./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:16:22,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:16:22,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:16:22,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:16:22,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:16:22,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:16:22,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:16:22,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:16:22,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:16:22,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:16:22,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:16:22,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:16:22,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:16:22,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:16:22,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:16:22,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:16:22,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:16:22,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:16:22,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:16:22,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:16:22,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:16:22,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:16:22,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:16:22,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:16:22,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:16:22,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:16:22,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:16:22,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:16:22,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:16:22,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:16:22,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:16:22,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:16:22,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:16:22,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:16:22,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:16:22,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:16:22,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:16:22,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:16:22,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:16:22,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:16:22,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:16:22,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:16:22,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:16:22,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:16:22,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:16:22,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:16:22,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:16:22,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:16:22,200 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:16:22,201 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:16:22,201 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:16:22,201 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:16:22,201 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:16:22,201 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:16:22,202 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:16:22,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:16:22,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:16:22,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:16:22,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:16:22,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:16:22,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:16:22,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:16:22,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:16:22,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:16:22,204 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:16:22,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:16:22,204 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:16:22,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:16:22,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:16:22,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:16:22,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:16:22,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:16:22,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:16:22,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:16:22,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:16:22,207 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_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2021-10-28 23:16:22,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:16:22,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:16:22,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:16:22,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:16:22,477 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:16:22,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-10-28 23:16:22,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/data/c307b5d94/0d35f491c1e9460ebce16fb3bd4e71de/FLAGc1b6a7afe [2021-10-28 23:16:23,024 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:16:23,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-10-28 23:16:23,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/data/c307b5d94/0d35f491c1e9460ebce16fb3bd4e71de/FLAGc1b6a7afe [2021-10-28 23:16:23,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/data/c307b5d94/0d35f491c1e9460ebce16fb3bd4e71de [2021-10-28 23:16:23,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:16:23,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:16:23,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:23,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:16:23,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:16:23,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3362455a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23, skipping insertion in model container [2021-10-28 23:16:23,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:16:23,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:16:23,606 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_c711c30a-2b73-4978-92d3-2b338453e296/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-10-28 23:16:23,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:23,621 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:16:23,634 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_c711c30a-2b73-4978-92d3-2b338453e296/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-10-28 23:16:23,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:23,650 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:16:23,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23 WrapperNode [2021-10-28 23:16:23,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:23,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:23,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:16:23,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:16:23,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:23,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:16:23,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:16:23,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:16:23,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:16:23,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:16:23,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:16:23,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:16:23,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (1/1) ... [2021-10-28 23:16:23,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:23,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:23,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:16:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:16:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:16:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:16:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:16:24,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:16:24,004 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:16:24,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:24 BoogieIcfgContainer [2021-10-28 23:16:24,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:16:24,010 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:16:24,010 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:16:24,014 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:16:24,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:16:24,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:16:23" (1/3) ... [2021-10-28 23:16:24,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42849f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:16:24, skipping insertion in model container [2021-10-28 23:16:24,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:16:24,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:23" (2/3) ... [2021-10-28 23:16:24,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42849f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:16:24, skipping insertion in model container [2021-10-28 23:16:24,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:16:24,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:24" (3/3) ... [2021-10-28 23:16:24,021 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2021-10-28 23:16:24,103 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:16:24,120 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:16:24,121 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:16:24,121 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:16:24,121 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:16:24,121 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:16:24,121 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:16:24,121 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:16:24,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:24,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:16:24,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:16:24,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:16:24,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:16:24,184 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:16:24,184 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:16:24,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:24,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:16:24,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:16:24,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:16:24,188 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:16:24,188 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:16:24,196 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(36); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 10#L24-3true [2021-10-28 23:16:24,197 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 8#L26true assume 4 == main_~i~0;main_~sn~0 := -10; 6#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L24-3true [2021-10-28 23:16:24,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:16:24,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:24,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351712726] [2021-10-28 23:16:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:24,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:24,323 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:16:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:24,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:16:24,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:24,370 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-10-28 23:16:24,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:24,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55397980] [2021-10-28 23:16:24,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:24,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:24,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:16:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:24,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:16:24,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-10-28 23:16:24,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:24,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952149295] [2021-10-28 23:16:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:24,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:24,534 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 23:16:24,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:24,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952149295] [2021-10-28 23:16:24,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952149295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:24,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:24,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:16:24,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779469113] [2021-10-28 23:16:24,610 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:16:24,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:16:24,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:16:24,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:16:24,611 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:16:24,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:24,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:16:24,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:16:24,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-10-28 23:16:24,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:16:24,612 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:16:24,631 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 23:16:24,639 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 23:16:24,650 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 23:16:24,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:16:24,719 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:16:24,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:24,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:24,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:24,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:16:24,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:24,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:16:24,769 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:16:24,770 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=-10} Honda state: {ULTIMATE.start_main_~sn~0=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:16:24,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:24,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:24,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:24,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:24,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:16:24,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:16:24,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:24,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:24,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:24,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:24,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:24,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:16:24,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:16:24,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:24,887 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:16:24,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 23:16:24,915 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:16:24,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:16:24,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:16:24,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:16:24,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:16:24,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:24,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:16:24,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:16:24,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-10-28 23:16:24,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:16:24,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:16:24,918 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 23:16:24,923 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 23:16:24,960 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 23:16:25,016 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:16:25,020 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:16:25,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,041 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 23:16:25,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:16:25,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:16:25,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:16:25,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:16:25,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:16:25,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:16:25,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:16:25,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:16:25,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:16:25,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:25,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,130 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 23:16:25,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:16:25,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:16:25,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:16:25,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:16:25,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:16:25,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:16:25,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:16:25,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:16:25,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:16:25,170 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:16:25,170 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:16:25,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:16:25,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:16:25,216 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:16:25,216 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:16:25,216 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2021-10-28 23:16:25,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:25,241 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:16:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:25,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:16:25,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:25,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:16:25,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:25,338 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 23:16:25,355 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:16:25,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 44 transitions. Complement of second has 7 states. [2021-10-28 23:16:25,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:16:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-10-28 23:16:25,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 23:16:25,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:25,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:16:25,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:25,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 23:16:25,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:25,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-10-28 23:16:25,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:16:25,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-10-28 23:16:25,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:16:25,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 23:16:25,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-28 23:16:25,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:16:25,452 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:16:25,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-28 23:16:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-28 23:16:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-28 23:16:25,474 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 23:16:25,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:16:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:16:25,479 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:25,492 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-28 23:16:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:16:25,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-28 23:16:25,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:16:25,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2021-10-28 23:16:25,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:16:25,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:16:25,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-10-28 23:16:25,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:16:25,496 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 23:16:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-10-28 23:16:25,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2021-10-28 23:16:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-28 23:16:25,498 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:16:25,499 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:16:25,499 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:16:25,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-10-28 23:16:25,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:16:25,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:16:25,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:16:25,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:16:25,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:16:25,501 INFO L791 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(36); 113#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 121#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-10-28 23:16:25,501 INFO L793 eck$LassoCheckResult]: Loop: 118#L26 assume !(4 == main_~i~0); 114#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 115#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-10-28 23:16:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-10-28 23:16:25,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:25,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447686806] [2021-10-28 23:16:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:25,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,524 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:16:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:16:25,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-10-28 23:16:25,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:25,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578232022] [2021-10-28 23:16:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:25,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,549 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:16:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:16:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-10-28 23:16:25,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:25,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837877122] [2021-10-28 23:16:25,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:25,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,575 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:16:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:16:25,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:16:25,626 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:16:25,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:16:25,627 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:16:25,627 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:16:25,627 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:16:25,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:16:25,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:16:25,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-10-28 23:16:25,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:16:25,628 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:16:25,629 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 23:16:25,632 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 23:16:25,635 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 23:16:25,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:16:25,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:16:25,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:16:25,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:16:25,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:25,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,759 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:16:25,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:25,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:16:25,823 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:16:25,823 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-10-28 23:16:25,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:25,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,870 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:16:25,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:16:25,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:25,899 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:16:25,900 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:16:25,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:25,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:25,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:25,946 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:25,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:16:25,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:25,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:16:26,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,021 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:16:26,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:16:26,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:16:26,185 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:16:26,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,188 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:16:26,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:16:26,188 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:16:26,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:16:26,188 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:16:26,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,188 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:16:26,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:16:26,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-10-28 23:16:26,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:16:26,189 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:16:26,190 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 23:16:26,196 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 23:16:26,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:16:26,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:16:26,275 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:16:26,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,277 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,281 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 23:16:26,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:16:26,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:16:26,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:16:26,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:16:26,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:16:26,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:16:26,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:16:26,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:16:26,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:16:26,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,340 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:16:26,342 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 23:16:26,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:16:26,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:16:26,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:16:26,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:16:26,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:16:26,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:16:26,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:16:26,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:16:26,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,384 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:16:26,388 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 23:16:26,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:16:26,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:16:26,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:16:26,396 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:16:26,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:16:26,398 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:16:26,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:16:26,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:16:26,419 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:16:26,419 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:16:26,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:16:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,426 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:16:26,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:16:26,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:16:26,445 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:16:26,445 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 23:16:26,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,480 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:16:26,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:26,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:16:26,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:26,546 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:16:26,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:26,576 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 23:16:26,577 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:16:26,577 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:26,597 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 6 states. [2021-10-28 23:16:26,597 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 23:16:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-10-28 23:16:26,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 23:16:26,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:26,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:16:26,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:26,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 23:16:26,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:16:26,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-10-28 23:16:26,600 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:16:26,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:16:26,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:16:26,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:16:26,601 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:16:26,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:16:26,601 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:16:26,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:16:26,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:16:26 BoogieIcfgContainer [2021-10-28 23:16:26,607 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:16:26,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:16:26,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:16:26,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:16:26,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:24" (3/4) ... [2021-10-28 23:16:26,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:16:26,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:16:26,613 INFO L168 Benchmark]: Toolchain (without parser) took 3219.74 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 94.6 MB in the beginning and 81.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,614 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 123.7 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:16:26,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.31 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 98.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 123.7 MB. Free memory was 98.3 MB in the beginning and 96.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,615 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 123.7 MB. Free memory was 96.8 MB in the beginning and 95.9 MB in the end (delta: 903.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:16:26,616 INFO L168 Benchmark]: RCFGBuilder took 299.50 ms. Allocated memory is still 123.7 MB. Free memory was 95.9 MB in the beginning and 86.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,617 INFO L168 Benchmark]: BuchiAutomizer took 2597.13 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 86.9 MB in the beginning and 82.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,617 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 155.2 MB. Free memory was 82.1 MB in the beginning and 81.4 MB in the end (delta: 728.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:26,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 123.7 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.31 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 98.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 123.7 MB. Free memory was 98.3 MB in the beginning and 96.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 123.7 MB. Free memory was 96.8 MB in the beginning and 95.9 MB in the end (delta: 903.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 299.50 ms. Allocated memory is still 123.7 MB. Free memory was 95.9 MB in the beginning and 86.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2597.13 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 86.9 MB in the beginning and 82.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.72 ms. Allocated memory is still 155.2 MB. Free memory was 82.1 MB in the beginning and 81.4 MB in the end (delta: 728.7 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 11 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf132 smp100 tf107 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:16:26,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:26,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:27,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c711c30a-2b73-4978-92d3-2b338453e296/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...