./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/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_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:43:20,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:43:20,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:43:20,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:43:20,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:43:20,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:43:20,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:43:20,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:43:20,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:43:20,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:43:20,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:43:20,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:43:20,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:43:20,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:43:20,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:43:20,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:43:20,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:43:20,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:43:20,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:43:20,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:43:20,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:43:20,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:43:20,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:43:20,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:43:20,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:43:20,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:43:20,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:43:20,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:43:20,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:43:20,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:43:20,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:43:20,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:43:20,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:43:20,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:43:20,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:43:20,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:43:20,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:43:20,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:43:20,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:43:20,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:43:20,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:43:20,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 13:43:20,333 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:43:20,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:43:20,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:43:20,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:43:20,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:43:20,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:43:20,337 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:43:20,337 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:43:20,338 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:43:20,338 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:43:20,338 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:43:20,338 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:43:20,339 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:43:20,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:43:20,339 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:43:20,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:43:20,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:43:20,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:43:20,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:43:20,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:43:20,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:43:20,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:43:20,342 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:43:20,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:43:20,342 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:43:20,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:43:20,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:43:20,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:43:20,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:43:20,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:43:20,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:43:20,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:43:20,345 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:43:20,346 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_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2021-11-23 13:43:20,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:43:20,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:43:20,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:43:20,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:43:20,622 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:43:20,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-23 13:43:20,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/data/6e9395bad/e4b523fc58df437db826d8391fd01b3c/FLAGc4b7ad1d7 [2021-11-23 13:43:21,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:43:21,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-23 13:43:21,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/data/6e9395bad/e4b523fc58df437db826d8391fd01b3c/FLAGc4b7ad1d7 [2021-11-23 13:43:21,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/data/6e9395bad/e4b523fc58df437db826d8391fd01b3c [2021-11-23 13:43:21,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:43:21,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:43:21,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:43:21,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:43:21,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:43:21,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb31cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21, skipping insertion in model container [2021-11-23 13:43:21,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:43:21,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:43:21,381 WARN L230 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_69d3a465-d0cb-4521-9159-d5421c90d22d/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-23 13:43:21,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:43:21,409 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:43:21,425 WARN L230 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_69d3a465-d0cb-4521-9159-d5421c90d22d/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-23 13:43:21,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:43:21,447 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:43:21,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21 WrapperNode [2021-11-23 13:43:21,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:43:21,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:43:21,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:43:21,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:43:21,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,481 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2021-11-23 13:43:21,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:43:21,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:43:21,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:43:21,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:43:21,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:43:21,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:43:21,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:43:21,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:43:21,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (1/1) ... [2021-11-23 13:43:21,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:21,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:21,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:21,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:43:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:43:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:43:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:43:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:43:21,649 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:43:21,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:43:21,738 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:43:21,744 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:43:21,744 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:43:21,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:21 BoogieIcfgContainer [2021-11-23 13:43:21,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:43:21,747 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:43:21,747 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:43:21,750 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:43:21,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:43:21,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:43:21" (1/3) ... [2021-11-23 13:43:21,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26dabb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:43:21, skipping insertion in model container [2021-11-23 13:43:21,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:43:21,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:21" (2/3) ... [2021-11-23 13:43:21,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26dabb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:43:21, skipping insertion in model container [2021-11-23 13:43:21,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:43:21,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:21" (3/3) ... [2021-11-23 13:43:21,754 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2021-11-23 13:43:21,798 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:43:21,799 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:43:21,799 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:43:21,799 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:43:21,799 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:43:21,799 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:43:21,799 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:43:21,800 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:43:21,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) 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) [2021-11-23 13:43:21,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:43:21,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:43:21,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:43:21,837 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:43:21,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:43:21,837 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:43:21,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) 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) [2021-11-23 13:43:21,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:43:21,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:43:21,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:43:21,839 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:43:21,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:43:21,846 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(36, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 11#L24-3true [2021-11-23 13:43:21,846 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-3true assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 9#L26true assume 4 == main_~i~0#1;main_~sn~0#1 := -10; 7#L24-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 11#L24-3true [2021-11-23 13:43:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:43:21,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:21,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986084415] [2021-11-23 13:43:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:21,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:21,963 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:43:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:21,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:43:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-11-23 13:43:22,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:22,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619477572] [2021-11-23 13:43:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:22,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:22,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:43:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:22,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:43:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:22,021 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-11-23 13:43:22,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:22,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947136915] [2021-11-23 13:43:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:22,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:22,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:43:22,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947136915] [2021-11-23 13:43:22,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947136915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:43:22,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:43:22,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:43:22,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694032669] [2021-11-23 13:43:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:43:22,221 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:43:22,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:43:22,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:43:22,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:43:22,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:43:22,223 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:43:22,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:43:22,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-11-23 13:43:22,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:43:22,223 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:43:22,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,371 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:43:22,372 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:43:22,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:43:22,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:43:22,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:22,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:43:22,419 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:43:22,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:43:22,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:43:22,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:22,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:43:22,484 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=-10} Honda state: {ULTIMATE.start_main_~sn~0#1=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:43:22,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:43:22,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:43:22,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:22,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:43:22,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:43:22,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:22,630 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:43:22,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,656 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:43:22,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:43:22,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:43:22,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:43:22,657 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:43:22,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:43:22,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:43:22,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-11-23 13:43:22,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:43:22,657 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:43:22,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:22,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:43:22,720 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:43:22,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:43:22,736 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 [2021-11-23 13:43:22,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:43:22,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:43:22,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:43:22,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:43:22,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:43:22,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:43:22,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:43:22,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:43:22,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,801 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,811 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 [2021-11-23 13:43:22,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:43:22,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:43:22,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:43:22,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:43:22,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:43:22,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:43:22,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:43:22,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:43:22,837 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:43:22,848 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:43:22,848 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-23 13:43:22,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:22,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:22,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:22,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:43:22,884 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:43:22,884 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:43:22,884 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2021-11-23 13:43:22,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:43:22,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:22,911 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:43:22,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:22,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:43:22,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:22,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:43:22,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:23,054 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 [2021-11-23 13:43:23,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) 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) 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) [2021-11-23 13:43:23,105 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) 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). 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 35 states and 47 transitions. Complement of second has 7 states. [2021-11-23 13:43:23,107 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 [2021-11-23 13:43:23,112 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) [2021-11-23 13:43:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-11-23 13:43:23,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-23 13:43:23,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:23,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-23 13:43:23,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:23,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-23 13:43:23,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:23,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. [2021-11-23 13:43:23,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:43:23,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 15 transitions. [2021-11-23 13:43:23,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-23 13:43:23,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-23 13:43:23,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-11-23 13:43:23,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:43:23,127 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-23 13:43:23,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-11-23 13:43:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-11-23 13:43:23,146 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) [2021-11-23 13:43:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-23 13:43:23,148 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-23 13:43:23,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:43:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:43:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:43:23,152 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) [2021-11-23 13:43:23,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:43:23,169 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-11-23 13:43:23,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:43:23,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-11-23 13:43:23,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:43:23,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2021-11-23 13:43:23,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-23 13:43:23,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-23 13:43:23,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-11-23 13:43:23,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:43:23,173 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-11-23 13:43:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-11-23 13:43:23,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2021-11-23 13:43:23,175 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) [2021-11-23 13:43:23,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-11-23 13:43:23,176 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-23 13:43:23,176 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-23 13:43:23,176 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:43:23,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-11-23 13:43:23,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:43:23,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:43:23,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:43:23,178 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-23 13:43:23,178 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:43:23,178 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(36, 2); 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~i~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 125#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 122#L26 [2021-11-23 13:43:23,178 INFO L793 eck$LassoCheckResult]: Loop: 122#L26 assume !(4 == main_~i~0#1); 118#L24-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 119#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1);main_~sn~0#1 := 2 + main_~sn~0#1; 122#L26 [2021-11-23 13:43:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:23,179 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-11-23 13:43:23,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:23,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458739435] [2021-11-23 13:43:23,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:23,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,192 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:43:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:43:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-11-23 13:43:23,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:23,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137685419] [2021-11-23 13:43:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:23,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,222 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:43:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:43:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:23,227 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-11-23 13:43:23,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:43:23,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972916341] [2021-11-23 13:43:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:23,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:43:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,241 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:43:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:43:23,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:43:23,285 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:43:23,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:43:23,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:43:23,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:43:23,286 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:43:23,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:43:23,286 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:43:23,286 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-11-23 13:43:23,286 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:43:23,286 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:43:23,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:43:23,343 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:43:23,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:43:23,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:23,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:43:23,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,417 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:43:23,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:23,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:43:23,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:43:23,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=4}, {ULTIMATE.start_main_~sn~0#1=0}, {ULTIMATE.start_main_~sn~0#1=-2}] Lambdas: [1, 6, 1] Nus: [0, 0] [2021-11-23 13:43:23,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,494 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:43:23,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:23,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:43:23,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,565 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 13:43:23,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:43:23,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:43:23,689 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:43:23,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-23 13:43:23,695 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:43:23,695 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:43:23,695 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:43:23,695 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:43:23,695 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:43:23,695 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,695 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:43:23,695 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:43:23,695 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-11-23 13:43:23,695 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:43:23,696 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:43:23,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:43:23,763 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:43:23,763 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:43:23,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,765 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 13:43:23,785 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 [2021-11-23 13:43:23,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:43:23,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:43:23,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:43:23,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:43:23,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:43:23,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:43:23,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:43:23,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:43:23,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,867 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-23 13:43:23,872 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 [2021-11-23 13:43:23,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:43:23,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:43:23,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:43:23,880 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-23 13:43:23,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:43:23,883 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-23 13:43:23,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:43:23,910 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:43:23,917 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-23 13:43:23,918 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:43:23,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:43:23,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:43:23,923 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:43:23,929 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:43:23,929 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:43:23,929 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:43:23,929 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-11-23 13:43:23,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-23 13:43:23,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:23,963 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:43:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:23,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:43:23,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:23,997 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:43:23,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:24,025 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 [2021-11-23 13:43:24,025 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) [2021-11-23 13:43:24,044 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. [2021-11-23 13:43:24,045 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 [2021-11-23 13:43:24,046 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) [2021-11-23 13:43:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-11-23 13:43:24,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-23 13:43:24,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:24,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-23 13:43:24,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:24,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-23 13:43:24,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:43:24,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-11-23 13:43:24,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:43:24,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-11-23 13:43:24,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 13:43:24,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 13:43:24,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 13:43:24,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:43:24,049 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:43:24,049 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:43:24,049 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:43:24,049 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:43:24,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:43:24,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:43:24,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-23 13:43:24,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:43:24 BoogieIcfgContainer [2021-11-23 13:43:24,056 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:43:24,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:43:24,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:43:24,057 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:43:24,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:21" (3/4) ... [2021-11-23 13:43:24,061 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:43:24,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:43:24,062 INFO L158 Benchmark]: Toolchain (without parser) took 2888.72ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 59.8MB in the beginning and 85.1MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:24,062 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.0MB in the beginning and 67.0MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:24,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.27ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 70.3MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:43:24,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.45ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 69.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:43:24,064 INFO L158 Benchmark]: Boogie Preprocessor took 30.79ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 67.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:24,064 INFO L158 Benchmark]: RCFGBuilder took 231.49ms. Allocated memory is still 94.4MB. Free memory was 67.8MB in the beginning and 59.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:43:24,065 INFO L158 Benchmark]: BuchiAutomizer took 2309.85ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 85.1MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:24,065 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 119.5MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:24,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.0MB in the beginning and 67.0MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.27ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 70.3MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.45ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 69.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.79ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 67.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.49ms. Allocated memory is still 94.4MB. Free memory was 67.8MB in the beginning and 59.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2309.85ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 85.1MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 119.5MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 -1 * i + n 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 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s 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: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 14 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 62ms 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! [2021-11-23 13:43:24,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:24,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d3a465-d0cb-4521-9159-d5421c90d22d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE