./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ba2b2304f59c42f24b0ea6cefca15c75c2792e09691962ca65c937e0583a810e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:15:15,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:15,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:15:15,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:15,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:15,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:15,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:15,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:15,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:15:15,830 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:15:15,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:15,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:15,832 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:15,834 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:15:15,835 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:15:15,835 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:15:15,835 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:15:15,837 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:15:15,838 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:15:15,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:15,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:15:15,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:15,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:15,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:15:15,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:15:15,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:15:15,841 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:15:15,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:15,842 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:15:15,843 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:15,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:15,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:15,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:15,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:15,846 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:15:15,846 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba2b2304f59c42f24b0ea6cefca15c75c2792e09691962ca65c937e0583a810e [2023-11-21 22:15:16,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:16,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:16,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:16,220 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:16,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:16,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2023-11-21 22:15:19,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:19,548 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:19,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2023-11-21 22:15:19,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/data/e95f88f9d/6ee9b126f6b645db8305d50a13818c3b/FLAG0f0df6f67 [2023-11-21 22:15:19,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/data/e95f88f9d/6ee9b126f6b645db8305d50a13818c3b [2023-11-21 22:15:19,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:19,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:19,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:19,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:19,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:19,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a52600d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19, skipping insertion in model container [2023-11-21 22:15:19,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,604 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:19,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:19,773 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:19,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:19,806 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:19,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19 WrapperNode [2023-11-21 22:15:19,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:19,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:19,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:19,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:19,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,846 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2023-11-21 22:15:19,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:19,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:19,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:19,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:19,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,858 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,868 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:15:19,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:19,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:19,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:19,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:19,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (1/1) ... [2023-11-21 22:15:19,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:19,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:19,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:19,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:15:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:15:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:19,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:15:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2023-11-21 22:15:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2023-11-21 22:15:20,029 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:20,031 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:20,162 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:15:20,171 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:15:20,171 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:15:20,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:20 BoogieIcfgContainer [2023-11-21 22:15:20,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:15:20,174 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:15:20,175 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:15:20,179 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:15:20,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:15:20,180 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:15:19" (1/3) ... [2023-11-21 22:15:20,194 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cfa2661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:15:20, skipping insertion in model container [2023-11-21 22:15:20,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:15:20,195 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:19" (2/3) ... [2023-11-21 22:15:20,195 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cfa2661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:15:20, skipping insertion in model container [2023-11-21 22:15:20,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:15:20,196 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:20" (3/3) ... [2023-11-21 22:15:20,197 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc.i [2023-11-21 22:15:20,264 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:15:20,264 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:15:20,264 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:15:20,264 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:15:20,265 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:15:20,265 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:15:20,265 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:15:20,265 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:15:20,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-11-21 22:15:20,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:15:20,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:15:20,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:15:20,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:15:20,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:15:20,294 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:15:20,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-11-21 22:15:20,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:15:20,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:15:20,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:15:20,297 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:15:20,297 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:15:20,304 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1.base, main_#t~ret5#1.offset, main_#t~ret6#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet1#1, build_nondet_String_#t~malloc2#1.base, build_nondet_String_#t~malloc2#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;havoc build_nondet_String_#t~nondet1#1;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet1#1;havoc build_nondet_String_#t~nondet1#1; 16#L11true assume !(build_nondet_String_~length~0#1 < 1); 8#L11-2true call build_nondet_String_#t~malloc2#1.base, build_nondet_String_#t~malloc2#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc2#1.base, build_nondet_String_#t~malloc2#1.offset;havoc build_nondet_String_#t~malloc2#1.base, build_nondet_String_#t~malloc2#1.offset;call write~int#0(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 2#build_nondet_String_returnLabel#1true main_#t~ret5#1.base, main_#t~ret5#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet1#1, build_nondet_String_#t~malloc2#1.base, build_nondet_String_#t~malloc2#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;assume { :end_inline_build_nondet_String } true; 4#L30true call main_#t~ret6#1 := rec_cstrlen(main_#t~ret5#1.base, main_#t~ret5#1.offset);< 15#$Ultimate##0true [2023-11-21 22:15:20,304 INFO L750 eck$LassoCheckResult]: Loop: 15#$Ultimate##0true ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem3 := read~int#0(~s.base, ~s.offset, 1); 6#L22true assume !(0 == #t~mem3);havoc #t~mem3; 13#L25true call #t~ret4 := rec_cstrlen(~s.base, 1 + ~s.offset);< 15#$Ultimate##0true [2023-11-21 22:15:20,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2023-11-21 22:15:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:20,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776414809] [2023-11-21 22:15:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:20,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2023-11-21 22:15:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:20,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977107236] [2023-11-21 22:15:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:20,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:20,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:20,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2023-11-21 22:15:20,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:20,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897126585] [2023-11-21 22:15:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:20,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:20,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:21,359 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:15:21,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:15:21,360 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:15:21,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:15:21,360 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:15:21,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:21,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:15:21,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:15:21,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc.i_Iteration1_Lasso [2023-11-21 22:15:21,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:15:21,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:15:21,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:15:21,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:15:21,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:15:21,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:21,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:21,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:21,800 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 [2023-11-21 22:15:21,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:21,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:21,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:21,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:21,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:21,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:21,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:21,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:15:21,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:21,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:21,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:21,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:21,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:15:21,852 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 [2023-11-21 22:15:21,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:21,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:21,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:21,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:21,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:21,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:21,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:21,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:21,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:21,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:21,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:21,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:21,912 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 [2023-11-21 22:15:21,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:21,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:21,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:21,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:21,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:21,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:21,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:15:21,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:21,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:21,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:21,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:21,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:21,976 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 [2023-11-21 22:15:21,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:21,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:21,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:21,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:21,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:21,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:21,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:21,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:15:22,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:22,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:22,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:22,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:15:22,036 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 [2023-11-21 22:15:22,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:22,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:22,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:22,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:22,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:22,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:22,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:22,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:22,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:22,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:22,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:22,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:15:22,099 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 [2023-11-21 22:15:22,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:22,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:15:22,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:22,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:22,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:22,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:15:22,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:15:22,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:15:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:22,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:22,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:22,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:22,159 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 [2023-11-21 22:15:22,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:15:22,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:15:22,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:15:22,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:15:22,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:15:22,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:15:22,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:15:22,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:15:22,215 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-21 22:15:22,215 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-21 22:15:22,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:15:22,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:22,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:22,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:15:22,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:15:22,270 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:15:22,270 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:15:22,271 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_cstrlen_#in~s.base)_1, rec_cstrlen_#in~s.offset) = 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 - 1*rec_cstrlen_#in~s.offset Supporting invariants [] [2023-11-21 22:15:22,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:22,301 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-11-21 22:15:22,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#in~s!base] could not be translated [2023-11-21 22:15:22,310 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~s!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 22:15:22,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:22,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:15:22,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:22,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:15:22,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:15:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:22,476 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 [2023-11-21 22:15:22,479 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 22:15:22,567 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 31 states and 36 transitions. Complement of second has 8 states. [2023-11-21 22:15:22,569 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 [2023-11-21 22:15:22,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 22:15:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-11-21 22:15:22,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-21 22:15:22,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:15:22,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-21 22:15:22,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:15:22,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2023-11-21 22:15:22,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:15:22,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-21 22:15:22,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:15:22,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2023-11-21 22:15:22,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 22:15:22,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 22:15:22,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 22:15:22,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:22,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:15:22,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:15:22,592 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:15:22,592 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:15:22,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:15:22,592 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:15:22,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 22:15:22,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:15:22 BoogieIcfgContainer [2023-11-21 22:15:22,600 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:15:22,602 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:15:22,602 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:15:22,602 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:15:22,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:20" (3/4) ... [2023-11-21 22:15:22,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:15:22,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:15:22,608 INFO L158 Benchmark]: Toolchain (without parser) took 3033.09ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 78.7MB in the end (delta: 22.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,609 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:15:22,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.04ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 91.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 144.7MB. Free memory was 91.1MB in the beginning and 89.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,618 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 88.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,618 INFO L158 Benchmark]: RCFGBuilder took 293.88ms. Allocated memory is still 144.7MB. Free memory was 87.9MB in the beginning and 78.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,619 INFO L158 Benchmark]: BuchiAutomizer took 2426.01ms. Allocated memory is still 144.7MB. Free memory was 78.4MB in the beginning and 79.8MB in the end (delta: -1.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-11-21 22:15:22,620 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:15:22,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.04ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 91.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 144.7MB. Free memory was 91.1MB in the beginning and 89.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 88.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.88ms. Allocated memory is still 144.7MB. Free memory was 87.9MB in the beginning and 78.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2426.01ms. Allocated memory is still 144.7MB. Free memory was 78.4MB in the beginning and 79.8MB in the end (delta: -1.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 78.7MB 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: ArrayAccessExpression #length[#in~s!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~s!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital107 mio100 ax100 hnf100 lsp100 ukn63 mio100 lsp50 div100 bol100 ite100 ukn100 eq141 hnf93 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 119ms VariablesStem: 3 VariablesLoop: 4 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! [2023-11-21 22:15:22,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:15:22,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_445aced0-ffd4-44d3-ba1d-17dd10f01f7e/bin/uautomizer-verify-bycVGegfSx/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