./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1 --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 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:19:10,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:19:10,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-01 13:19:10,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:19:10,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:19:10,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:19:10,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:19:10,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:19:10,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:19:10,819 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:19:10,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:19:10,820 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-01 13:19:10,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:19:10,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:19:10,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:19:10,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:19:10,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:19:10,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-01 13:19:10,822 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-01 13:19:10,822 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1 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 -> 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 [2024-12-01 13:19:11,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:19:11,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:19:11,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:19:11,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:19:11,067 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:19:11,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2024-12-01 13:19:13,729 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/data/3f5350408/0c7fb52e256748e3b5ca55fa1fcaa3fa/FLAG04dc55ea3 [2024-12-01 13:19:13,946 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:19:13,947 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2024-12-01 13:19:13,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/data/3f5350408/0c7fb52e256748e3b5ca55fa1fcaa3fa/FLAG04dc55ea3 [2024-12-01 13:19:13,969 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/data/3f5350408/0c7fb52e256748e3b5ca55fa1fcaa3fa [2024-12-01 13:19:13,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:19:13,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:19:13,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:19:13,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:19:13,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:19:13,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:19:13" (1/1) ... [2024-12-01 13:19:13,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da8d5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:13, skipping insertion in model container [2024-12-01 13:19:13,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:19:13" (1/1) ... [2024-12-01 13:19:14,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:19:14,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:19:14,220 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:19:14,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:19:14,283 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:19:14,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14 WrapperNode [2024-12-01 13:19:14,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:19:14,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:19:14,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:19:14,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:19:14,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,312 INFO L138 Inliner]: procedures = 152, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-12-01 13:19:14,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:19:14,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:19:14,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:19:14,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:19:14,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,331 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-12-01 13:19:14,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:19:14,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:19:14,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:19:14,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:19:14,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (1/1) ... [2024-12-01 13:19:14,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:14,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:14,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:14,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-01 13:19:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 13:19:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 13:19:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-01 13:19:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-01 13:19:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:19:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:19:14,447 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:19:14,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:19:14,546 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-01 13:19:14,546 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:19:14,555 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:19:14,555 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 13:19:14,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:14 BoogieIcfgContainer [2024-12-01 13:19:14,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:19:14,556 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-01 13:19:14,556 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-01 13:19:14,562 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-01 13:19:14,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-01 13:19:14,563 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 01:19:13" (1/3) ... [2024-12-01 13:19:14,564 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cc3de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 01:19:14, skipping insertion in model container [2024-12-01 13:19:14,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-01 13:19:14,564 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:14" (2/3) ... [2024-12-01 13:19:14,564 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cc3de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 01:19:14, skipping insertion in model container [2024-12-01 13:19:14,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-01 13:19:14,564 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:14" (3/3) ... [2024-12-01 13:19:14,565 INFO L363 chiAutomizerObserver]: Analyzing ICFG cstrlen_reverse_alloca.i [2024-12-01 13:19:14,612 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-01 13:19:14,612 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-01 13:19:14,612 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-01 13:19:14,612 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-01 13:19:14,612 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-01 13:19:14,613 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-01 13:19:14,613 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-01 13:19:14,613 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-01 13:19:14,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:14,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-01 13:19:14,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-01 13:19:14,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-01 13:19:14,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-01 13:19:14,638 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-01 13:19:14,638 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-01 13:19:14,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:14,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-01 13:19:14,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-01 13:19:14,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-01 13:19:14,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-01 13:19:14,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-01 13:19:14,647 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet207#1, main_#t~malloc208#1.base, main_#t~malloc208#1.offset, main_#t~ret209#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc main_#t~nondet207#1;main_~length1~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1;" "assume !(main_~length1~0#1 < 1);" "call main_#t~malloc208#1.base, main_#t~malloc208#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc208#1.base, main_#t~malloc208#1.offset;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~mem205#1, cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset;" [2024-12-01 13:19:14,647 INFO L749 eck$LassoCheckResult]: Loop: "call cstrlen_#t~mem205#1 := read~int#0(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1);" "assume 0 != cstrlen_#t~mem205#1;havoc cstrlen_#t~mem205#1;" "cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset - 1;" [2024-12-01 13:19:14,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2024-12-01 13:19:14,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-01 13:19:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969103939] [2024-12-01 13:19:14,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:14,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,750 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:19:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-01 13:19:14,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 42800, now seen corresponding path program 1 times [2024-12-01 13:19:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-01 13:19:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541089352] [2024-12-01 13:19:14,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,791 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:19:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-01 13:19:14,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1806814412, now seen corresponding path program 1 times [2024-12-01 13:19:14,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-01 13:19:14,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928787782] [2024-12-01 13:19:14,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:14,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,828 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:19:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:19:14,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-01 13:19:15,206 INFO L204 LassoAnalysis]: Preferences: [2024-12-01 13:19:15,206 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-01 13:19:15,207 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-01 13:19:15,207 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-01 13:19:15,207 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-01 13:19:15,207 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:15,207 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-01 13:19:15,207 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-01 13:19:15,208 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrlen_reverse_alloca.i_Iteration1_Lasso [2024-12-01 13:19:15,208 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-01 13:19:15,208 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-01 13:19:15,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-01 13:19:15,684 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-01 13:19:15,688 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-01 13:19:15,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:15,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:15,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:15,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-01 13:19:15,694 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 [2024-12-01 13:19:15,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-01 13:19:15,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-01 13:19:15,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-01 13:19:15,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-01 13:19:15,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-01 13:19:15,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-01 13:19:15,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-01 13:19:15,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-01 13:19:15,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-01 13:19:15,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:15,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:15,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:15,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-01 13:19:15,728 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 [2024-12-01 13:19:15,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-01 13:19:15,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-01 13:19:15,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-01 13:19:15,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-01 13:19:15,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-01 13:19:15,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-01 13:19:15,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-01 13:19:15,745 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-01 13:19:15,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-01 13:19:15,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:15,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:15,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:15,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-01 13:19:15,754 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 [2024-12-01 13:19:15,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-01 13:19:15,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-01 13:19:15,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-01 13:19:15,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-01 13:19:15,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-01 13:19:15,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-01 13:19:15,787 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-01 13:19:15,801 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-01 13:19:15,803 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-12-01 13:19:15,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-01 13:19:15,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:15,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:15,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-01 13:19:15,809 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-01 13:19:15,821 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-12-01 13:19:15,821 INFO L474 LassoAnalysis]: Proved termination. [2024-12-01 13:19:15,822 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0#1.offset) = 2*ULTIMATE.start_cstrlen_~p~0#1.offset + 1 Supporting invariants [] [2024-12-01 13:19:15,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-01 13:19:15,838 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-12-01 13:19:15,845 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!offset [2024-12-01 13:19:15,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:15,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 13:19:15,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:15,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:19:15,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:19:15,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-01 13:19:15,974 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 [2024-12-01 13:19:15,976 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-01 13:19:16,015 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 21 states and 24 transitions. Complement of second has 6 states. [2024-12-01 13:19:16,017 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 [2024-12-01 13:19:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-01 13:19:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-12-01 13:19:16,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 3 letters. [2024-12-01 13:19:16,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-01 13:19:16,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2024-12-01 13:19:16,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-01 13:19:16,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 6 letters. [2024-12-01 13:19:16,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-01 13:19:16,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2024-12-01 13:19:16,030 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-01 13:19:16,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-12-01 13:19:16,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-01 13:19:16,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-01 13:19:16,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-01 13:19:16,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-01 13:19:16,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 13:19:16,034 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 13:19:16,034 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 13:19:16,034 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-01 13:19:16,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-01 13:19:16,034 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-01 13:19:16,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-01 13:19:16,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 01:19:16 BoogieIcfgContainer [2024-12-01 13:19:16,042 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-01 13:19:16,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:19:16,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:19:16,043 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:19:16,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:14" (3/4) ... [2024-12-01 13:19:16,045 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 13:19:16,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:19:16,047 INFO L158 Benchmark]: Toolchain (without parser) took 2074.13ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 83.8MB in the end (delta: 8.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-12-01 13:19:16,047 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:19:16,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.57ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:19:16,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.24ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:19:16,048 INFO L158 Benchmark]: Boogie Preprocessor took 26.27ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:19:16,048 INFO L158 Benchmark]: RCFGBuilder took 216.19ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 61.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:19:16,049 INFO L158 Benchmark]: BuchiAutomizer took 1485.79ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 83.9MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:19:16,049 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:19:16,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.57ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.24ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.27ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 216.19ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 61.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1485.79ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 83.9MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 21.1kB). 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: ~p~0!offset * 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 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital95 mio100 ax100 hnf100 lsp100 ukn96 mio100 lsp47 div179 bol100 ite100 ukn100 eq158 hnf93 smp65 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 70ms VariablesStem: 6 VariablesLoop: 5 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! [2024-12-01 13:19:16,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27702817-d5cb-43a7-b63d-00b6c404e8c8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE