./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg --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 b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:41:32,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:41:32,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:41:32,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:41:32,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:41:32,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:41:32,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:41:32,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:41:32,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:41:32,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:41:32,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:41:32,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:41:32,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:41:32,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:41:32,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:41:32,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:41:32,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:41:32,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:41:32,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:41:32,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:41:32,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:41:32,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:41:32,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:41:32,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:41:32,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:41:32,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:41:32,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:41:32,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:41:32,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:41:32,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:41:32,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:41:32,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:41:32,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:41:32,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:41:32,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:41:32,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:41:32,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:41:32,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:41:32,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:41:32,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:41:32,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:41:32,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:41:32,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:41:32,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:41:32,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:41:32,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:41:32,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:41:32,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:41:32,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:41:32,651 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:41:32,651 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:41:32,651 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:41:32,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:41:32,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:41:32,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:41:32,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:41:32,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:41:32,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:41:32,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:41:32,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:41:32,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:41:32,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:41:32,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:41:32,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:41:32,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:41:32,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:41:32,656 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:41:32,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:41:32,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:41:32,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:41:32,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:41:32,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:41:32,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:41:32,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:41:32,660 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:41:32,660 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_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a [2021-10-28 08:41:33,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:41:33,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:41:33,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:41:33,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:41:33,083 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:41:33,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2021-10-28 08:41:33,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/data/10b4eb4e6/d1e0c4c40cd44122b7aee06cfedc3557/FLAGb0af36d00 [2021-10-28 08:41:33,707 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:41:33,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2021-10-28 08:41:33,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/data/10b4eb4e6/d1e0c4c40cd44122b7aee06cfedc3557/FLAGb0af36d00 [2021-10-28 08:41:34,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/data/10b4eb4e6/d1e0c4c40cd44122b7aee06cfedc3557 [2021-10-28 08:41:34,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:41:34,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:41:34,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:34,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:41:34,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:41:34,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777d9768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34, skipping insertion in model container [2021-10-28 08:41:34,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:41:34,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:41:34,386 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2021-10-28 08:41:34,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:34,405 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:41:34,427 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2021-10-28 08:41:34,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:34,452 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:41:34,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34 WrapperNode [2021-10-28 08:41:34,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:34,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:34,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:41:34,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:41:34,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:34,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:41:34,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:41:34,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:41:34,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:41:34,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:41:34,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:41:34,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:41:34,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (1/1) ... [2021-10-28 08:41:34,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:41:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:41:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:41:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-28 08:41:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-28 08:41:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:41:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:41:34,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:41:34,920 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 08:41:34,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:34 BoogieIcfgContainer [2021-10-28 08:41:34,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:41:34,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:41:34,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:41:34,929 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:41:34,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:34,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:41:34" (1/3) ... [2021-10-28 08:41:34,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c571f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:34, skipping insertion in model container [2021-10-28 08:41:34,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:34,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:34" (2/3) ... [2021-10-28 08:41:34,934 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c571f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:34, skipping insertion in model container [2021-10-28 08:41:34,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:34,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:34" (3/3) ... [2021-10-28 08:41:34,936 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_2x3-1.c [2021-10-28 08:41:35,020 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:41:35,021 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:41:35,021 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:41:35,021 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:41:35,022 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:41:35,022 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:41:35,022 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:41:35,022 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:41:35,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:41:35,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:41:35,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:35,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:35,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:41:35,092 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:41:35,092 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:41:35,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:41:35,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:41:35,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:35,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:35,098 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:41:35,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:41:35,108 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(12);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 2;main_~b~0 := 3; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-10-28 08:41:35,109 INFO L793 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-10-28 08:41:35,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-28 08:41:35,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:35,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941723191] [2021-10-28 08:41:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:35,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,284 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-28 08:41:35,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:35,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262030989] [2021-10-28 08:41:35,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:35,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,397 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-28 08:41:35,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:35,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866327283] [2021-10-28 08:41:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:35,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,461 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:35,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:35,751 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:35,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:35,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:35,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:35,753 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:35,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:35,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:35,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:35,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-1.c_Iteration1_Loop [2021-10-28 08:41:35,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:35,754 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:35,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:35,868 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:35,869 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:35,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:35,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:35,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:35,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:35,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:35,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:41:35,922 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:35,922 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:35,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:35,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:35,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:35,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:35,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:35,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:35,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:41:36,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:36,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:36,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:36,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:36,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:41:36,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:36,080 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:36,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:41:36,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:36,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:36,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,184 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:41:36,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:36,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:36,259 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:36,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 08:41:36,265 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:36,265 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:36,266 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:36,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:36,266 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:36,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:36,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:36,266 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-1.c_Iteration1_Loop [2021-10-28 08:41:36,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:36,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:36,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:36,374 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:36,381 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:36,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:36,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:36,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:36,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:36,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:36,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:36,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:41:36,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:36,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:36,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:36,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,459 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:41:36,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:36,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:36,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:36,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:36,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:36,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:36,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:36,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:36,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:36,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 08:41:36,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,516 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:41:36,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:36,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:36,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:36,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:36,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:36,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:36,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:36,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:36,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:36,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,553 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:41:36,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:36,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:36,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:36,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:36,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:36,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:36,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:36,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:36,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:36,588 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:36,588 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:36,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:36,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:36,591 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:36,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:41:36,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:36,593 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:36,593 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:36,593 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-10-28 08:41:36,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:36,620 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:36,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:36,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:36,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:41:36,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:36,746 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:36,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:36,837 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states. [2021-10-28 08:41:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-28 08:41:36,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 08:41:36,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:36,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 08:41:36,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:36,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 08:41:36,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:36,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-28 08:41:36,850 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:41:36,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-28 08:41:36,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:41:36,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:41:36,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:41:36,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:41:36,856 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:36,856 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:36,856 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:36,856 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:41:36,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:41:36,856 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:41:36,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:41:36,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:41:36 BoogieIcfgContainer [2021-10-28 08:41:36,864 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:41:36,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:41:36,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:41:36,865 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:41:36,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:34" (3/4) ... [2021-10-28 08:41:36,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:41:36,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:41:36,871 INFO L168 Benchmark]: Toolchain (without parser) took 2791.10 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 52.1 MB in the beginning and 59.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:36,872 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:36,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.57 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.9 MB in the beginning and 90.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:36,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.60 ms. Allocated memory is still 113.2 MB. Free memory was 90.4 MB in the beginning and 89.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:36,874 INFO L168 Benchmark]: Boogie Preprocessor took 34.50 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 88.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:36,875 INFO L168 Benchmark]: RCFGBuilder took 388.34 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 79.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:36,876 INFO L168 Benchmark]: BuchiAutomizer took 1940.08 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 59.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:36,877 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 113.2 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:36,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.57 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.9 MB in the beginning and 90.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.60 ms. Allocated memory is still 113.2 MB. Free memory was 90.4 MB in the beginning and 89.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.50 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 88.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 388.34 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 79.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1940.08 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 59.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.07 ms. Allocated memory is still 113.2 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:41:36,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:37,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7d9052b-ae07-46ff-ae2a-26099871b085/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...