40,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2024-10-25 00:00:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:40,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244948653] [2024-10-25 00:00:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:40,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:40,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:40,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:40,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:40,871 INFO L85 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2024-10-25 00:00:40,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:40,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570054293] [2024-10-25 00:00:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:40,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:40,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:40,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:40,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1183925680, now seen corresponding path program 1 times [2024-10-25 00:00:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502360939] [2024-10-25 00:00:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:40,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:00:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:00:41,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 00:00:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502360939] [2024-10-25 00:00:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502360939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 00:00:41,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 00:00:41,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-25 00:00:41,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373182688] [2024-10-25 00:00:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 00:00:41,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 00:00:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-25 00:00:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-25 00:00:41,300 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 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) [2024-10-25 00:00:41,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-25 00:00:41,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-25 00:00:41,431 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2024-10-25 00:00:41,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2024-10-25 00:00:41,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-25 00:00:41,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 14 transitions. [2024-10-25 00:00:41,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-25 00:00:41,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-25 00:00:41,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-10-25 00:00:41,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:00:41,436 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-25 00:00:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-10-25 00:00:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-25 00:00:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-10-25 00:00:41,437 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-25 00:00:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-25 00:00:41,439 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-25 00:00:41,439 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-25 00:00:41,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-10-25 00:00:41,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-25 00:00:41,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:00:41,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:00:41,440 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:00:41,440 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-25 00:00:41,441 INFO L745 eck$LassoCheckResult]: Stem: 143#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet6#1, main_#t~post7#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet4#1;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 135#L524 assume !(main_~length1~0#1 < 1); 136#L524-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 140#L528-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet6#1;call write~int#0(main_#t~nondet6#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet6#1; 141#L528-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 142#L528-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 139#L528-4 havoc main_~i~0#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~mem2#1, cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset, cstrlen_~str#1.base, cstrlen_~str#1.offset, cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~str#1.base, cstrlen_~str#1.offset := cstrlen_#in~str#1.base, cstrlen_#in~str#1.offset;havoc cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~str#1.base, cstrlen_~str#1.offset; 137#L518-4 [2024-10-25 00:00:41,441 INFO L747 eck$LassoCheckResult]: Loop: 137#L518-4 call cstrlen_#t~mem2#1 := read~int#0(cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset, 1); 138#L518-1 assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1; 145#L518-3 cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;cstrlen_~s~0#1.base, cstrlen_~s~0#1.offset := cstrlen_~s~0#1.base, 1 + cstrlen_~s~0#1.offset;havoc cstrlen_#t~pre3#1.base, cstrlen_#t~pre3#1.offset; 137#L518-4 [2024-10-25 00:00:41,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2024-10-25 00:00:41,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:41,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542119449] [2024-10-25 00:00:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:41,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:41,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 2 times [2024-10-25 00:00:41,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:41,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808354315] [2024-10-25 00:00:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:41,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1235379726, now seen corresponding path program 1 times [2024-10-25 00:00:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:00:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653432093] [2024-10-25 00:00:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:00:41,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:00:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:00:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:00:41,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:00:41,848 INFO L204 LassoAnalysis]: Preferences: [2024-10-25 00:00:41,848 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-25 00:00:41,848 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-25 00:00:41,849 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-25 00:00:41,849 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-25 00:00:41,849 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:41,849 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-25 00:00:41,849 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-25 00:00:41,849 INFO L132 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration3_Lasso [2024-10-25 00:00:41,849 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-25 00:00:41,849 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-25 00:00:41,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-25 00:00:42,310 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-25 00:00:42,311 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-25 00:00:42,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,313 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-25 00:00:42,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:42,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:42,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:42,340 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:42,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-25 00:00:42,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-25 00:00:42,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:42,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:42,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:42,381 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:42,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-25 00:00:42,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,400 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-25 00:00:42,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,417 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-25 00:00:42,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,422 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-25 00:00:42,423 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-25 00:00:42,432 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:42,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-25 00:00:42,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,451 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-25 00:00:42,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:42,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:42,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:42,476 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:42,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-25 00:00:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,495 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-25 00:00:42,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:42,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:42,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:42,529 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-25 00:00:42,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-25 00:00:42,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,551 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-25 00:00:42,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-25 00:00:42,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-25 00:00:42,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-25 00:00:42,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-25 00:00:42,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-25 00:00:42,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-25 00:00:42,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-25 00:00:42,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-25 00:00:42,601 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-10-25 00:00:42,602 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2024-10-25 00:00:42,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:00:42,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:00:42,604 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 00:00:42,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-25 00:00:42,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-25 00:00:42,621 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-25 00:00:42,621 INFO L474 LassoAnalysis]: Proved termination. [2024-10-25 00:00:42,621 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~s~0#1.offset, v_rep(select #length ULTIMATE.start_cstrlen_~s~0#1.base)_1) = -1*ULTIMATE.start_cstrlen_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrlen_~s~0#1.base)_1 Supporting invariants [] [2024-10-25 00:00:42,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-25 00:00:42,647 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-10-25 00:00:42,649 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-10-25 00:00:42,650 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-25 00:00:42,650 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-25 00:00:42,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:00:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:00:42,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-25 00:00:42,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 00:00:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:00:42,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-25 00:00:42,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-25 00:00:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:00:42,737 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-25 00:00:42,737 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:42,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 4 states. [2024-10-25 00:00:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-25 00:00:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 00:00:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-10-25 00:00:42,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-25 00:00:42,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:42,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 3 letters. [2024-10-25 00:00:42,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:42,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 6 letters. [2024-10-25 00:00:42,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-25 00:00:42,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-10-25 00:00:42,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-25 00:00:42,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-10-25 00:00:42,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-25 00:00:42,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-25 00:00:42,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-25 00:00:42,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:00:42,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-25 00:00:42,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-25 00:00:42,771 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-25 00:00:42,771 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-25 00:00:42,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-25 00:00:42,771 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-25 00:00:42,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-25 00:00:42,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.10 12:00:42 BoogieIcfgContainer [2024-10-25 00:00:42,779 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-25 00:00:42,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-25 00:00:42,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-25 00:00:42,781 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-25 00:00:42,781 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:00:38" (3/4) ... [2024-10-25 00:00:42,783 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-25 00:00:42,784 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-25 00:00:42,785 INFO L158 Benchmark]: Toolchain (without parser) took 4752.83ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 99.4MB in the beginning and 66.9MB in the end (delta: 32.5MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2024-10-25 00:00:42,786 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:00:42,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.86ms. Allocated memory is still 155.2MB. Free memory was 99.4MB in the beginning and 81.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-25 00:00:42,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:00:42,787 INFO L158 Benchmark]: Boogie Preprocessor took 58.27ms. Allocated memory is still 155.2MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 00:00:42,790 INFO L158 Benchmark]: RCFGBuilder took 311.69ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 65.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-25 00:00:42,791 INFO L158 Benchmark]: BuchiAutomizer took 3799.25ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 65.9MB in the beginning and 66.9MB in the end (delta: -1.1MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-10-25 00:00:42,791 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 195.0MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:00:42,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.86ms. Allocated memory is still 155.2MB. Free memory was 99.4MB in the beginning and 81.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.27ms. Allocated memory is still 155.2MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.69ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 65.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3799.25ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 65.9MB in the beginning and 66.9MB in the end (delta: -1.1MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 195.0MB. Free memory is still 66.9MB. 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: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] * 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 (length1 + ((long long) -1 * i)) and consists of 4 locations. One deterministic module has affine ranking function null and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. 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, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 21 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital93 mio100 ax119 hnf100 lsp82 ukn86 mio100 lsp47 div138 bol100 ite100 ukn100 eq169 hnf91 smp85 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 2 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-25 00:00:42,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-25 00:00:43,032 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