./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/rec_strlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:25:37,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:25:37,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:25:37,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:25:37,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:25:37,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:25:37,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:25:37,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:25:37,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:25:37,630 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:25:37,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:25:37,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:25:37,632 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:25:37,632 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:25:37,633 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:25:37,633 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:25:37,633 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:25:37,634 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:25:37,634 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:25:37,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:25:37,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:25:37,635 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:25:37,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:25:37,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:25:37,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:25:37,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:25:37,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:25:37,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:25:37,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:25:37,638 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:25:37,638 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:25:37,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:25:37,638 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:25:37,639 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:25:37,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:25:37,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:25:37,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:25:37,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:25:37,641 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:25:37,641 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 [2024-10-12 00:25:37,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:25:37,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:25:37,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:25:37,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:25:37,990 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:25:37,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2024-10-12 00:25:39,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:25:39,837 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:25:39,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2024-10-12 00:25:39,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4bab45f42/315150e9980d4b238fd0d991ffa2f4dc/FLAG7dd3f47b6 [2024-10-12 00:25:39,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4bab45f42/315150e9980d4b238fd0d991ffa2f4dc [2024-10-12 00:25:39,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:25:39,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:25:39,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:25:39,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:25:39,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:25:39,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:25:39" (1/1) ... [2024-10-12 00:25:39,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46313394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:39, skipping insertion in model container [2024-10-12 00:25:39,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:25:39" (1/1) ... [2024-10-12 00:25:39,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:25:40,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:25:40,299 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:25:40,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:25:40,369 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:25:40,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40 WrapperNode [2024-10-12 00:25:40,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:25:40,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:25:40,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:25:40,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:25:40,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,410 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-10-12 00:25:40,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:25:40,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:25:40,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:25:40,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:25:40,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,438 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]. [2024-10-12 00:25:40,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:25:40,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:25:40,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:25:40,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:25:40,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (1/1) ... [2024-10-12 00:25:40,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:40,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:40,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:40,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:25:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:25:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:25:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 00:25:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 00:25:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2024-10-12 00:25:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2024-10-12 00:25:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:25:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:25:40,656 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:25:40,664 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:25:40,841 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-12 00:25:40,841 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:25:40,860 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:25:40,860 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 00:25:40,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:25:40 BoogieIcfgContainer [2024-10-12 00:25:40,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:25:40,864 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:25:40,865 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:25:40,869 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:25:40,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:25:40,872 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:25:39" (1/3) ... [2024-10-12 00:25:40,873 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5074dc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:25:40, skipping insertion in model container [2024-10-12 00:25:40,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:25:40,874 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:25:40" (2/3) ... [2024-10-12 00:25:40,874 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5074dc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:25:40, skipping insertion in model container [2024-10-12 00:25:40,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:25:40,876 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:25:40" (3/3) ... [2024-10-12 00:25:40,877 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-1.i [2024-10-12 00:25:40,948 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:25:40,948 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:25:40,949 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:25:40,949 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:25:40,949 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:25:40,949 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:25:40,949 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:25:40,949 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:25:40,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 00:25:40,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-10-12 00:25:40,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:25:40,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:25:40,977 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:25:40,977 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:25:40,977 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:25:40,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 00:25:40,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-10-12 00:25:40,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:25:40,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:25:40,980 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:25:40,980 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:25:40,986 INFO L745 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet6#1, main_#t~post7#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet4#1;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 17#L522true assume !(main_~length1~0#1 < 1); 10#L522-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 8#L527-3true [2024-10-12 00:25:40,986 INFO L747 eck$LassoCheckResult]: Loop: 8#L527-3true 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; 11#L527-2true main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 8#L527-3true [2024-10-12 00:25:40,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2024-10-12 00:25:40,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:40,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936670887] [2024-10-12 00:25:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:41,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:41,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:41,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2024-10-12 00:25:41,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:41,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080583597] [2024-10-12 00:25:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:41,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:41,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2024-10-12 00:25:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:41,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348889467] [2024-10-12 00:25:41,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:41,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:41,515 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:25:41,516 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:25:41,516 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:25:41,516 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:25:41,516 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:25:41,516 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:41,516 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:25:41,516 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:25:41,517 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration1_Lasso [2024-10-12 00:25:41,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:25:41,517 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:25:41,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,552 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:41,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:42,018 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:25:42,023 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:25:42,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:25:42,031 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 [2024-10-12 00:25:42,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:42,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:42,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:42,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:25:42,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:25:42,077 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 [2024-10-12 00:25:42,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:42,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:42,097 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-12 00:25:42,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:25:42,120 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 [2024-10-12 00:25:42,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:42,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:42,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:42,139 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:42,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:25:42,154 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 [2024-10-12 00:25:42,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:42,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:42,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:42,168 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:42,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:25:42,188 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 [2024-10-12 00:25:42,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:42,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:42,214 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:25:42,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:25:42,236 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 [2024-10-12 00:25:42,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:42,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:42,262 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:42,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:25:42,285 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 [2024-10-12 00:25:42,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:42,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:42,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:42,301 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:25:42,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:25:42,323 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 [2024-10-12 00:25:42,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:42,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:42,352 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:42,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:42,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:25:42,374 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 [2024-10-12 00:25:42,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:42,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:42,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:42,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:42,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:42,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:42,412 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:25:42,448 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-10-12 00:25:42,448 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2024-10-12 00:25:42,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:42,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:42,473 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:42,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:25:42,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:25:42,494 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-12 00:25:42,495 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:25:42,496 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 [] [2024-10-12 00:25:42,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:25:42,584 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-10-12 00:25:42,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-12 00:25:42,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:25:42,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:25:42,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:25:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:25:42,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:25:42,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:25:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:25:42,775 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 [2024-10-12 00:25:42,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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) [2024-10-12 00:25:42,838 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). 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 32 states and 40 transitions. Complement of second has 7 states. [2024-10-12 00:25:42,841 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 [2024-10-12 00:25:42,847 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) [2024-10-12 00:25:42,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-12 00:25:42,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-12 00:25:42,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:42,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-12 00:25:42,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:42,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-12 00:25:42,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:42,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2024-10-12 00:25:42,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:25:42,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2024-10-12 00:25:42,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-12 00:25:42,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-12 00:25:42,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-10-12 00:25:42,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:25:42,868 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:25:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-10-12 00:25:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-12 00:25:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:25:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-12 00:25:42,895 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:25:42,896 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:25:42,896 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:25:42,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-12 00:25:42,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:25:42,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:25:42,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:25:42,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:25:42,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:25:42,899 INFO L745 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 113#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; 115#L522 assume !(main_~length1~0#1 < 1); 105#L522-2 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; 106#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 114#L527-4 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); 111#L533 call main_#t~ret8#1 := strlen_rec(main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset);< 116#$Ultimate##0 [2024-10-12 00:25:42,899 INFO L747 eck$LassoCheckResult]: Loop: 116#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int#0(~p.base, ~p.offset, 1); 109#L515 assume !(0 == #t~mem2);havoc #t~mem2; 110#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 116#$Ultimate##0 [2024-10-12 00:25:42,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1806816568, now seen corresponding path program 1 times [2024-10-12 00:25:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179072267] [2024-10-12 00:25:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:42,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:42,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:42,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:42,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:42,950 INFO L85 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 1 times [2024-10-12 00:25:42,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:42,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636495618] [2024-10-12 00:25:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:42,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:42,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:42,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:42,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1952714549, now seen corresponding path program 1 times [2024-10-12 00:25:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274350423] [2024-10-12 00:25:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:25:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:25:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:25:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274350423] [2024-10-12 00:25:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274350423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:25:43,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:25:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 00:25:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755907927] [2024-10-12 00:25:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:25:43,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:25:43,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 00:25:43,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:25:43,496 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:25:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:25:43,556 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2024-10-12 00:25:43,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2024-10-12 00:25:43,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:25:43,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 15 transitions. [2024-10-12 00:25:43,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-12 00:25:43,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-12 00:25:43,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2024-10-12 00:25:43,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:25:43,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-12 00:25:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2024-10-12 00:25:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-12 00:25:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:25:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-12 00:25:43,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-12 00:25:43,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 00:25:43,564 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-12 00:25:43,565 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:25:43,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-10-12 00:25:43,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-12 00:25:43,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:25:43,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:25:43,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:25:43,567 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:25:43,568 INFO L745 eck$LassoCheckResult]: Stem: 156#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 157#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; 159#L522 assume !(main_~length1~0#1 < 1); 149#L522-2 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; 150#L527-3 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; 151#L527-2 main_#t~post7#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 152#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 158#L527-4 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); 155#L533 call main_#t~ret8#1 := strlen_rec(main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset);< 160#$Ultimate##0 [2024-10-12 00:25:43,568 INFO L747 eck$LassoCheckResult]: Loop: 160#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int#0(~p.base, ~p.offset, 1); 153#L515 assume !(0 == #t~mem2);havoc #t~mem2; 154#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 160#$Ultimate##0 [2024-10-12 00:25:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1185641750, now seen corresponding path program 1 times [2024-10-12 00:25:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:43,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875811881] [2024-10-12 00:25:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:43,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 2 times [2024-10-12 00:25:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354841299] [2024-10-12 00:25:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:43,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash -357639123, now seen corresponding path program 1 times [2024-10-12 00:25:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:25:43,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347601602] [2024-10-12 00:25:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:25:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:25:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:25:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:25:43,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:25:44,036 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:25:44,037 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:25:44,037 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:25:44,037 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:25:44,037 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:25:44,037 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,037 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:25:44,038 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:25:44,038 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration3_Lasso [2024-10-12 00:25:44,038 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:25:44,038 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:25:44,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:25:44,444 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:25:44,445 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:25:44,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,450 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:25:44,453 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 [2024-10-12 00:25:44,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,477 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:44,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,498 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:25:44,500 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 [2024-10-12 00:25:44,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,516 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-12 00:25:44,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,536 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:25:44,539 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 [2024-10-12 00:25:44,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,558 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-12 00:25:44,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,578 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:25:44,581 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 [2024-10-12 00:25:44,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,598 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:25:44,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,614 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:25:44,616 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 [2024-10-12 00:25:44,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,629 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-12 00:25:44,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,648 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-12 00:25:44,651 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 [2024-10-12 00:25:44,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:44,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:44,671 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-12 00:25:44,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,691 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:25:44,694 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 [2024-10-12 00:25:44,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,714 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:44,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,733 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:25:44,737 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 [2024-10-12 00:25:44,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:25:44,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:25:44,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:25:44,753 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-12 00:25:44,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,773 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:25:44,777 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 [2024-10-12 00:25:44,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:44,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:44,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:25:44,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-12 00:25:44,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,819 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-12 00:25:44,821 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 [2024-10-12 00:25:44,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:25:44,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:25:44,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:25:44,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:25:44,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:25:44,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:25:44,846 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:25:44,863 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2024-10-12 00:25:44,863 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-12 00:25:44,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:25:44,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:25:44,866 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:25:44,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:25:44,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:25:44,883 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-12 00:25:44,883 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:25:44,883 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(strlen_rec_#in~p.offset, v_rep(select #length strlen_rec_#in~p.base)_1) = -1*strlen_rec_#in~p.offset + 1*v_rep(select #length strlen_rec_#in~p.base)_1 Supporting invariants [] [2024-10-12 00:25:44,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:44,909 INFO L156 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2024-10-12 00:25:44,911 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~p!offset [2024-10-12 00:25:44,912 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-12 00:25:44,913 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-12 00:25:44,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:25:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:25:44,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:25:44,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:25:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:25:44,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-12 00:25:44,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:25:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:25:45,027 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 [2024-10-12 00:25:45,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:25:45,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 21 transitions. Complement of second has 7 states. [2024-10-12 00:25:45,058 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 [2024-10-12 00:25:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:25:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-10-12 00:25:45,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-12 00:25:45,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:45,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2024-10-12 00:25:45,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:45,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-12 00:25:45,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:25:45,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2024-10-12 00:25:45,062 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:25:45,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2024-10-12 00:25:45,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:25:45,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:25:45,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:25:45,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:25:45,063 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:25:45,063 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:25:45,063 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:25:45,063 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:25:45,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:25:45,064 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:25:45,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:25:45,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:25:45 BoogieIcfgContainer [2024-10-12 00:25:45,075 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:25:45,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:25:45,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:25:45,076 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:25:45,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:25:40" (3/4) ... [2024-10-12 00:25:45,079 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:25:45,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:25:45,081 INFO L158 Benchmark]: Toolchain (without parser) took 5187.95ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 129.4MB in the beginning and 141.3MB in the end (delta: -12.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,081 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:25:45,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.49ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 111.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.99ms. Allocated memory is still 180.4MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,084 INFO L158 Benchmark]: Boogie Preprocessor took 48.10ms. Allocated memory is still 180.4MB. Free memory was 109.3MB in the beginning and 107.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,084 INFO L158 Benchmark]: RCFGBuilder took 400.92ms. Allocated memory is still 180.4MB. Free memory was 107.2MB in the beginning and 144.8MB in the end (delta: -37.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,084 INFO L158 Benchmark]: BuchiAutomizer took 4211.42ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 144.8MB in the beginning and 142.4MB in the end (delta: 2.4MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2024-10-12 00:25:45,085 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 234.9MB. Free memory was 142.4MB in the beginning and 141.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:25:45,090 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.49ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 111.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.99ms. Allocated memory is still 180.4MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.10ms. Allocated memory is still 180.4MB. Free memory was 109.3MB in the beginning and 107.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.92ms. Allocated memory is still 180.4MB. Free memory was 107.2MB in the beginning and 144.8MB in the end (delta: -37.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4211.42ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 144.8MB in the beginning and 142.4MB in the end (delta: 2.4MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 234.9MB. Free memory was 142.4MB in the beginning and 141.3MB in the end (delta: 1.0MB). 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: #in~p!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 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [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, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 24 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital88 mio100 ax120 hnf100 lsp83 ukn77 mio100 lsp47 div138 bol100 ite100 ukn100 eq167 hnf91 smp85 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:25:45,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-12 00:25:45,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE