./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY --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 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:29:41,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:29:41,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:29:41,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:29:41,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:29:41,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:29:41,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:29:41,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:29:41,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:29:41,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:29:41,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:29:41,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:29:41,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:29:41,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:29:41,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:29:41,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:29:41,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:29:41,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:29:41,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:29:41,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:29:41,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:29:41,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:29:41,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:29:41,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:29:41,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:29:41,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:29:41,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:29:41,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:29:41,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:29:41,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:29:41,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:29:41,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:29:41,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:29:41,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:29:41,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:29:41,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:29:41,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:29:41,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:29:41,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:29:42,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:29:42,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:29:42,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:29:42,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:29:42,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:29:42,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:29:42,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:29:42,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:29:42,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:29:42,051 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:29:42,051 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:29:42,051 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:29:42,051 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:29:42,052 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:29:42,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:29:42,053 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:29:42,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:29:42,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:29:42,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:29:42,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:29:42,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:29:42,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:29:42,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:29:42,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:29:42,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:29:42,055 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:29:42,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:29:42,056 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:29:42,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:29:42,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:29:42,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:29:42,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:29:42,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:29:42,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:29:42,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:29:42,059 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:29:42,059 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_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a [2021-11-07 08:29:42,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:29:42,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:29:42,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:29:42,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:29:42,364 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:29:42,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-11-07 08:29:42,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/data/adb8edca8/07922cdc0d094c5eaf10ba83c141b671/FLAG8b6a34fbd [2021-11-07 08:29:42,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:29:42,893 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-11-07 08:29:42,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/data/adb8edca8/07922cdc0d094c5eaf10ba83c141b671/FLAG8b6a34fbd [2021-11-07 08:29:43,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/data/adb8edca8/07922cdc0d094c5eaf10ba83c141b671 [2021-11-07 08:29:43,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:29:43,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:29:43,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:29:43,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:29:43,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:29:43,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704fbd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43, skipping insertion in model container [2021-11-07 08:29:43,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:29:43,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:29:43,562 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_5d0f2a95-784a-4053-a9b2-91abff52245c/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-11-07 08:29:43,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:29:43,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:29:43,592 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_5d0f2a95-784a-4053-a9b2-91abff52245c/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-11-07 08:29:43,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:29:43,611 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:29:43,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43 WrapperNode [2021-11-07 08:29:43,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:29:43,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:29:43,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:29:43,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:29:43,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:29:43,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:29:43,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:29:43,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:29:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:29:43,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:29:43,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:29:43,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:29:43,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (1/1) ... [2021-11-07 08:29:43,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:43,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:43,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:43,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:29:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:29:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:29:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-11-07 08:29:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-11-07 08:29:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:29:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:29:44,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:29:44,026 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 08:29:44,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:44 BoogieIcfgContainer [2021-11-07 08:29:44,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:29:44,029 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:29:44,029 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:29:44,032 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:29:44,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:29:44,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:29:43" (1/3) ... [2021-11-07 08:29:44,048 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a8f7e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:29:44, skipping insertion in model container [2021-11-07 08:29:44,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:29:44,048 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:43" (2/3) ... [2021-11-07 08:29:44,049 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a8f7e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:29:44, skipping insertion in model container [2021-11-07 08:29:44,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:29:44,049 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:44" (3/3) ... [2021-11-07 08:29:44,050 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_20x0-2.c [2021-11-07 08:29:44,125 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:29:44,126 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:29:44,126 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:29:44,126 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:29:44,126 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:29:44,126 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:29:44,127 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:29:44,127 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:29:44,140 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) [2021-11-07 08:29:44,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:29:44,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:29:44,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:29:44,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:29:44,169 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:29:44,169 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:29:44,169 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) [2021-11-07 08:29:44,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:29:44,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:29:44,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:29:44,173 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:29:44,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:29:44,180 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(13);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 := 20;main_~b~0 := 0; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-11-07 08:29:44,180 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 [2021-11-07 08:29:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:29:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-11-07 08:29:44,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:29:44,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322052404] [2021-11-07 08:29:44,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:29:44,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:29:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,334 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:29:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:29:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:29:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-11-07 08:29:44,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:29:44,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45282597] [2021-11-07 08:29:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:29:44,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:29:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,415 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:29:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:29:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:29:44,437 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-11-07 08:29:44,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:29:44,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015442581] [2021-11-07 08:29:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:29:44,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:29:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,472 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:29:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:29:44,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:29:44,670 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:29:44,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:29:44,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:29:44,672 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:29:44,672 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:29:44,672 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:44,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:29:44,673 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:29:44,673 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-11-07 08:29:44,673 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:29:44,673 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:29:44,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:44,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:29:44,757 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:29:44,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:44,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:44,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:44,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:29:44,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:29:44,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:29:44,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:29:44,830 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:29:44,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-07 08:29:44,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:44,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:44,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:44,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:29:44,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:29:44,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:29:44,895 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:29:44,895 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:29:44,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:44,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:44,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:44,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:29:44,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:29:44,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:29:44,953 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 08:29:44,953 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 08:29:44,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-07 08:29:44,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:44,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:44,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:29:44,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:29:44,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:29:45,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-07 08:29:45,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:29:45,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:29:45,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:29:45,078 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:29:45,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:45,084 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:29:45,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:29:45,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:29:45,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:29:45,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:29:45,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:29:45,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:29:45,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-11-07 08:29:45,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:29:45,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:29:45,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:29:45,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:29:45,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:29:45,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,175 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:29:45,180 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 [2021-11-07 08:29:45,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:29:45,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:29:45,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:29:45,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:29:45,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:29:45,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:29:45,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:29:45,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:29:45,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:45,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:29:45,223 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 [2021-11-07 08:29:45,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:29:45,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:29:45,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:29:45,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:29:45,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:29:45,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:29:45,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:29:45,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:29:45,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:45,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:29:45,261 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 [2021-11-07 08:29:45,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:29:45,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:29:45,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:29:45,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:29:45,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:29:45,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:29:45,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:29:45,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:29:45,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-07 08:29:45,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,296 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,298 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 [2021-11-07 08:29:45,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:29:45,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:29:45,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:29:45,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:29:45,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:29:45,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:29:45,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:29:45,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:29:45,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:29:45,367 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:29:45,368 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 08:29:45,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:29:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:29:45,390 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:29:45,422 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:29:45,422 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:29:45,423 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:29:45,423 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-11-07 08:29:45,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:29:45,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:45,463 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:29:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:29:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:29:45,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:29:45,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:29:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:29:45,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:29:45,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:29:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:29:45,625 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 [2021-11-07 08:29:45,627 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) [2021-11-07 08:29:45,704 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. [2021-11-07 08:29:45,704 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 [2021-11-07 08:29:45,706 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) [2021-11-07 08:29:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-07 08:29:45,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-07 08:29:45,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:29:45,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-07 08:29:45,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:29:45,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-07 08:29:45,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:29:45,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-11-07 08:29:45,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:29:45,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-11-07 08:29:45,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:29:45,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:29:45,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:29:45,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:29:45,718 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:29:45,718 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:29:45,718 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:29:45,718 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:29:45,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:29:45,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:29:45,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:29:45,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:29:45 BoogieIcfgContainer [2021-11-07 08:29:45,724 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:29:45,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:29:45,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:29:45,725 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:29:45,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:44" (3/4) ... [2021-11-07 08:29:45,728 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:29:45,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:29:45,730 INFO L168 Benchmark]: Toolchain (without parser) took 2440.20 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 55.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,730 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 63.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:29:45,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.27 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 67.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:29:45,732 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 65.4 MB in the end (delta: 924.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,732 INFO L168 Benchmark]: RCFGBuilder took 352.25 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 56.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,733 INFO L168 Benchmark]: BuchiAutomizer took 1695.17 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 55.7 MB in the end (delta: 523.6 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,734 INFO L168 Benchmark]: Witness Printer took 3.57 ms. Allocated memory is still 109.1 MB. Free memory was 55.7 MB in the beginning and 55.2 MB in the end (delta: 518.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:29:45,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 63.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.27 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 67.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 65.4 MB in the end (delta: 924.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 352.25 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 56.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1695.17 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 55.7 MB in the end (delta: 523.6 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.57 ms. Allocated memory is still 109.1 MB. Free memory was 55.7 MB in the beginning and 55.2 MB in the end (delta: 518.4 kB). Peak memory consumption was 2.1 MB. 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 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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 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: 20ms 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! [2021-11-07 08:29:45,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:29:46,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f2a95-784a-4053-a9b2-91abff52245c/bin/uautomizer-AkOaLMaTGY/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