./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --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 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:53:14,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:53:14,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:53:14,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:53:14,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:53:14,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:53:14,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:53:14,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:53:14,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:53:14,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:53:14,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:53:14,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:53:14,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:53:14,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:53:14,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:53:14,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:53:14,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:53:14,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:53:14,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:53:14,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:53:14,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:53:14,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:53:14,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:53:14,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:53:14,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:53:14,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:53:14,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:53:14,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:53:14,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:53:14,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:53:14,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:53:14,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:53:14,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:53:14,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:53:14,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:53:14,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:53:14,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:53:14,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:53:14,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:53:14,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:53:14,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:53:14,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:53:14,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:53:14,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:53:14,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:53:14,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:53:14,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:53:14,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:53:14,565 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:53:14,565 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:53:14,565 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:53:14,566 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:53:14,567 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:53:14,567 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:53:14,568 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:53:14,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:53:14,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:53:14,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:53:14,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:53:14,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:53:14,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:53:14,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:53:14,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:53:14,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:53:14,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:53:14,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:53:14,571 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:53:14,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:53:14,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:53:14,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:53:14,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:53:14,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:53:14,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:53:14,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:53:14,576 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:53:14,576 INFO L138 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_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2021-10-21 19:53:14,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:53:14,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:53:14,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:53:14,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:53:14,974 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:53:14,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-10-21 19:53:15,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/data/dfaacc869/c4027c050aae47b8be9d56381734eb64/FLAG9e0d80ca4 [2021-10-21 19:53:15,514 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:53:15,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-10-21 19:53:15,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/data/dfaacc869/c4027c050aae47b8be9d56381734eb64/FLAG9e0d80ca4 [2021-10-21 19:53:15,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/data/dfaacc869/c4027c050aae47b8be9d56381734eb64 [2021-10-21 19:53:15,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:53:15,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:53:15,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:53:15,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:53:15,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:53:15,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:53:15" (1/1) ... [2021-10-21 19:53:15,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0692fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:15, skipping insertion in model container [2021-10-21 19:53:15,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:53:15" (1/1) ... [2021-10-21 19:53:15,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:53:15,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:53:16,160 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-10-21 19:53:16,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:53:16,194 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:53:16,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-10-21 19:53:16,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:53:16,233 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:53:16,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16 WrapperNode [2021-10-21 19:53:16,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:53:16,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:53:16,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:53:16,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:53:16,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:53:16,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:53:16,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:53:16,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:53:16,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:53:16,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:53:16,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:53:16,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:53:16,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:16,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:16,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:16,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:53:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:53:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:53:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:53:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:53:16,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:53:16,618 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:53:16,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16 BoogieIcfgContainer [2021-10-21 19:53:16,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:53:16,621 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:53:16,621 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:53:16,624 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:53:16,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:53:16,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:53:15" (1/3) ... [2021-10-21 19:53:16,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:53:16, skipping insertion in model container [2021-10-21 19:53:16,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:53:16,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (2/3) ... [2021-10-21 19:53:16,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@778012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:53:16, skipping insertion in model container [2021-10-21 19:53:16,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:53:16,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16" (3/3) ... [2021-10-21 19:53:16,629 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2021-10-21 19:53:16,679 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:53:16,686 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:53:16,686 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:53:16,686 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:53:16,698 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:53:16,699 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:53:16,699 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:53:16,699 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:53:16,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:16,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:53:16,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:53:16,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:53:16,750 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:53:16,750 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:53:16,750 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:53:16,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:16,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:53:16,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:53:16,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:53:16,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:53:16,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:53:16,759 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(36); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 10#L24-3true [2021-10-21 19:53:16,760 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 8#L26true assume 4 == main_~i~0;main_~sn~0 := -10; 6#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L24-3true [2021-10-21 19:53:16,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:16,765 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:53:16,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:16,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967590238] [2021-10-21 19:53:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:16,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:16,930 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:53:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:16,991 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-10-21 19:53:16,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:16,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322496917] [2021-10-21 19:53:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:16,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:17,019 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:53:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:17,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:17,035 INFO L82 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-10-21 19:53:17,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:17,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349335647] [2021-10-21 19:53:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:17,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:17,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:17,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349335647] [2021-10-21 19:53:17,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349335647] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:53:17,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:53:17,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:53:17,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263548440] [2021-10-21 19:53:17,177 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:53:17,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:53:17,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:53:17,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:53:17,179 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:53:17,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:53:17,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:53:17,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-10-21 19:53:17,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:53:17,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:53:17,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:53:17,275 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:53:17,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:53:17,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:17,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:53:17,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:53:17,310 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=-10} Honda state: {ULTIMATE.start_main_~sn~0=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:53:17,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:17,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:53:17,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:53:17,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:17,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:17,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,410 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:53:17,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:17,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:53:17,445 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:53:17,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:17,476 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:53:17,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:53:17,477 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:53:17,477 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:53:17,477 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:53:17,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:53:17,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:53:17,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-10-21 19:53:17,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:53:17,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:53:17,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:17,555 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:53:17,559 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:53:17,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,567 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 [2021-10-21 19:53:17,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:53:17,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:53:17,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:53:17,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:53:17,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:53:17,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:53:17,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:53:17,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:53:17,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:53:17,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:17,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,648 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 [2021-10-21 19:53:17,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:53:17,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:53:17,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:53:17,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:53:17,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:53:17,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:53:17,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:53:17,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:53:17,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:53:17,692 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:53:17,692 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:53:17,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:17,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:17,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:17,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:53:17,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:53:17,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:53:17,699 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:53:17,699 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2021-10-21 19:53:17,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 19:53:17,725 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:53:17,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:17,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:53:17,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:17,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:53:17,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:17,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:17,901 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:53:17,916 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-21 19:53:17,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 44 transitions. Complement of second has 7 states. [2021-10-21 19:53:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:53:17,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-21 19:53:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-10-21 19:53:17,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-21 19:53:17,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:17,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-21 19:53:17,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:17,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-21 19:53:17,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:17,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-10-21 19:53:17,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:53:18,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-10-21 19:53:18,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:53:18,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:53:18,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-21 19:53:18,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:53:18,005 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:53:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-21 19:53:18,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-21 19:53:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-21 19:53:18,032 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-21 19:53:18,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:53:18,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:53:18,037 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-21 19:53:18,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:53:18,053 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-21 19:53:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:53:18,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-21 19:53:18,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:53:18,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2021-10-21 19:53:18,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-21 19:53:18,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 19:53:18,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-10-21 19:53:18,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:53:18,061 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-21 19:53:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-10-21 19:53:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2021-10-21 19:53:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-10-21 19:53:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-21 19:53:18,066 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:53:18,066 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:53:18,067 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:53:18,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-10-21 19:53:18,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:53:18,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:53:18,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:53:18,068 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:53:18,068 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:53:18,069 INFO L791 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(36); 113#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 121#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-10-21 19:53:18,069 INFO L793 eck$LassoCheckResult]: Loop: 118#L26 assume !(4 == main_~i~0); 114#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 115#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-10-21 19:53:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:18,070 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-10-21 19:53:18,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:18,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29327319] [2021-10-21 19:53:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:18,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,095 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:53:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:18,114 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-10-21 19:53:18,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:18,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661716672] [2021-10-21 19:53:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:18,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,120 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:53:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:18,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:18,126 INFO L82 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-10-21 19:53:18,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:18,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276753932] [2021-10-21 19:53:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:18,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:53:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:53:18,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:53:18,193 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:53:18,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:53:18,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:53:18,194 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:53:18,194 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:53:18,194 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,194 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:53:18,194 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:53:18,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-10-21 19:53:18,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:53:18,195 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:53:18,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:53:18,266 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:53:18,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:53:18,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:18,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:53:18,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:53:18,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:53:18,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:18,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:53:18,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-10-21 19:53:18,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,402 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:53:18,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:18,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:53:18,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:53:18,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:53:18,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,471 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:53:18,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:53:18,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:18,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,536 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:53:18,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:53:18,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:53:18,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:53:18,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-21 19:53:18,709 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:53:18,710 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:53:18,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:53:18,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:53:18,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:53:18,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:53:18,710 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:53:18,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-10-21 19:53:18,710 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:53:18,711 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:53:18,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:53:18,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:53:18,794 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:53:18,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,803 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 [2021-10-21 19:53:18,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:53:18,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:53:18,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:53:18,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:53:18,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:53:18,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:53:18,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:53:18,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:53:18,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:53:18,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,864 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:53:18,873 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 [2021-10-21 19:53:18,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:53:18,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:53:18,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:53:18,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:53:18,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:53:18,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:53:18,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:53:18,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:53:18,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:18,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,914 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:53:18,918 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 [2021-10-21 19:53:18,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:53:18,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:53:18,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:53:18,926 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:53:18,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:53:18,928 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:53:18,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:53:18,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:53:18,960 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 19:53:18,960 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:53:18,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:53:18,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,964 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:53:18,991 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:53:18,991 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:53:18,991 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:53:18,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:53:19,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:19,027 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:53:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:19,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:53:19,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:19,099 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:53:19,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:19,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:19,153 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:53:19,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 6 states. [2021-10-21 19:53:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:53:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-10-21 19:53:19,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-21 19:53:19,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:19,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-21 19:53:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:19,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-21 19:53:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:53:19,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-10-21 19:53:19,186 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:53:19,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-21 19:53:19,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:53:19,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:53:19,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:53:19,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:19,187 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:53:19,187 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:53:19,187 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:53:19,187 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:53:19,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:53:19,188 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:53:19,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:53:19,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:53:19 BoogieIcfgContainer [2021-10-21 19:53:19,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:53:19,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:53:19,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:53:19,195 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:53:19,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16" (3/4) ... [2021-10-21 19:53:19,198 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:53:19,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:53:19,200 INFO L168 Benchmark]: Toolchain (without parser) took 3308.57 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 56.6 MB in the beginning and 85.5 MB in the end (delta: -28.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:19,201 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:19,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.26 ms. Allocated memory is still 94.4 MB. Free memory was 56.4 MB in the beginning and 70.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:19,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:19,203 INFO L168 Benchmark]: Boogie Preprocessor took 38.38 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 952.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:19,203 INFO L168 Benchmark]: RCFGBuilder took 307.39 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 59.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:19,204 INFO L168 Benchmark]: BuchiAutomizer took 2572.65 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.3 MB in the beginning and 85.5 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:19,204 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 115.3 MB. Free memory is still 85.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:19,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.26 ms. Allocated memory is still 94.4 MB. Free memory was 56.4 MB in the beginning and 70.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.38 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 952.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 307.39 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 59.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2572.65 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.3 MB in the beginning and 85.5 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.22 ms. Allocated memory is still 115.3 MB. Free memory is still 85.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. 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 2. Automata minimization 17.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 11 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf132 smp100 tf107 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 78ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:53:19,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e72d671-0d0a-4a08-a9d5-00af3a6c4995/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...