./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:36:54,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:36:54,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 02:36:54,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:36:54,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:36:54,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:36:54,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:36:54,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:36:54,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:36:54,292 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:36:54,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:36:54,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:36:54,294 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:36:54,294 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:36:54,295 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:36:54,295 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:36:54,306 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:36:54,307 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:36:54,307 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:36:54,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:36:54,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:36:54,309 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:36:54,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:36:54,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:36:54,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:36:54,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:36:54,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:36:54,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:36:54,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:36:54,312 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:36:54,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:36:54,312 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:36:54,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:36:54,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:36:54,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:36:54,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:36:54,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:36:54,314 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:36:54,314 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_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 [2023-11-29 02:36:54,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:36:54,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:36:54,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:36:54,546 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:36:54,546 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:36:54,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2023-11-29 02:36:57,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:36:57,491 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:36:57,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2023-11-29 02:36:57,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/data/77848a9ce/489bf0ff487d4f449246d9d43fe3340e/FLAG699d58f74 [2023-11-29 02:36:57,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/data/77848a9ce/489bf0ff487d4f449246d9d43fe3340e [2023-11-29 02:36:57,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:36:57,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:36:57,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:36:57,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:36:57,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:36:57,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbd4862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57, skipping insertion in model container [2023-11-29 02:36:57,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:36:57,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:36:57,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:36:57,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:36:57,759 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:36:57,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57 WrapperNode [2023-11-29 02:36:57,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:36:57,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:36:57,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:36:57,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:36:57,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,797 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 11, calls inlined = 18, statements flattened = 131 [2023-11-29 02:36:57,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:36:57,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:36:57,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:36:57,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:36:57,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,824 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:36:57,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:36:57,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:36:57,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:36:57,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:36:57,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (1/1) ... [2023-11-29 02:36:57,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:57,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:57,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:57,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:36:57,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:36:57,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:36:57,969 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:36:57,972 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:36:58,117 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:36:58,126 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:36:58,127 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:36:58,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:36:58 BoogieIcfgContainer [2023-11-29 02:36:58,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:36:58,130 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:36:58,130 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:36:58,133 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:36:58,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:36:58,134 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:36:57" (1/3) ... [2023-11-29 02:36:58,134 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc29bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:36:58, skipping insertion in model container [2023-11-29 02:36:58,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:36:58,135 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:36:57" (2/3) ... [2023-11-29 02:36:58,135 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc29bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:36:58, skipping insertion in model container [2023-11-29 02:36:58,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:36:58,135 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:36:58" (3/3) ... [2023-11-29 02:36:58,137 INFO L332 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2023-11-29 02:36:58,185 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:36:58,185 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:36:58,186 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:36:58,186 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:36:58,186 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:36:58,186 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:36:58,186 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:36:58,187 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:36:58,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 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) [2023-11-29 02:36:58,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2023-11-29 02:36:58,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:36:58,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:36:58,213 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:36:58,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:36:58,213 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:36:58,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 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) [2023-11-29 02:36:58,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2023-11-29 02:36:58,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:36:58,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:36:58,220 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:36:58,220 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:36:58,226 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post4#1, main_#t~post5#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post7#1, main_~in~0#1, main_~inlen~0#1, main_~bufferlen~0#1, main_~buf~0#1, main_~buflim~0#1;havoc main_~in~0#1;havoc main_#t~nondet1#1;main_~inlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~bufferlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_~buf~0#1;havoc main_~buflim~0#1; 6#L31true assume main_~bufferlen~0#1 > 1; 55#L31-1true assume main_~inlen~0#1 > 0; 16#L32true assume main_~bufferlen~0#1 < main_~inlen~0#1; 15#L33true main_~buf~0#1 := 0;main_~in~0#1 := 0;main_~buflim~0#1 := main_~bufferlen~0#1 - 2; 25#L37-3true [2023-11-29 02:36:58,227 INFO L750 eck$LassoCheckResult]: Loop: 25#L37-3true havoc main_#t~nondet3#1; 46#L37-1true assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; 42#L39true assume !(main_~buf~0#1 == main_~buflim~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~buf~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 20#L18true assume !(0 == __VERIFIER_assert_~cond#1); 37#L18-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~buf~0#1 < main_~bufferlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 39#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 3#L18-5true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~buf~0#1;main_~buf~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 32#L44true main_#t~post5#1 := main_~in~0#1;main_~in~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~in~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 38#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 34#L18-8true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~in~0#1 < main_~inlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 49#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 21#L18-11true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 25#L37-3true [2023-11-29 02:36:58,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2023-11-29 02:36:58,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:36:58,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572021177] [2023-11-29 02:36:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:36:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:36:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:36:58,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash -480041750, now seen corresponding path program 1 times [2023-11-29 02:36:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:36:58,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747516443] [2023-11-29 02:36:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:36:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:36:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:36:58,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash 949948022, now seen corresponding path program 1 times [2023-11-29 02:36:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:36:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626453013] [2023-11-29 02:36:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:36:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:36:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:36:58,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:36:58,675 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:36:58,676 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:36:58,676 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:36:58,676 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:36:58,676 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:36:58,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:36:58,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:36:58,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2023-11-29 02:36:58,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:36:58,677 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:36:58,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:58,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:36:58,818 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:36:58,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 02:36:58,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:36:58,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:58,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:36:58,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:36:58,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:36:58,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 02:36:58,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:36:58,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:58,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:36:58,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:36:58,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 02:36:58,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 02:36:58,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:36:58,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:58,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:36:58,889 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:36:58,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 02:36:58,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 02:36:58,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:36:58,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:58,908 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:36:58,908 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:36:58,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-29 02:36:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 02:36:58,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:36:58,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:58,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-29 02:36:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:58,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:58,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 02:36:58,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:36:58,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:36:59,022 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:36:59,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 02:36:59,026 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:36:59,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:36:59,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:36:59,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:36:59,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:36:59,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:36:59,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:36:59,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2023-11-29 02:36:59,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:36:59,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:36:59,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:36:59,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:36:59,138 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:36:59,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,141 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 02:36:59,143 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 [2023-11-29 02:36:59,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:36:59,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:36:59,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:36:59,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:36:59,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:36:59,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:36:59,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:36:59,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:36:59,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 02:36:59,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,170 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 02:36:59,173 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 [2023-11-29 02:36:59,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:36:59,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:36:59,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:36:59,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:36:59,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:36:59,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:36:59,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:36:59,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:36:59,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 02:36:59,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,191 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 02:36:59,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:36:59,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:36:59,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:36:59,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:36:59,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:36:59,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:36:59,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:36:59,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:36:59,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:36:59,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 02:36:59,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,212 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 02:36:59,215 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 [2023-11-29 02:36:59,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:36:59,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:36:59,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:36:59,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:36:59,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:36:59,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:36:59,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:36:59,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:36:59,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 02:36:59,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,234 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 02:36:59,237 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 [2023-11-29 02:36:59,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:36:59,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:36:59,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:36:59,248 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-29 02:36:59,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:36:59,251 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-29 02:36:59,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:36:59,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:36:59,263 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-29 02:36:59,263 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:36:59,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:36:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:59,286 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:36:59,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 02:36:59,288 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:36:59,288 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:36:59,289 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:36:59,289 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~bufferlen~0#1, ULTIMATE.start_main_~buf~0#1) = 1*ULTIMATE.start_main_~bufferlen~0#1 - 1*ULTIMATE.start_main_~buf~0#1 Supporting invariants [] [2023-11-29 02:36:59,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-29 02:36:59,296 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:36:59,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 02:36:59,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:59,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:36:59,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:36:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:59,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:36:59,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:36:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:59,549 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-29 02:36:59,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 55 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 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 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2023-11-29 02:36:59,697 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 55 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 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 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 138 states and 180 transitions. Complement of second has 10 states. [2023-11-29 02:36:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-29 02:36:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2023-11-29 02:36:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2023-11-29 02:36:59,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 138 transitions. Stem has 6 letters. Loop has 12 letters. [2023-11-29 02:36:59,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:36:59,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 138 transitions. Stem has 18 letters. Loop has 12 letters. [2023-11-29 02:36:59,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:36:59,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 138 transitions. Stem has 6 letters. Loop has 24 letters. [2023-11-29 02:36:59,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:36:59,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 180 transitions. [2023-11-29 02:36:59,716 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:36:59,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2023-11-29 02:36:59,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:36:59,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:36:59,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:36:59,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:36:59,720 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:36:59,720 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:36:59,720 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:36:59,720 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 02:36:59,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:36:59,720 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:36:59,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 02:36:59,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:36:59 BoogieIcfgContainer [2023-11-29 02:36:59,727 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:36:59,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:36:59,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:36:59,727 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:36:59,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:36:58" (3/4) ... [2023-11-29 02:36:59,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:36:59,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:36:59,731 INFO L158 Benchmark]: Toolchain (without parser) took 2213.19ms. Allocated memory is still 169.9MB. Free memory was 141.2MB in the beginning and 110.5MB in the end (delta: 30.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,731 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:36:59,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.97ms. Allocated memory is still 169.9MB. Free memory was 141.1MB in the beginning and 130.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.78ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 128.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,733 INFO L158 Benchmark]: Boogie Preprocessor took 38.95ms. Allocated memory is still 169.9MB. Free memory was 128.5MB in the beginning and 126.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,733 INFO L158 Benchmark]: RCFGBuilder took 291.32ms. Allocated memory is still 169.9MB. Free memory was 126.5MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,734 INFO L158 Benchmark]: BuchiAutomizer took 1596.97ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 110.5MB in the end (delta: 4.0MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2023-11-29 02:36:59,734 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 169.9MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:36:59,738 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.97ms. Allocated memory is still 169.9MB. Free memory was 141.1MB in the beginning and 130.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.78ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 128.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.95ms. Allocated memory is still 169.9MB. Free memory was 128.5MB in the beginning and 126.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.32ms. Allocated memory is still 169.9MB. Free memory was 126.5MB in the beginning and 114.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1596.97ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 110.5MB in the end (delta: 4.0MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 169.9MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. * 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 (bufferlen + (-1 * buf)) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 38 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf96 smp100 dnf164 smp100 tf104 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 02:36:59,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4f63d3-e822-4b79-84bc-aed0db92ddbc/bin/uautomizer-verify-BQ2R08f2Ya/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